Butyl Rubber

Name:
Butyl Rubber
Detailed information:
A copolymer of isobutylene (97%) and isoprene (3%). Polymerized below −95C with aluminum chloride catalyst.

Properties:

D 0.92. Vulcanizates have tensile strength up to 2000 psi (unreinforced) and 3000 psi (reinforced). Service temperatures range from −55 to +204C. Good abrasion resistance, excellent impermeability to gases, high dielectric constant, excellent resistance to aging and sunlight, superior shock-absorbing and vibration-damping qualities. Resistance to oils and greases only fair. Will support combustion.

Grade:

Stabilized, latex, chlorine-containing elastomer, low molecular weight (liquid).

Use:

Tire carcasses and linings, especially for tractors and other outsize vehicles; electric wire insulation; encapsulating compounds; steam hose and other mechanical rubber goods; pond and reservoir sealant. Latex is used for paper coating, textile and leather finishing, adhesive formulations, air bags, tire vulcanization, self-curing cements, pressure-sensitive adhesives, tire-cord dips, sealants.

See Isobutylene-isoprene Copolymer.