RS-BB420 Bromobutyl Cement

polyurea coatings gold standard | RS-BB420 Bromobutyl Cement

RS-BB420 Bromobutyl Cement

RS-BB420 Bromobutyl Based Tack Cement is a premium grade tack cement formulated with high quality RS-5610 rubber dissolved in solvent. RS-BB420 has the same temperature resistance as RS-5610, it can handle constant temperatures of 260°F (127°F) with temperature spikes to 310 °F (154°C). It is designed specifically for use in lining operations when bonding high butyl content rubber lining to itself. RS-BB420 provides exceptional strength while allowing for repositioning of the uncured rubber lining. It is suitable for use with autoclave, internal pressure and open steam cure methods.

Railcar Tanker Linings


Viscosity, cps.: 3500 – 5500 cps
Density: 0.906 – 0.926 g/ml
Flash Point:-7°C
Solids:20 – 23%
Appearance:Black Liquid
Shelf Life:1 yr min.(unopened)
Theoretical Coverage: 106.4 ft2/L ; 402.6 ft2/Gal (at 4 mils wet film)
VOC: 78.2%wt. or 721 g/L (maximum)

Typical Uses

Conveyor Belt Splicing
Pulley Lagging
Cold bonding of Rub-ber to Metal, Concrete, wood and many other materials
Cold bonding of Rub-ber to Rubber


Exceptional rubber to rubber strength
Allows repositioning of rubber lining
Provides excellent cured bond
Excellent chemical resistance Can be cured by auto-clave, internal pressure or open steam cure methods.

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