Zytel® ST811HS BK038
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Zytel® ST811HS is a flexible, heat stabilized Super Tough polyamide 6 resin developed for extrusion and injection molding applications such as cable and rope jacketing, hose inner cores and fasteners and ski binding parts.
Polymer Name: Polyamide 6 (PA 6)
Processing Methods: Injection Molding, Extrusion, Coating
Flexural Modulus: 850.0 MPa
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Zytel® ST811HS BK038 Features & Benefits
Materials Features
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Applications
Plastics & Elastomers End Uses
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Properties
Chemical Resistance
Color
Part Marking Code
Resin ID
Physical Properties
| Value | Units | Test Method / Conditions | |
| Molding Shrinkage - Parallel | 0.9/- | % | ISO 294-4, 2577 |
| Molding Shrinkage - Normal | 1.4/- | % | ISO 294-4, 2577 |
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Tensile Modulus | 900/400 | MPa | ISO 527-1/-2 |
| Yield Stress | 31/- | MPa | ISO 527-1/-2 |
| Yield Strain | 29/- | % | ISO 527-1/-2 |
| Stress at Break (50 mm/min) | 44/- | MPa | ISO 527-1/-2 |
| Strain at Break (50 mm/min) | 230/- | % | ISO 527-1/-2 |
| Flexural Modulus | 850/- | MPa | ISO 178 |
| Charpy Impact Strength (23°C) | No Break/- | kJ/m² | ISO 179/1eU |
| Charpy Notched Impact Strength (23°C) | 80/- | kJ/m² | ISO 179/1eA |
| Charpy Notched Impact Strength (-40°C) | 12/- | kJ/m² | ISO 179/1eA |
| Izod Notched Impact Strength (23°C) | 65/- | kJ/m² | ISO 180/1A |
| Izod Notched Impact Strength (-40°C) | 13/- | kJ/m² | ISO 180/1A |
| Izod Impact Strength (23°C) | No Break/- | kJ/m² | ISO 180/1U |
| Poisson's Ratio | 0.45/0.47 | - | - |
Thermal Properties
| Value | Units | Test Method / Conditions | |
| Melting Temperature (10°C/min) | 218/- | °C | ISO 11357-1/-3 |
| Glass Transition Temperature (10°C/min) | 50/0 | °C | ISO 11357-1/-2 |
| Temperature of Deflection Under Load(1.8 MPa) | 40/- | °C | ISO 75-1/-2 |
| Coefficient of Linear Thermal Expansion - Parallel | 130/- | E-6/K | ISO 11359-1/-2 |
| Coefficient of Linear Thermal Expansion - Normal | 140/- | E-6/K | ISO 11359-1/-2 |
Flammability
| Value | Units | Test Method / Conditions | |
| FMVSS Class | B | - | ISO 3795 (FMVSS 302) |
| Burning Rate (1 mm, Thickness) | max. 80 | mm/min | ISO 3795 (FMVSS 302) |
Other Properties
| Value | Units | Test Method / Conditions | |
| Humidity Absorption (2 mm) | 2.3/- | % | Sim. to ISO 62 |
| Density | 1050/- | kg/m³ | ISO 1183 |
Processing Information (Extrusion)
| Value | Units | Test Method / Conditions | |
| Melt Temperature Range | 235 - 250 | °C | - |
| Processing Moisture Content | ≤0.06 | % | - |
| Melt Temperature Optimum | 240 | °C | - |
| Drying Time (Dehumidified Dryer) | 4.0 - 6.0 | h | - |
| Drying Temperature | ≤60 | °C | - |
Processing Information (Injection Molding)
| Value | Units | Test Method / Conditions | |
| Drying Temperature | 60 | °C | - |
| Drying Recommended | Yes | - | - |
| Drying Time (Dehumidified Dryer) | 2.0 - 4.0 | h | - |
| Processing Moisture Content | ≤0.2 | % | - |
| Melt Temperature Optimum | 270 | °C | - |
| Min. Melt Temperature | 260 | °C | - |
| Max. Melt Temperature | 280 | °C | - |
| Max. Screw Tangential Speed | 0.3/- | m/s | - |
| Mold Temperature Optimum | 70 | °C | - |
| Min. Mold Temperature | 50 | °C | - |
| Max. Mold Temperature | 90 | °C | - |
| Hold Pressure Range | 50 - 100 | MPa | - |
| Hold Pressure Time | 4 | s/mm | - |
| Ejection Temperature | 190 | °C | - |
Chemical Resistance
| Chemical Type | Chemical Name | Resistance |
| Acids | Acetic Acid (5% by mass) (23°C) | Probably Resistant |
| Acids | Chromic Acid solution (40% by mass) (23°C) | Not Recommended |
| Acids | Citric Acid solution (10% by mass) (23°C) | Probably Resistant |
| Acids | Hydrochloric Acid (36% by mass) (23°C) | Not Recommended |
| Acids | Lactic Acid (10% by mass) (23°C) | Probably Resistant |
| Acids | Nitric Acid (40% by mass) (23°C) | Not Recommended |
| Acids | Sulfuric Acid (38% by mass) (23°C) | Not Recommended |
| Acids | Sulfuric Acid (5% by mass) (23°C) | Not Recommended |
| Alcohols | Ethanol (23°C) | Probably Resistant |
| Alcohols | Isopropyl alcohol (23°C) | Probably Resistant |
| Alcohols | Methanol (23°C) | Probably Resistant |
| Bases | Ammonium Hydroxide solution (10% by mass) (23°C) | Probably Resistant |
| Bases | Sodium Hydroxide solution (1% by mass) (23°C) | Probably Resistant |
| Bases | Sodium Hydroxide solution (35% by mass) (23°C) | Not Recommended |
| Ethers | Diethyl ether (23°C) | Probably Resistant |
| Hydrocarbons | iso-Octane (23°C) | Probably Resistant |
| Hydrocarbons | n-Hexane (23°C) | Probably Resistant |
| Hydrocarbons | Toluene (23°C) | Probably Resistant |
| Ketones | Acetone (23°C) | Probably Resistant |
| Mineral oils | Insulating Oil (23°C) | Probably Resistant |
| Mineral oils | SAE 10W40 multigrade motor oil (130°C) | Not Recommended |
| Mineral oils | SAE 10W40 multigrade motor oil (23°C) | Probably Resistant |
| Mineral oils | SAE 80/90 hypoid-gear oil (130°C) | Not Recommended |
| Other | 1% nonylphenoxy-polyethyleneoxy ethanol in water (23°C) | Probably Resistant |
| Other | 50% Oleic acid + 50% Olive Oil (23°C) | Probably Resistant |
| Other | DOT No. 4 Brake fluid (130°C) | Not Recommended |
| Other | Ethyl Acetate (23°C) | Probably Resistant |
| Other | Ethylene Glycol (50% by mass) in water (108°C) | Not Recommended |
| Other | Hydrogen peroxide (23°C) | Not Recommended |
| Other | Phenol solution (5% by mass) (23°C) | Not Recommended |
| Other | Water (23°C) | Probably Resistant |
| Other | Water (90°C) | Not Recommended |
| Salt solutions | Sodium Carbonate solution (2% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Carbonate solution (20% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Chloride solution (10% by mass) (23°C) | Probably Resistant |
| Salt solutions | Sodium Hypochlorite solution (10% by mass) (23°C) | Not Recommended |
| Salt solutions | Zinc Chloride solution (50% by mass) (23°C) | Not Recommended |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (>90°C) | Not Recommended |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (23°C) | Probably Resistant |
| Standard Fuels | Diesel fuel (pref. ISO 1817 Liquid F) (90°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 1 - E5 (60°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 2 - M15E4 (60°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 3 - M3E7 (60°C) | Probably Resistant |
| Standard Fuels | ISO 1817 Liquid 4 - M15 (60°C) | Probably Resistant |
| Standard Fuels | Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C) | Probably Resistant |
| Standard Fuels | Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C) | Probably Resistant |
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Zytel® ST811HS BK038
DuPont