4.5 out of 5 Stars on

CT1 Silicone Adhesive (White)

(3 customer reviews)

£10.62 Excl. VAT

CT1  Adhesive is the best silicone adhesive on the market, a uniquely flexible silicone sealant and adhesive, this particular sealant will not shrink or crack over time. You can apply CT1 Silicone Adhesive to a range of substrates including baths, showers, roofs, doors, windows and gutters. CT1 Silicone Adhesive is also the best product to use when sealing solid wall insulation/render-only systems.

Available in:

  • White
  • Grey
  • Clear
  • Brown
  • Black

CT1 Silicone Adhesive

CT1 adhesive offers a unique adhesion to a wide range of surfaces. It is a unique hybrid polymer which offers an ease of use for a wide range of circumstances, for example it can be applied in wet or dry conditions to different materials without the need for 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, CT1 can be applied around risk areas such as on detached properties where the insulation meets the neighbouring property, or as sealant for around window reveals etc.

CT1 adhesive comes in a range of different colours to ensure that it suits your requirements.

  • 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



3 reviews for CT1 Silicone Adhesive (White)

  1. Jayesh

    Best sealant to use on a job. CT1 is always the way to go if you need to weatherproof and external seal.

  2. Chris Dixon

    Very strong

  3. Peter D

    This is without a doubt the best Silicone sealant out there. We have tried them all in the past, but time and time we come back to CT1 despite the premium price. If applied externally, you know you can forget about it for 5 years plus and have no issues, which is certainly not the case with other silicone sealants. Only reason 4 star is it is much more expensive!

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