AlphaGary Evoprene™ 068 Standard SBS Thermoplastic Elastomer Compound

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AlphaGary Evoprene™ 068 Standard SBS Thermoplastic Elastomer Compound (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Styrenic TPE
Material Notes:	The Evoprene™ Standard is a styrene-butadiene -styrene based thermoplastic elastomer. Applications: extruded door, window and furniture seals and rubbing strips, mats, bump stops, grommets, coat hanger pads, toy components Alphagary is part of Orbia.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.48 g/cc	1.48 g/cc	ISO 2782
Viscosity Measurement	35 @Temperature 150 °C	35 @Temperature 302 °F	Kg/cm²; Macklow-Smith extrusion rheometer

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	61	61	ISO 868
Tensile Strength	3.50 MPa	508 psi	ISO 37
Elongation at Break	600 %	600 %	ISO 37
100% Modulus	1.50 MPa @Strain 100 %	218 psi @Strain 100 %	ISO 37
Tear Strength	23.0 kN/m	131 pli	ISO 34-B
Compression Set	25 % @Temperature 22.0 °C, Time 259000 sec	25 % @Temperature 71.6 °F, Time 72.0 hour	ISO 815

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	55.0 - 60.0 °C	131 - 140 °F
Minimum Service Temperature, Air	-60.0 °C	-76.0 °F

Descriptive Properties
Bonds with	Polystyrene
Chemical Resistance	Acetone		Moderate
	Acids up to 80%		Moderate
	Alcohol		Good
	Alkalis		Good
	Brake fluid		Moderate
	Chlorinate solvents		Poor
	Diesel		Poor
	Ethylene glycol		Excellent
	Gasoline		Poor
	Salt solution		Good
	Soda lye		Moderate
	Water, 23°C		Good
	Water, 95°C		Poor
Ozone Resistance	Fail - Crack		100 pphm / 200 hrs / 20% strain
Transparency	Opaque

**
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PGARY9611 / 140404

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