TamSeal SM – Hydro reactive expansion sealant for concrete joints


TamSeal SM is a one component hydro reactive expansion sealant for waterproofing joints in concrete. It is applied using a skeleton gun.

TamSeal SM expands up to 100% when in contact with fresh water to create a durable waterstop with long-lasting adhesive and hydro-swelling properties. When in contact with sea water, TamSeal SM expands between 50 - 70%.

TamSeal SM has excellent adhesive properties on different surfaces such as concrete, steel, glass, PVC, HDPE etc.  The surface can be rough, smooth, damp or dry.

Request more information

Key Benefits
  • Single component, direct application
  • A problem solving hydrophilic in difficult access areas
  • Fast curing, enables early concrete pour and rapid return to service
  • Excellent seal on rough concrete and plugs up irregular surfaces
  • Durable – excellent wet/dry cycle, retains elastic character and swelling performance
Typical Applications
  • Construction joints
  • Pipe penetrations (concrete, PVC, etc.)
  • Waterproofing of joints between pre-cast concrete elements (e.g. inspection manholes, box culverts, sewer systems etc.)
  • Waterproofing of H-beam penetration through floor slabs
  • Sealing around conventional PVC waterstop providing a belt seal prior to concrete pour
Subscribe to newsletter