THIOKOLĀ® 2235SL is a high performance, self-leveling, chemical resistant elastomeric joint sealant. Due to its high polysulfide polymer content, it is resistant to many chemicals, shrinkage, aging, thermal stress and the effects of outdoor exposure.

Recommended Uses:

Concrete expansion joints:
- Bridges
- Roadways
- Warehouse floors
- Secondary containment dike walls & floors
- Tank chine seals
- Concrete panels


  • Retains elasticity even as concrete moves; maintains flexibility over time
  • Resists mild acids, alkalies and petroleum products
  • Resists effects of sunlight, rain, snow, ozone, aging, shrinkage and cyclic temperature changes, even after years of service
  • Contains no volatile solvents
  • Self-leveling for ease of application
ITW Engineered Polymers