Manifattura Cattaneo POM c

Identification & Functionality

Polymer Name

Polyacetal Copolymer (POM)

Technologies

Plastics

Product Families

Plastics — Parts, Shapes & Films

Features & Benefits

Labeling Claims

Food Contact Acceptable

Materials Features

Alkali Resistant,

Creep Resistant,

Dimensional Stability,

Excellent Dielectric Properties,

Excellent Electrical Resistance,

Excellent Hydrolysis Resistance,

Excellent Mechanical Strength,

Excellent Toughness,

Food Contact Acceptable,

Good Impact Strength,

Good Machinability,

Good Sliding Properties,

High Hardness,

High Stiffness,

High Thermo-Oxidative Stability,

Wear Resistant

Characteristics

• High mechanical strength, rigidity and hardness
• Excellent ductility and tenacity (elastic memory)
• Good creep resistance
• High impact resistance, even at low temperatures
• Very good dimensional stability
• Good sliding properties and wear resistance
• Excellent machinability on machine tools
• Good dielectric and electrical insulation properties
• Physiologically inert (suitable for contact with food)
• It is not self-extinguishing

Applications & Uses

Markets

Automotive & Transportation,

Consumer Goods,

Electrical & Electronics,

Industrial

Applications

Consumer Goods — Appliances & Electronics

Automotive & Transportation — Automotive

Cooling & Climate,

Fuel Systems,

Interior

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts,

Other Industrial Applications

Consumer Goods — Lawn & Garden

Electrical & Electronics — Parts & Components

Housings & Enclosures,

Other Parts & Components

Plastics & Elastomers End Uses

Automotive Fuel Filler Neck Pipes,

Automotive Interior Parts,

Doors,

Housings,

Pumps,

Valves,

Windows

Application

POM C is suitable for mechanical machining on automatic lathes and is particularly recommended for the construction of precision parts

Properties

Color

Black,

Natural

Physical Form

Rods,

Sheets

Physical Properties

	Value	Units	Test Method / Conditions
Specific Gravity	1.41	g/cm3	ISO 1183
Water (Absorption At Saturation)	0.85	%	ISO 62
Moisture (Absorption At 23°C - 50% RH)	0.2	%	ISO 62

Mechanical Properties

	Value	Units	Test Method / Conditions
Yield Strength	63	MPa	ISO 527
Rockwell Hardness	84	Scale M	ISO 2039-2
Elongation (Yield)	10	%	ISO 527
Elongation (Break)	33	%	ISO 527
Tensile Modulus	2800	MPa	ISO 527
IMPact Strength (Un-Notched)	280	KJ /m2	ISO 179
IMPact Strength (Notch)	8	KJ /m2	ISO 179
Flexural Strength (3.5%)	89	MPa	ISO 178
Flexural Modulus	2500	MPa	ISO 178
Compressive Stress (1% Strain-23°C)	19	MPa	ISO 604
Poisson'S Ratio	0.43	—	Abs

Thermal Properties

	Value	Units	Test Method / Conditions
Maximum Operating Temperature	115	°C	—
Heat Deflection Temperature (0.45 MPa)	156	°C	ISO 75
Heat Deflection Temperature (1.81 MPa)	105	°C	ISO 75
Thermal Conductivity (23°C)	0.31	W/(K*m)	DIN 52612
Coef. Of Linear Thermal Expansion (23 To 100°C)	110 - 110	μm	ASTM D696

Typical Properties

	Value	Units	Test Method / Conditions
Bondability	Bonding and painting are possible after special surface treatment.	—	—
Oxygen Limit Index	15	%	ISO 4589
UV Resistance	Resistance to UV exposure is reached with the pigmentation or specific additive.	—	—

Electrical Properties

	Value	Units	Test Method / Conditions
Volume Resistance	min.10^12	Ω	IEC 60093
Surface Resistance	10^16	Ω	IEC 60094
Dielectric Constant (1 MHZ)	3.9	abs	IEC 60250
Dielectric Loss Factor (1 MHZ)	0.007	tan	IEC 60250
Dielectric Witch (2mm)	22	KV/mm	IEC 60243

Flammability

	Value	Units	Test Method / Conditions
Flammability	HB-V2	—	UL 94

Tribological Properties

	Value	Units	Test Method / Conditions
Static Coef. Of Friction On Polished Steel	0.14	abs	MPC test
Dynamic Coef. Of Friction On Polished Steel	0.21	abs	MPC test
Pv Limit Without Lubrication	0.15	MPa	MPC test V = 0.5 m / s MPC
Wear Coefficient On Hardened Polished Steel	1.5 - 2.8	μm/s	test PV = 0.1 MPa * m / s
Maximum Pressure	18	MPa	MPC test

Regulatory & Compliance

Food Contact Safety (FDA Compliance)

Yes (Test Method -DM 21.3.73)