A. Schulman Alcryn® 2250 UT Melt Processable Rubber

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A. Schulman Alcryn® 2250 UT Melt Processable Rubber
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	Alcryn melt-processable rubber (MPR) is a true rubber, based on a partially cross-linked, chlorinated olefin interpolymer alloy. Alcryn is designed for the manufacture of rubber parts with high productivity on thermoplastic processing equipment. Applications: Window and door weatherstripping (and other complex profile extrusions) Soft handles and grips Molded seals and gaskets Injection-molded and co-injection molded parts Blow-molded parts Tubing and hose Wire and cable jackets Coated fabrics and sheet goods Information provided by Advanced Polymer Alloys Former product line of Advanced Polymer Alloys (APA), acquired by A. Schulman in 2014.
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Physical Properties	Original Value	Comments

Specific Gravity	1.06 g/cc	ASTM D471; ISO 2781
Viscosity	115000 cP @Shear Rate 300 1/s, Temperature 190 °C	ASTM D3835

Mechanical Properties	Original Value	Comments
Hardness, Shore A	45	After 7 days at 257°F (125°C); ASTM D573; ISO 188
	47	ASTM D2240; ISO 48
Tensile Strength, Ultimate	940 psi	After 7 days at 257°F (125°C); ASTM D573; ISO 188
	1000 psi	ASTM D412; ISO 37
Elongation at Break	420 %	ASTM D412; ISO 37
	450 %	After 7 days at 257°F (125°C); ASTM D573; ISO 188
100% Modulus	0.240 ksi @Strain 100 %	After 7 days at 257°F (125°C); ASTM D573; ISO 188
	0.280 ksi @Strain 100 %	ASTM D412; ISO 37
Graves Tear Strength	110 pli @Temperature 23.9 °C	Die C; ASTM D624
Taber Abrasion, mg/1000 Cycles	5.0	Cs-17 Wheel, 1000 g Load; ASTM D3389
Compression Set	56 % @Temperature 100 °C	22 hrs.; ASTM D395; ISO 815
	15 % @Temperature 24.0 °C, Time 79200 sec	ASTM D395; ISO 815
Tensile Set	7.0 %	ASTM D412
Torsional Stiffness	1.9981 MPa	At 75°F (24°C); ASTM D1043
	2.6182 MPa	At -4°F (-20°C); ASTM D1043

Thermal Properties	Original Value	Comments
Brittleness Temperature	-132 °F	ASTM D746; ISO 812
Clash Berg Stiffness Temperature	-78.0 °F	At 10,000 psi (69 Mpa); ASTM D1043

Processing Properties	Original Value	Comments
Processing Temperature	330 °F

Descriptive Properties
Fluid Resistance - Volume Change, % (ASTM D471)	24	After 7 Days in ASTM Ref. Fuel No. B at 75°F (24°C)
	32	After 7 Days in IRM 903 Oil No.3 at 212°F (100°C)
	-39	After 7 Days in ASTM Oil No.1 at 212°F (100°C)
	7	After 7 Days in Water at 212°F (100°C)

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