Willseal Seismic

Willseal Seismic is a one-step primary sealant for exposed areas where color matching is important. It has a puncture resistant, elastomeric coating on the exterior surface, which can be factory colored to match most construction substrates or sealants. The joint is watertight and color matched.


  • Primary construction joints
  • Vertical movement joints
  • Expansion, control, and isolation joints
  • Retrofit and seismic joints
  • Pre-cast concrete walls, tilt-up walls
  • Exterior panel systems – Masonry, Granite, Metal, EIFS, Curtain Walls
  • Joints requiring a resilient, waterproof seal
  • Larger joints requiring an architectural finish