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Alcryn® 2070NC INJ NAT is a medium-hardness, rubberlike resin that provides fast injection molding cycles, high flow, and broad chemical resistance.
Alcryn® 2070NC INJ NAT is a drop-in resin solution that can replace vulcanized rubbers and other flexible thermoplastic materials. With a Shore A hardness of approximately 68, it provides a medium‑firm rubber feel suitable for molded and extruded elastomer parts. Its unpigmented appearance makes it ideal for applications requiring custom coloration or translucent formulations.
Density: 1.20 g/cm³
Density, specific gravity: 1.20 g/cm³
Change in volume (in reference fuel B, 27°C, 168 hrs): 22%
Change in volume (in ASTM #1 oil, 100°C, 168 hrs): −16%
Change in volume (in IRM 903 oil, 100°C, 168 hrs): 18%
Change in volume (in water, 100°C, 168 hrs): 7.0%
Melt viscosity (190°C, 300 sec−1): 465 Pa·s
Tensile stress at 100% (1.90 mm): 4.00 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): 400%
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: 9%
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): 400%
Tear strength (Die C, 1.90 mm): 29.7 kN/m
Ductile/Brittle transition temperature: −85°C
Change in Shore hardness in air (Shore A, 125°C, 168 hrs): −3.0
Shore hardness (Shore A, 1.90 mm, compression molded): 68
Change in durometer hardness in air (Shore A, 125°C, 168 hrs): −3.0
Durometer hardness (Shore A, 1.90 mm, compression molded): 68
Compression set (24°C, 22 hrs, Method B): 16%
Compression set (100°C, 22 hrs, Method B): 64%
Compression set (24°C, 22 hrs): 16%
Compression set (100°C, 22 hrs): 64%
Taber abrasion resistance (CS-17 Wheel, 1,000 g, 1,000 cycles): 9.00 mg
Drying temperature: 82°C to 93°C
Die temperature: 163°C to 177°C
Melt temperature: 171°C to 182°C
Drying time, max: 3.0 to 4.0 hrs
Suggested max moisture: <0.020%
Processing (melt) temp: 177°C
Primary Chemistry:
Melt-processable rubber resin
Slow cycle times or low elastomer productivity
Difficulty filling complex or thin‑wall molds
Premature degradation from heat, oil, or ozone
Limited flexibility in color formulation
Cable jacketing
Wire insulation and protective sheathing
Weather-resistant sealing profiles
Extruded sealing profiles
Seals and gaskets
Industrial elastomeric parts
Industrial tubing
Calendered and fabric coatings
Overmolded elastomeric components
Firm elastomeric sheets
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