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WELL-BIIR™ IIR-51

Technical Datasheet | Supplied by Sundow Polymers

WELL-BIIR™ IIR-51 by Sundow Polymers is a copolymer of isobutylene and isoprene. Exhibits superior air impermeability and good curing performance. Provides outstanding heat-, chemical-, corrosion- and thermal aging resistance. Designed for innertubes of tires, medical stoppers, ball bladders, sealing materials and electrical insulations. WELL-BIIR™ IIR-51 has a shelf life of 3 years under 35°C.

WELL-BIIR™ IIR-51 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Mooney Viscosity

46 - 56 MU

(ML1+8, 125°C)

ISO 289/ASTM D1646

Volatiles Content

< 0.3 %wt

ISO 248/ASTM D5668

Antioxidant (non-staining)

> 0.03 %wt

Q/XH-FX 030-2011

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