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X_Butyl® BB X2

Technical Datasheet | Supplied by ARLANXEO

X_Butyl® BB X2 by Arlanxeo is a sulfur-cure, non-staining, brominated isobutylene-isoprene coploymer. X_Butyl® BB X2 is used in pharmaceutical and medical applications like closures for infusion containers, injection vials, lyophilization & blood collection tubes, infusion pumps, pre-filled syringes, insulin injectors, dental anaesthetics and respirator masks & tubes.

X_Butyl® BB X2 Properties

Physical Properties

Value & Unit

Test Condition

Test Method

Antioxidant Non-Staining Content

> 0.03 wt %

Internal Method

Mooney Viscosity

46 MU

(ML 1+8, 125°C)

ISO 289

Bromine Content

1.8 wt%

Internal Method

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