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X_Butyl® RB 402

Technical Datasheet | Supplied by ARLANXEO

X_Butyl® RB 402 by ARLANXEO is a non-staining, high-unsaturation, isobutylene-isoprene copolymer with low Mooney viscosity. The incorporation of isoprene creates double bonds allowing vulcanization with sulfur and other agents. It is suitable for a variety of rubber products, such as tire inner tubes, curing bladders and protective clothing. X_Butyl® RB 402 is also used in automotive/mobility, building/construction, industrial and medical products. It is also recommended for adhesives, consumer goods and wire & cable connectors.

X_Butyl® RB 402 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Mooney Viscosity

33 MU

(At ML (1+8) 125°C)

ISO 289

Un-saturated Content

2.25 %

(By Mol)

Volatile Content

< 0.3 %

(By Weight)

ASTM D5668/ISO 248

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