MasterSeal SL 1 is one component, non-priming, self-leveling elastomeric polyurethane designed for expansion joints in concrete floors and decks. Use it where flexibility as well as abrasion and puncture resistance are required.



  • Horizontal

  • Interior and exterior

  • Expansion joints

  • Control joints

  • Pavers

  • Plaza decks

  • Industrial floors

  • Driveways/garages

  • Sidewalks

  • Decks

  • Parking structures

  • Pitch pans


Product Highlights

  • Movement capability of ±25% allows expansion and contraction with joint movement

  • Abrasion resistant to provide for longer wearing and durability

  • Easy to gun for quick installation

  • Variety of types and sizes of packaging to help reduce jobsite waste

  • No priming needed on most surfaces, offering excellent adhesion

  • Self-leveling, so no tooling needed

  • Wide application temperature range makes MasterSeal SL1 suitable for all climates

  • Excellent weatherability for long-lasting performance