EW Polymer Group

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Butyl Rubber

CENWAY I IR 532

Composition    
Butyl Rubber Cenway I IR 532 is a copolymer rubber of isobutylene and isoprene.

Basic Properties

PropertiesUnitIndexTest Method
Appearance   Off-white Visual
Mooney Viscosity MU 51±5 ISO 289/ASTM D1646
Volatiles wt% ≤ 0.3 ISO 248/ASTM D5668
Total Ash wt% ≤ 0.3 CENWAY METHOD
Antioxidant wt% ≥ 0.03 ISO 247/ASTM D5667

Applications
Regular Butyl Rubber I IR-532 has superior air impermeability, outstanding performance of heat-resistance, chemical corrosion-resistance, thermal aging resistance, and good curing performance. It can be widely used for innertubes of tires, medical stoppers, ball bladders, sealing materials and electrical insulations.

Safety & Toxicity
I IR-532 is polymer in solid with stable performance. It is harmless and not dangerous for humans, plants and animals. For relevant safety data and reference, please refer to MSDS.

Packaging
25 ± 0.5 kg/bale in modified PE film.
Pallets of plywood box of 1050 kg with 42 bales.
Pallets of metal box of 1200 kg with 48 bales.

Storage Life & Conditions
Three years with keeping storage & transport under 35℃ and against sunlight.