AlphaGary Evoprene™ 025 Standard SBS Thermoplastic Elastomer Compound

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AlphaGary Evoprene™ 025 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	1.00 g/cc	1.00 g/cc	ISO 2782
Viscosity Measurement	21 @Temperature 150 °C	21 @Temperature 302 °F	Kg/cm²; Macklow-Smith extrusion rheometer

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	38	38	ISO 868
Tensile Strength	4.40 MPa	638 psi	ISO 37
Elongation at Break	1010 %	1010 %	ISO 37
100% Modulus	0.800 MPa @Strain 100 %	116 psi @Strain 100 %	ISO 37
Tear Strength	20.0 kN/m	114 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

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PGARY9603 / 140396

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