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CT1 Silicone Adhesive


From £10.95 Excl. VAT

CT1 Adhesive is a uniquely flexible silicone sealant and adhesive which will not shrink or crack over time. You can use CT1 Silicone Adhesive when sealing solid wall insulation/render-only systems, as well as substrates including; baths, showers, roofs, doors, windows, and gutters.

Available in:

  • White
  • Grey
  • Clear
  • Black
  • Anthracite

CT1 Silicone Adhesive

CT1 Silicone Adhesive offers a unique adhesion to a wide range of surfaces. It is a special hybrid polymer that provides ease of use for many circumstances; for example, it can be applied in wet or dry conditions to different materials without needing additional fixings. CT1 is an essential item to have on-site, as it is perfect for use with external wall insulation systems.

To prevent water ingress, you should use CT1 Silicone Adhesive around risk areas, such as on detached properties where the insulation meets the neighbouring property, or as a sealant for around window reveals, etc.


  • Resistance to fungal growth and chemicals
  • Odourless application and finish
  • High flexibility
  • Can be painted
  • Environmental compliance
  • Vibration resistance
  • UV resistance
  • High tensile strength
  • Instant repair and bonding with fibreglass and carbon fibre materials
  • No solvents
  • Use in salt-water environments
  • No Isocyanates
  • Instant performance
  • Anti-fungal

Suitable Substrates

  • Polystyrene
  • Metals (including lead)
  • Glass
  • Mirrors
  • Wood


Ensure that the CT1 adhesive cartridge has been stored at room temperature before use. Cut the CT1 cartridge at the nose and cut off the nozzle to the required dimensions. Use a Mastic Gun to apply the CT1 Silicone Adhesive to the required substrate.

Full cure time

23ºC 50% R.H.

24hrs – 6mm

48hrs – 7/12mm

Shelf life

18 months




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