A. Schulman Alcryn® 4070 NC Melt-Processible Rubber

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A. Schulman Alcryn® 4070 NC Melt-Processible Rubber (discontinued **)
Categories:	Polymer; Thermoplastic; Elastomer, TPE; Thermoplastic Elastomer, Melt-Processible Rubber
Material Notes:	Alcryn® is a true thermoplastic elastomer, based on a partially cross-linked, chlorinated olefin interpolymer alloy. It is designed for the manufacture of rubber parts with high productivity on thermoplastic processing equipment. 4000 series characteristics: moderate flow in general plastics processing; not recommended for injection molding; excellent for complex extrusions; black grades have excellent weather resistance. Former product line of Advanced Polymer Alloys (APA), acquired by A. Schulman in 2014.
Key Words:	Chlorinated Olefin Interpolymer Alloy; Advanced Polymer Alloys; Thermoplastic Elastomer (TPE)
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Physical Properties	Metric	English	Comments

Density	1.25 g/cc	0.0452 lb/in³	ASTM D471
Viscosity	500000 cP @Shear Rate 300 1/s, Temperature 190 °C	500000 cP @Shear Rate 300 1/s, Temperature 374 °F	ASTM D3835

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	70	70	ASTM D2240
Tensile Strength, Yield	8.80 MPa	1280 psi	ASTM D412
Elongation at Break	440 %	440 %	ASTM D412
Tensile Modulus	0.00390 GPa	0.566 ksi	ASTM D412
Shear Modulus	0.00240 GPa	0.348 ksi	ASTM D1043
Graves Tear Strength	39.0 kN/m	223 pli	(Die C); ASTM D624
Taber Abrasion, mg/1000 Cycles	4.0	4.0	CS-17 Wheel, 1000g load; ASTM D3389
Compression Set	74 % @Temperature 100 °C	74 % @Temperature 212 °F	22 hr at 100°C; ASTM D395
	21 % @Temperature 24.0 °C, Time 79200 sec	21 % @Temperature 75.2 °F, Time 22.0 hour	ASTM D395

Thermal Properties	Metric	English	Comments
Brittleness Temperature	-60.0 °C	-76.0 °F	ASTM D746
Clash Berg Stiffness Temperature	-20.0 °C	-4.00 °F	69 MPa; ASTM D1043

Processing Properties	Metric	English	Comments
Processing Temperature	166 °C	331 °F	ASTM D3835

**
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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