Stanyl® TW272B6

Identification & Functionality

Additives Included

Heat Stabilizer,

Lubricant (PTFE)

Chemical Family

Polyamides

Fillers Included

Carbon Fiber

Polymer Name

Polyamide 46 (PA 46)

Plastics & Elastomers Functions

Resin

Technologies

Plastics

Product Families

Plastics — Engineering & Specialty Polymers

Polyamides

Features & Benefits

Materials Features

Friction Resistant,

Heat Resistance,

Heat Stabilized,

Low Friction,

Low Wear,

UL Flame Rated,

Wear Resistant

Applications & Uses

Markets

Automotive & Transportation

Applications

Automotive & Transportation — Automotive

Electrical & Electronic Systems,

Powertrain & UTH

Plastics & Elastomers Processing Methods

Injection Molding

Properties

Flame Rating

UL 94 HB

Mechanical Properties

	Value	Units	Test Method / Conditions
Tensile Modulus	23500 / 14500	MPa	ISO 527-1/-2
Tensile Modulus (-40°C)	23500 / -	MPa	ISO 527-1/-2
Tensile Modulus (120°C)	12500 / -	MPa	ISO 527-1/-2
Tensile Modulus (160°C)	11000 / *	MPa	ISO 527-1/-2
Tensile Modulus (180°C)	10500 / *	MPa	ISO 527-1/-2
Tensile Modulus (200°C)	10000 / *	MPa	ISO 527-1/-2
Stress at Break	250 / 160	MPa	ISO 527-1/-2
Stress at Break (-40°C)	265 / -	MPa	ISO 527-1/-2
Stress at Break (120°C)	130 / -	MPa	ISO 527-1/-2
Stress at Break (160°C)	110 / *	MPa	ISO 527-1/-2
Stress at Break (180°C)	100 / *	MPa	ISO 527-1/-2
Stress at Break (200°C)	90 / *	MPa	ISO 527-1/-2
Strain at Break	1.6 / 3.5	%	ISO 527-1/-2
Strain at Break (at -40°C)	1.5 / -	%	ISO 527-1/-2
Strain at Break (at 120°C)	3.1 / -	%	ISO 527-1/-2
Strain at Break (at 160°C)	3.1 / *	%	ISO 527-1/-2
Strain at Break (at 180°C)	3.1 / *	%	ISO 527-1/-2
Strain at Break (at 200°C)	3.1 / *	%	ISO 527-1/-2
Flexural Modulus	21000 / 12500	MPa	ISO 178
Flexural Modulus (at 120°C)	10500 / *	MPa	ISO 178
Flexural Modulus (at 160°C)	10000 / *	MPa	ISO 178
Flexural Strength	340 / 240	MPa	ISO 178
Flexural Strength (at 120°C)	200 / *	MPa	ISO 178
Flexural Strength (at 160°C)	170 / *	MPa	ISO 178
Charpy Impact Strength (at +23°C)	50 / 80	kJ/m²	ISO 179/1eU
Charpy Impact Strength (at -30°C)	50 / 55	kJ/m²	ISO 179/1eU
Charpy Notched Impact Strength (at +23°C)	8 / 13	kJ/m²	ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)	7 / 7	kJ/m²	ISO 179/1eA
Weldline Strength (at thickness 4 / * mm)	70 / 45	MPa	ISO 527-1/-2
Weldline Strain (at thickness 4 / * mm)	0.5 / 0.9	%	ISO 527-1/-2

Thermal Properties

	Value	Units	Test Method / Conditions
Melting Temperature (10°C/min)	295 / *	°C	ISO 11357-1/-3
Glass Transition Temperature (at 10°C/min)	75 / *	°C	ISO 11357-1/-2
Temperature of Deflection Under Load (1.80 MPa)	290 / *	°C	ISO 75-1/-2
Coefficient of Linear Thermal Expansion (parallel)	0.25 / *	E-4/°C	ISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)	0.35 / *	E-4/°C	ISO 11359-1/-2
Burning Behaviour (at 3 / * mm Nominal Thickness)	UL HB / *	class	IEC 60695-11-10

Material Specific Properties

	Value	Units	Test Method / Conditions
Viscosity Number	150 / *	cm³/g	ISO 307, 1157, 1628

Other Properties

	Value	Units	Test Method / Conditions
Water Absorption	8.1 / *	%	Sim. to ISO 62
Water Absorption in Water (at 23°C after 24h)	2.25 / *	%	ISO 62
Humidity Absorption	2.2 / *	%	Sim. to ISO 62
Density	1360 / -	kg/m³	ISO 1183

Rheological Properties

	Value	Units	Test Method / Conditions
Molding Shrinkage (parallel)	0.3 / *	%	ISO 294-4
Molding Shrinkage (normal)	0.6 / *	%	ISO 294-4

Grade Coding for Injection Molding

Stanyl® PA46 carbon fiber reinforced injection molding grades.

Regulatory & Compliance

Certifications & Compliance

ISO 14001,

OHSAS,

REACH (Europe),

UL 94

Quality Standards

UL Yellow Card (E172082)

Technical Details & Test Data

Machinery for Injection Molding

Stanyl® grades can be processed on general injection molding machines.
Screw Geometry

• Typically 3-zone screw designs with volumetric compression ratios of approximately 2.5 work fine.

Steel Type

• Abrasive & corrosion resistant tool steels which are normally used for glass and/or mineral reinforced, flame retardant materials are also to be used for Stanyl® polymers in tools, nozzles and screws.

Nozzle Temperature Control

• Due to the combination of the typical high melting temperature of Stanyl® and consequently its high processing temperature, it is necessary to have a good temperature control for the nozzle. The use of an open nozzle or, even better, a reversed tapered nozzle with good temperature control and an independently-controlled thermocouple nearby the tip and heater bands with sufficient output is recommended.
• The nozzle temperature should be set as high as possible to prevent a cold slug, yet low enough to prevent excessive drool.

Venting Design

• A good venting design is crucial for good molding behavior (easy filling) and low outgassing/mold deposit. Blocked vents can lead to incomplete parts and/or burning at the end of the flow path (diesel effect).
• It is recommended to use venting on all inserts (explosive venting) and also on the runner system. Use decreased injection speeds during filling in order to make the venting as effective as possible.

Hot Runner Layout

• The fast crystallization of Stanyl® asks for specific hot runner design rules. For more details, there is also a special hot runner flyer available for all Stanyl® grades. Please contact your Envalior sales or check our websites.
• Try to achieve a close contact with your hot runner supplier and Envalior as the material supplier, to ensure that the right hot runner system i is chosen.
• When processing Stanyl® with hot runners, keep in mind these basic rules:

1. Central bushing heated separately
2. Only use external heated system
3. Manifold heated from both sides
4. Tip with thermocouple in front (near gate)
5. Very accurate temperature control in the gate area

Stress-Strain (cond.)

Chemical Resistance

Chemical Type	Chemical Name	Resistance
Other	Acetaldehyde (40% by mass) at 23°C	resistant
Other	Acetamide (50% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Acetamide (50% by mass) at >140°C	not resistant
Other	Acetic acid (10% by mass) at 100°C	not resistant
Other	Acetic acid (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Acetic acid (95% by mass) at 23°C	not resistant
Ketones	Acetone at 23°C	resistant
Other	Acetophenone at 23°C	resistant
Other	Acetyl chloride at 23°C	not resistant
Other	Acetylene at 23°C	resistant
Other	Acrylic acid at 23°C	not resistant
Other	Aliphatic amines at 23°C	resistant
Other	Aliphatic hydrocarbons at 23°C	resistant
Other	Alkylbenzenes at 23°C	resistant
Other	Allyl alcohol at 23°C	limited resistant, tests necessary to verify
Other	Aluminum acetate (saturated) at 23°C	resistant
Other	Aluminum chloride (10% by mass) at 23°C	resistant
Other	Aluminum hydroxide (saturated) at 23°C	resistant
Other	Aluminum salts of mineral acids (saturated) at 23°C	limited resistant, tests necessary to verify
Other	Aluminum trichloride (10% by mass) at 23°C	resistant
Other	Amino acids (saturated) at 23°C	resistant
Other	Ammonia at 23°C	limited resistant, tests necessary to verify
Other	Ammonium chloride (35% by mass) at 100°C	limited resistant, tests necessary to verify
Other	Ammonium chloride (35% by mass) at 23°C	resistant
Other	Ammonium salts of mineral acids (10% by mass) at 23°C	resistant
Other	Ammonium salts of mineral acids (10% by mass) at 50°C	limited resistant, tests necessary to verify
Other	Ammonium thiocyanate (saturated) at 23°C	resistant
Other	Amyl acetate at 100°C	not resistant
Other	Amyl acetate at 23°C	resistant
Other	Amyl alcohol at 23°C	resistant
Other	Aniline at 23°C	limited resistant, tests necessary to verify
Other	Anodizing liquid (HNO3/H2SO4) at 23°C	limited resistant, tests necessary to verify
Other	Antimony trichoride (saturated) at 23°C	not resistant
Other	Aqua Regia (HCl/HNO3) at 23°C	not resistant
Other	Aromatic hydrocarbons at 23°C	resistant
Other	ASTM 3 at 23°C	limited resistant, tests necessary to verify
Other	Bariumsalts of mineral acids at 23°C	limited resistant, tests necessary to verify
Other	Benzaldehyde at 23°C	limited resistant, tests necessary to verify
Other	Benzene at 23°C	resistant
Other	Benzene at 80°C	resistant
Other	Benzoic acid (20% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Benzoic acid (saturated) at 23°C	not resistant
Other	Benzyl alcohol at 23°C	limited resistant, tests necessary to verify
Other	Beverages at 23°C	resistant
Other	Bleaching agent (NaOCl) at 23°C	not resistant
Other	Boric acid (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Boron trifluoride at 23°C	not resistant
Other	Brake fluids (DOT 3/4) at 23°C	resistant
Other	Bromine water (saturated) at 23°C	not resistant
Other	Bromochlorodifluoromethane at 23°C	resistant
Other	Bromotrifluoromethane at 23°C	resistant
Other	Butadiene at 23°C	resistant
Other	Butane at 23°C	resistant
Other	Butanediols at 23°C	resistant
Other	Butanediols at >140°C	limited resistant, tests necessary to verify
Other	Butanols at 23°C	resistant
Other	Butene glycol at 23°C	resistant
Other	Butene glycol at >160°C	limited resistant, tests necessary to verify
Other	Butene-1 at 23°C	resistant
Other	Butter at 23°C	limited resistant, tests necessary to verify
Other	Butyl acetate at 23°C	resistant
Other	Butyl acrylate at 23°C	resistant
Other	Butyl glycolate at 23°C	resistant
Other	Butyl phthalate at 23°C	resistant
Other	Butyric acid (20% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Butyrolactone at 23°C	resistant
Other	Butyrolactone at >90°C	limited resistant, tests necessary to verify
Other	Calcium chloride (10% by mass) at 100°C	limited resistant, tests necessary to verify
Other	Calcium chloride (10% by mass) at 23°C	resistant
Other	Calcium chloride (alcoholic) (20% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Calcium chloride (saturated) at 100°C	not resistant
Other	Calcium chloride (saturated) at 23°C	resistant
Other	Calcium chloride (saturated) at 60°C	limited resistant, tests necessary to verify
Other	Calcium hydroxide (saturated) at 23°C	resistant
Other	Calcium hypochloride (saturated) at 23°C	not resistant
Other	Camphor (alcoholic) (50% by mass) at 23°C	resistant
Other	Caprolactam (50% by mass) at 23°C	resistant
Other	Caprolactam (50% by mass) at >150°C	limited resistant, tests necessary to verify
Other	Carbon disulfide at 23°C	resistant
Other	Carbon disulfide at 60°C	not resistant
Other	Carbon tetrachloride at 23°C	resistant
Other	Casein at 23°C	resistant
Other	Chloral hydrate at 23°C	not resistant
Other	Chloramines (10% by mass) at 23°C	not resistant
Other	Chlorinated biphenyls at 80°C	limited resistant, tests necessary to verify
Other	Chlorine water at 23°C	not resistant
Other	Chloroacetic acid (10% by mass) at 23°C	not resistant
Other	Chlorobenzene at 23°C	resistant
Other	Chlorobenzene at 50°C	resistant
Other	Chlorobromomethane at 23°C	limited resistant, tests necessary to verify
Other	Chlorodifluoroethane at 23°C	resistant
Other	Chlorodifluoromethane at 23°C	resistant
Other	Chlorofluoroethylene at 23°C	resistant
Other	Chloroform at 23°C	not resistant
Other	Chlorosulfonic acid (10% by mass) at 23°C	not resistant
Other	Chromic acid (1% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Chromic acid (10% by mass) at 23°C	not resistant
Other	Chromyl chloride at 23°C	not resistant
Other	cis-2-butene at 23°C	resistant
Other	Citric acid (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Cobalt salt (20% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Copper sulfate (10% by mass) at 23°C	resistant
Other	Copper(II) salt (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Cresols at 23°C	not resistant
Other	Cycloalcohols (incl their esters) at 23°C	resistant
Other	Cycloalkanes at 23°C	resistant
Other	Cycloalkanones at 23°C	resistant
Other	Decalin at 23°C	resistant
Other	Developer (photografic) at 23°C	resistant
Other	Dibutyl phthalate at 23°C	resistant
Other	Dibutyl phthalate at 60°C	resistant
Other	Dichlorobenzene at 23°C	resistant
Other	Dichloroethane at 23°C	resistant
Other	Dichloroethylene at 23°C	resistant
Other	Dichlorofluoromethane at 23°C	resistant
Other	Dichlorotetrafluoroethane at 23°C	resistant
Ethers	Diethyl ether at 23°C	resistant
Other	Diethylene glycol at 23°C	resistant
Other	Diethylene glycol at >140°C	not resistant
Other	Difluoromethane at 23°C	resistant
Other	Dimethyl acetamide at 23°C	resistant
Other	Dimethyl acetamide at >150°C	not resistant
Other	Dimethyl ether at 23°C	resistant
Other	Dimethylamine at 23°C	resistant
Other	Dimethylformamide at 23°C	resistant
Other	Dimethylformamide at 90°C	limited resistant, tests necessary to verify
Other	Dimethylsilane at 23°C	resistant
Other	Dimethylsulfoxide at 125°C	not resistant
Other	Dimethylsulfoxide at 23°C	resistant
Other	Dioctyl phtalate at 23°C	resistant
Other	Dioxan at 23°C	resistant
Other	Dioxan at 60°C	resistant
Other	Diphenyl ether at 80°C	resistant
Other	Dipropyl ether at 23°C	resistant
Other	Edible fats waxes and oils at 100°C	limited resistant, tests necessary to verify
Other	Electroplating bath (acidic) at 23°C	not resistant
Other	Electroplating bath (alkali) at 23°C	resistant
Other	Ethane at 23°C	resistant
Alcohols	Ethanol at 23°C	resistant
Other	Ethyl Acetate at 23°C	resistant
Other	Ethyl chloride at 23°C	resistant
Other	Ethylene at 23°C	resistant
Other	Ethylene carbonate at 100°C	not resistant
Other	Ethylene carbonate at 50°C	resistant
Other	Ethylene chlorohydrin at 23°C	limited resistant, tests necessary to verify
Other	Ethylene glycol at 100°C	not resistant
Other	Ethylene glycol at 23°C	resistant
Other	Ethylene oxide at 23°C	resistant
Other	Ethylene oxide at >80°C	not resistant
Other	Ethylenediamine at 23°C	resistant
Other	Fatty acids at 23°C	resistant
Other	Fatty alcohols at 23°C	resistant
Other	Fixer (photografic) at 23°C	resistant
Other	Fluorinated hydrocarbons at 70°C	resistant
Other	Fluorine at 23°C	not resistant
Other	Formaldehyde (30% by mass) at 23°C	resistant
Other	Formamide at 23°C	resistant
Other	Formamide at >150°C	not resistant
Other	Formic acid (10% by mass) at 23°C	not resistant
Other	Formic acid (10% by mass) at 50°C	not resistant
Other	Fruit juices at 23°C	limited resistant, tests necessary to verify
Other	Fuel; Diesel at 85°C	resistant
Other	Fuel; FAM 1A at 23°C	resistant
Other	Fuel; FAM 2A at 23°C	limited resistant, tests necessary to verify
Other	Fuel; Gasoline at 85°C	limited resistant, tests necessary to verify
Other	Fuel; LPG at 23°C	limited resistant, tests necessary to verify
Other	Furfural at 23°C	limited resistant, tests necessary to verify
Other	Furfuryl alcohol at 23°C	limited resistant, tests necessary to verify
Other	Glucose at 23°C	limited resistant, tests necessary to verify
Other	Glycerol at 170°C	limited resistant, tests necessary to verify
Other	Glycerol at 23°C	limited resistant, tests necessary to verify
Other	Glycolic acid (30% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Glycols at 23°C	limited resistant, tests necessary to verify
Other	Grease (based on ester oils) at <100°C	limited resistant, tests necessary to verify
Other	Grease (based on metal soaps) at <100°C	limited resistant, tests necessary to verify
Other	Grease (based on polyphenylester) at <100°C	limited resistant, tests necessary to verify
Other	Hardening oils at 23°C	resistant
Other	Heating oils at 23°C	resistant
Other	Heptane at 23°C	resistant
Other	Hexachlorobenzene at 80°C	resistant
Other	Hexachloroethane at 23°C	resistant
Other	Hexafluoroisopropanol at 23°C	not resistant
Other	Hexane at 23°C	resistant
Other	Hydraulic fluids at 100°C	resistant
Other	Hydrobromic acid (10% by mass) at 23°C	not resistant
Other	Hydrochloric acid (10% by mass) at 23°C	not resistant
Other	Hydrochloric acid (20% by mass) at 23°C	not resistant
Other	Hydrochloric acid (conc.% by mass) at 23°C	not resistant
Other	Hydrofluoric acid (40% by mass) at 23°C	not resistant
Other	Hydrofluoric acid (5% by mass) at 23°C	not resistant
Other	Hydrogen at 23°C	resistant
Other	Hydrogen peroxide (0.5% by mass) at 23°C	resistant
Other	Hydrogen peroxide (3% by mass) at 23°C	not resistant
Other	Hydrogen peroxide (30% by mass) at 23°C	not resistant
Other	Hydrogen sulfide (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Hydroiodic acid at 23°C	not resistant
Other	Hydroquinone (5% by mass) at 23°C	not resistant
Other	Impregnating oils at 23°C	resistant
Other	Ink at 23°C	resistant
Other	Iodine (alcoholic) at 23°C	not resistant
Other	Iron(III)chloride (acidic) (10% by mass) at 23°C	not resistant
Other	Iron(III)chloride (neutral) (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Iron(III)chloride (saturated) at 23°C	not resistant
Other	Iron(III)thiocyanate (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Isocyanates (aromatic) at 23°C	resistant
Other	Isooctane at 80°C	resistant
Other	Isopropanol at 23°C	resistant
Other	Isopropanol at 60°C	resistant
Other	Ketones (aliphatic) at 23°C	resistant
Other	Lactic acid at 10°C	resistant
Other	Lactic acid at 90°C	not resistant
Other	Lead acetate (10% by mass) at 23°C	resistant
Other	Linseed oil at 23°C	resistant
Other	Lithium bromide (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Lithium chloride (20% by mass) at 23°C	not resistant
Other	Lithium hydroxide (10% by mass) at 23°C	resistant
Other	Lithium hydroxide (10% by mass) at 80°C	not resistant
Other	Lubricating oil (gear) at <130°C	resistant
Other	Lubricating oil (hydraulics) at <130°C	resistant
Other	Lubricating oil (transformers) at <130°C	resistant
Other	Magnesium hydroxide (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Magnesium salts (10% by mass) at 23°C	resistant
Other	Maleic acid (25% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Maleic acid (saturated) at 23°C	resistant
Other	Manganese salts (10% by mass) at 23°C	resistant
Other	Mercury at 23°C	resistant
Other	Mercury(II)chloride (saturated) at 23°C	not resistant
Other	Methane at 23°C	resistant
Alcohols	Methanol at 23°C	limited resistant, tests necessary to verify
Other	Methyl acetate at 23°C	resistant
Other	Methyl chloride at 23°C	resistant
Other	Methyl ethyl ketone at 23°C	resistant
Other	Methyl formate at 23°C	resistant
Other	Methyl glycol at 23°C	resistant
Other	Methylamine at 23°C	resistant
Other	Methylaniline at 23°C	resistant
Other	Methylbromide at 23°C	resistant
Other	Methylene chloride at 23°C	limited resistant, tests necessary to verify
Other	Methylpyrrolidone at 23°C	resistant
Other	Milk at 23°C	limited resistant, tests necessary to verify
Other	n-Butyl ether at 23°C	resistant
Other	n-Butyl glycol at 23°C	resistant
Other	Naphtha at 23°C	resistant
Other	Naphthalene at 23°C	resistant
Other	Naphthalenesulfonic acids at 23°C	not resistant
Other	Naphthenic acids at 23°C	resistant
Other	Naphthols at 23°C	not resistant
Other	Nickel nitrate (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Nickel salts (10% by mass) at 23°C	resistant
Other	Nitric acid (2% by mass) at 23°C	not resistant
Other	Nitric acid (conc.% by mass) at 23°C	not resistant
Other	Nitrobenzene at 23°C	limited resistant, tests necessary to verify
Other	Nitrobenzene at >100°C	not resistant
Other	Nitrocellulose lacquers (alcoholic) at 23°C	limited resistant, tests necessary to verify
Other	Nitrocellulose lacquers (non-alcoholic) at 23°C	resistant
Other	Nitrogen oxides at 23°C	limited resistant, tests necessary to verify
Other	Nitromethane at 23°C	limited resistant, tests necessary to verify
Other	Nitropropane at 23°C	limited resistant, tests necessary to verify
Other	Nitrotoluene at 23°C	limited resistant, tests necessary to verify
Other	Nitrotoluene at >100°C	not resistant
Other	Nitrous fumes at 23°C	limited resistant, tests necessary to verify
Other	Nitrous oxide at 23°C	resistant
Other	Octane at 23°C	resistant
Other	Octene at 23°C	resistant
Other	Oil (Burmah TAF 21) at 23°C	resistant
Other	Oil (Castrol TAF) at 23°C	resistant
Other	Oil (Shell 10W40) at 23°C	resistant
Other	Oil (Shell Dexron ATF) at 23°C	resistant
Other	Oil (Shell Spirax EP90) at 23°C	limited resistant, tests necessary to verify
Other	Oil (transformers, switchgear) at 50°C	resistant
Other	Oils (vegatable, mineral, ethereal) at 23°C	resistant
Other	Oleic acid at 23°C	resistant
Other	Oleum (H2SO4+SO3) at 23°C	not resistant
Other	Oxalic acid (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Oxalic acid (10% by mass) at 80°C	not resistant
Other	Ozone at 23°C	not resistant
Other	Paint solvents at 23°C	resistant
Other	Palmatic acid at 80°C	resistant
Other	Paraffin at 23°C	resistant
Other	Pentasin CHF 11 (S) at 23°C	resistant
Other	Pentasin CHF 7.1 at 23°C	limited resistant, tests necessary to verify
Other	Peracetic acid at 23°C	not resistant
Other	Petroleum at 23°C	resistant
Other	Petroleum ether and solvents at 80°C	resistant
Other	Phenol (alc. sol.) (70% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Phenol (conc.% by mass) at 23°C	not resistant
Other	Phenol at >40°C	not resistant
Other	Phenyl ether at 23°C	not resistant
Other	Phenyl ethyl alcohol at 23°C	limited resistant, tests necessary to verify
Other	Phenyl ethyl alcohol at >160°C	not resistant
Other	Phosphate sol. (neutral, alkaline) (10% by mass) at 23°C	resistant
Other	Phosphine at 23°C	resistant
Other	Phosphoric acid (10% by mass) at 23°C	not resistant
Other	Phosphoric acid (conc.% by mass) at 23°C	not resistant
Other	Phthalic acid (saturated) at 23°C	limited resistant, tests necessary to verify
Other	Polyols at 23°C	resistant
Other	Potassium bromide (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Potassium chloride (10% by mass) at 23°C	resistant
Other	Potassium chloride (10% by mass) at 70°C	resistant
Other	Potassium dichromate (5% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Potassium hydroxide (50% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Potassium nitrate (10% by mass) at 23°C	resistant
Other	Potassium permanganate (1% by mass) at 23°C	not resistant
Other	Potassium thiocyanate (saturated) at 23°C	not resistant
Other	Propane at 23°C	resistant
Other	Propanol at 23°C	resistant
Other	Propanol at >100°C	not resistant
Other	Propene at 23°C	resistant
Other	Propionic acid (5% by mass) at 23°C	resistant
Other	Propionic acid (50% by mass) at 23°C	not resistant
Other	Pyridine at 23°C	resistant
Other	Pyridine at 80°C	limited resistant, tests necessary to verify
Other	Pyrrolidone at 23°C	resistant
Other	Pyruvic acid (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Rainwater (acidic) at 23°C	resistant
Other	Refrigerator oil at 23°C	resistant
Other	Resorcinol (alcoholic) (50% by mass) at 23°C	not resistant
Other	Road salts at 23°C	resistant
Other	SAE 80 at 23°C	resistant
Other	Salicylic acid (saturated) at 23°C	resistant
Other	Seawater at 23°C	resistant
Other	Silane at 23°C	resistant
Other	Silicone oils at <80°C	resistant
Other	Silicone oils at >100°C	limited resistant, tests necessary to verify
Other	Silver nitrate (10% by mass) at 23°C	resistant
Other	Soap solution (10% by mass) at 80°C	limited resistant, tests necessary to verify
Other	Sodium bromide (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Sodium carbonate (10% by mass) at 23°C	resistant
Other	Sodium chlorate (10% by mass) at 23°C	resistant
Other	Sodium chloride (10% by mass) at 23°C	resistant
Other	Sodium chlorite (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Sodium cyanide (10% by mass) at 23°C	resistant
Other	Sodium dichromate (10% by mass) at 23°C	resistant
Other	Sodium dodecylbenzenesulfonate at 23°C	resistant
Other	Sodium hydrogen carbonate (10% by mass) at 23°C	resistant
Other	Sodium hydrogen sulfate (10% by mass) at 23°C	resistant
Other	Sodium hydrogen sulfite (10% by mass) at 23°C	resistant
Other	Sodium hydroxide (10% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Sodium hydroxide (10% by mass) at 80°C	not resistant
Other	Sodium hydroxide (50% by mass) at 23°C	not resistant
Other	Sodium hypochlorite (10% by mass) at 23°C	not resistant
Other	Sodium hypophosphite (10% by mass) at 23°C	resistant
Other	Sodium lauryl sulfate (30% by mass) at 23°C	resistant
Other	Sodium lignosulfonate at 23°C	resistant
Other	Sodium nitrilotriacetate (10% by mass) at 23°C	resistant
Other	Sodium oleate at 23°C	resistant
Other	Sodium pentachlorophenolate at 23°C	resistant
Other	Sodium pyrosulfite (10% by mass) at 23°C	resistant
Other	Sodium salts (nitrate, sulfate) (10% by mass) at 23°C	resistant
Other	Soldering fluid at 23°C	not resistant
Other	Steam at 23°C	limited resistant, tests necessary to verify
Other	Stearate at 23°C	resistant
Other	Stearic acid at 23°C	resistant
Other	Styrene at 80°C	resistant
Other	Sulfonates (10% by mass) at 23°C	resistant
Other	Sulfur at 23°C	resistant
Other	Sulfur dioxide (dry) at 23°C	resistant
Other	Sulfur dioxide (moist) at 23°C	limited resistant, tests necessary to verify
Other	Sulfur hexafluoride at 23°C	resistant
Other	Sulfuric acid (2% by mass) at 23°C	not resistant
Other	Sulfuric acid (conc.% by mass) at 23°C	not resistant
Other	Sulfurous acid (saturated) at 23°C	limited resistant, tests necessary to verify
Other	Tartaric acid (10% by mass) at 23°C	resistant
Other	Tartaric acid (50% by mass) at 23°C	limited resistant, tests necessary to verify
Other	Tetrachloroethylene at 23°C	limited resistant, tests necessary to verify
Other	Tetrachloroethylene at 80°C	not resistant
Other	Tetrachloromethane at 23°C	resistant
Other	Tetrafluoromethane at 23°C	resistant
Other	Tetrafluoropropanol at 23°C	not resistant
Other	Tetrahydrofuran at 23°C	resistant
Other	Tetralin at 23°C	resistant
Other	Tetramethylenesulfone at 23°C	resistant
Other	Toluene at 100°C	resistant
Hydrocarbons	Toluene at 23°C	resistant
Other	Transformer oil at 23°C	resistant
Other	Trichloroacetic acid (50% by mass) at 23°C	not resistant
Other	Trichloroacetic acid ethyl ester at 23°C Temperature Settings for Injection Molding Mold Temperature Stanyl® can be used with a wide range of tool temperatures (80 - 120°C / 176 - 248°F). However, to achieve optimal mechanical properties and stable dimensional parts, it is recommended to apply a tooling temperature at the higher side (120°C / 248°F). Due to the fast crystallization speed of Stanyl®, the mold temperature has less influence on the cycle-time. Barrel Temperature Optimal settings are governed by barrel size and residence time. Due to the high melting point of Stanyl® this temperature should be set high enough to provide a homogeneous melt without getting too near to the degradation temperature of 330°C / 626°F. A flat or rising temperature profile is recommended. Mold/Tool Measured melt Nozzle Front Center Rear 80-120°C 176-248°F 310-320°C 590-608°F 300-320°C 572-608°F 300-320°C 572-608°F 300-320°C 572-608°F 280-320°C 536-608°F Melt Temperature To generate a good and homogeneous melt, the melt temperature should always be above 305°C / 581°F. Optimal mechanical properties will be achieved at melt temperatures between 305-320°C / 581-608°F. We advise to frequently measure the melt temperature by pouring the melt in a Teflon cup and inserting a thermo probe into the melt. Hot Runner Temperature A hot runner temperature set to the same level as the nozzle temperature should work fine and not lead to excessive overheat of the Stanyl® grade. When starting up, an increased tip temperature may be necessary to overcome a frozen nozzle. Stress-Strain (dry) Tensile Fatigue 8Hz, T, R=0.1 (dry) General Processing Settings for Injection Molding Screw Rotation Speed To realize a good and homogeneous melt, it is advised to set a screw rotation speed resulting in a plasticizing time that is just within the cooling time. The rotational speed of the screw should not exceed 6500 / D RPM (where D is the screw diameter in mm). Back Pressure Back pressure should be between 20-100 bars effective. Keep it low in order to prevent nozzle-drooling, excessive shear heating and long plasticizing times. Decompression In order to prevent nozzle drool after plasticizing and retracting the nozzle from the mold, a short decompression stroke can be used. However, to prevent oxidation of the melt, which may result in surface defects on the parts, it is recommended to keep this as short as possible. Injection Speed Moderate to high injection speeds are required in order to prevent premature crystallization in the mold during injection phase and to obtain a better surface finish. The recommended injection speed profile goes from fast (for sprue and runner filling) to medium (for part filling) to avoid excessive shear heating and allow air to escape from the mold. Adequate mold venting is required to avoid burning at the end of the flow path (due to diesel effect). Injection Pressure The real injection pressure is the result of the flowability of the material (crystallization rate, flow length, wall thickness, filling speed). The set injection pressure should be high enough to maintain the set injection speed (use set injection pressure higher than the peak pressure if possible). Tooling air vents must be effective to allow optimum filling pressure and prevent burn marks. Holding Time Effective holding time is determined by part thickness and gate size. Holding time should be maintained until a constant product weight is achieved.Due to its fast solidification, holding time for Stanyl® is short compared to other engineering plastics. Holding Pressure The most adequate holding pressure is the level whereby no sinkmarks or flash are visible. A too high holding pressure can lead to stresses in the part. Cooling Time Actual cooling time will depend on part geometry and dimensional quality requirements as well as the tool design (gate size). Due to the fast crystallization of Stanyl®, a short cooling time is possible. Melt Residence Time for Injection Molding The optimal Melt Residence Time (MRT) for Stanyl® TW272B6 is ≤ 4 minutes with preferably at least 50% of the maximal shot volume used. The MRT should not exceed 6 minutes. A formula to estimate the MRT is described below: 𝑀𝑅𝑇 = (∏D³ρ/m) * (t/60) Whereas: MRT = Melt Residence Time [minutes] D = Screw Diameter [cm] p = Melt Density [g/cm3] m = Shot Weight [g] t = Cycle Time [s] Please note: In the calculation above, the hotrunner volume has not been taken into account. When a hotrunner is part of the setup, please add the hotrunner volume to the calculation. Startup/Shut Down/Cleaning for Injection Molding Production has to be started and stopped with a clean machine. Cleaning can be done with PA6-GF or PA66-GF, applicable cleaning agents or HDPE. Hot runners can also be cleaned and put out of production cleaning them with PA6-GF or PA66-GF. Production Breaks for Injection Molding During production breaks longer than a few minutes, we advise emptying the barrel. The temperature of the barrel and the hot runner [if applicable] should be reduced to a level far enough below the melting point of the compound in order to stop decomposition of the compound. When the hot runner, nozzle, or even the screw is blocked, be aware that under these conditions a sudden outburst of molten material can take place. Always wear personal safety protections for hand/eye/body. Packaging & Availability Packaging Type Bags, Boxes, Silos, Super Sacks Storage & Handling Material Handling for Injection Molding Storage In order to prevent moisture pick up and contamination, supplied packaging should be kept closed and undamaged. For the same reason, partial bags should be sealed before re-storage. Advisable is storage at room temperature. Packaging Stanyl® grades are supplied in airtight, moisture-proof packaging. Moisture Content as Delivered Stanyl® TW272B6 is packaged at a moisture level ≤ 0.1 w%. Conditioning Before Molding To prevent moisture condensing on granules, bring cold granules up to ambient temperature in the molding shop while keeping the packaging closed. Moisture Content Before Molding Stanyl® TW272B6 is delivered at molding moisture specification (≤ 0.1 w%). We advise to pre-dry to overcome the fluctuation from package to package and to prevent surface-defects to a level of 0.05 w% (see drying section below). Furthermore, pre-drying is required in case the material is exposed to moisture before molding (prolonged storage or open/damaged packaging). Moisture content can be checked by water evaporation methods or manometric methods (ISO 15512). Drying  Stanyl® grades are hygroscopic and absorb moisture from the air relatively quickly. Moisture absorption is fully reversible under the following drying conditions without compromising material quality. Preferred driers are de-humidified driers with dew points maintained between -30 and -40°C / -22 and -40°F. Vacuum driers with N₂ purge can also be used. Hot air ovens or hopper driers are not suitable for pre-drying Stanyl® grades; the use of such driers may result in non-optimum performance.  Moisture content Time Temperature [%] [h] [°c] [°F] 0.1 - 0.2 and as delivered 2 80 176 0.2 - 0.5 4-8 80 176 >0.5 <100 or 24 80 105 176 221 Regrind Regrind can be used taking into account that this regrind must be clean/low dust content/not thermally degraded/dry, of same composition and similar particle size as the original material. The acceptable level of regrind depends on the application requirements (e.g. UL Yellow Card). Be aware that regrind can cause some small color deviations.