Spectrem 1

Spectrem 1

Spectrem 1 is a high-performance, single-component, moisture-cure, ultra-low modulus silicone sealant.


Spectrem 1 is the ideal sealant for the most demanding dynamically moving joints. This includes material having a high coefficient of linear expansion such as:
  • Spectrem Simple Seal
  • Aluminium Curtain Walls
  • Precast Concrete Panels
  • Metal Panels
  • Window Perimeters


  • Ultra-low modulus means high elasticity with movement accommodation of +100/-50%.
  • With excellent adhesion to a variety of substrates, one product can be used for multiple applications on the same job from perimeter caulking to expansion joints.
  • An excellent choice for sealing difficult-to-adhere-to substrates.
  • Resistance to driving rain, ozone, ultra-violet light and temperature extremes safeguards against water penetration with exceptional weatherability in all climate zones.
  • Wide variety of colours.
  • No mixing required, so product is always ready to use for immediate application with conventional caulking equipment.
  • No frequently asked questions for this product