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Alcryn® 2170BK BLK is a high‑flow melt‑processable rubber offering excellent tear strength, wear resistance, and chemical resistance for automotive, wire, and industrial parts.
Alcryn® 2170BK BLK delivers rubberlike elasticity without vulcanization, helping manufacturers reduce cycle times, scrap, and production costs compared to conventional rubber compounds. This grade is designed for applications requiring excellent tear strength, wear resistance, chemical resistance, and high friction, while allowing efficient processing on standard thermoplastic equipment.
Density: 1.21 g/cm³
Density, specific gravity: 1.21
Change in volume (in reference fuel B, 27 °C, 168 hrs): 17%
Change in volume (in ASTM #1 oil, 100 °C, 168 hrs): -16%
Change in volume (in IRM 903 oil, 100 °C, 168 hrs): 6%
Change in volume (in water, 100 °C, 168 hrs): 19%
Melt viscosity (190°C, 300 sec−1): 275 Pa·s
Tensile strength (23°C): 122%
Tensile stress at 100% (1.90 mm): 2.99 MPa
Tensile stress at 100% (125°C, 1.90 mm): 3.50 MPa
Tensile stress at yield (1.90 mm): 8.60 MPa
Tensile stress at yield (125°C, 1.90 mm): 5.50 MPa
Tensile strength at yield (1.90 mm): 8.60 MPa
Tensile strength at yield (125°C, 1.90 mm): 5.50 MPa
Tensile strain at break (1.90 mm): 600%
Tensile strain at break (125°C, 1.90 mm): 220%
Torsion modulus (24°C, 1.9 mm): 2.2 MPa
Torsion modulus (−20°C, 1.9 mm): 8.5 MPa
Tensile set: 15%
Clash-Berg modulus (−40°C): 68.9 MPa
Tensile elongation at break (125°C, 1.90 mm): 220%
Tensile elongation at break (1.90 mm): 570%
Tear strength (Die C, 1.90 mm): 56.9 kN/m
Ductile/Brittle transition temperature: −58°C
Change in Shore hardness in air (Shore A, 125°C, 168 hrs): −3.0
Shore hardness (Shore A, 1.90 mm, compression molded): 69
Change in durometer hardness in air (Shore A, 125°C, 168 hrs): −3.0
Durometer hardness (Shore A, 1.90 mm, compression molded): 69
Compression set (24°C, 22 hrs, Method B): 19%
Compression set (100°C, 22 hrs, Method B): 89%
Compression set (24°C, 22 hrs): 19%
Compression set (100°C, 22 hrs): 89%
Taber abrasion resistance (CS-17 wheel, 1,000 g, 1,000 cycles): 9.00 mg
Processing (melt) temp: 177°C
Primary Chemistry:
Melt-processable rubber
Poor grip or slippage in handles, seals, or contact surfaces
Slow cycle times or high costs from vulcanized rubber
Difficulty filling complex or thin-wall part geometrics
Material degradation from oils, fuels, or chemicals
Inconsistent performance or design limitations
Tubing
Hose
Wire and cable
Engineering parts
Industrial parts
Equipment handles
Automotive interior
Weatherstrips
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