Your Cart

CT1 Silicone Sealant and Adhesive GREY (290ml)

CT1 Silicone Sealant and Adhesive GREY (290ml)
  • CT1 Silicone Sealant and Adhesive - GREY
  • Flexible hybrid polymer silicone sealant & adhesive
  • High flexibility and bonding strength
  • Suitable for a wide range of substrates
  • Great resistance to fungal growth and chemicals
Estimated delivery:
In Stock
£ 14.70
Ex VAT: £ 12.25
  • Brand: CT1®
  • Model: CT1 Silicone Adhesive Grey
  • Weight: 0.38kg
  • Dimensions: 210mm x 47mm x 47mm
  • SKU: Grey
  • Product code: P1-2372
  • MPN: CT1 Silicone Adhesive Grey

CT1 Silicone Sealant and Adhesive GREY (290ml cartridge) is a special hybrid polymer based silicone sealant and adhesive that can be used to seal: solid wall insulation, render-only systems, baths, showers, roofs, doors, windows, and gutters.

Grey colour silicone sealant & adhesive is an easy to apply product with high flexibility and bonding strength suitable for a wide range of substrates including: polystyrene, metals (including lead), glass, mirrors and wood.

Silicone Adhesive CT1 offers a unique adhesion to a wide range of surfaces with great resistance to fungal growth and chemicals.

CT1 can be applied in wet or dry conditions to different materials without needing additional fixings and will not shrink or crack over time.

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 / door reveals.

To apply the product, 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.

CT1 adhesive cartridge has to be stored at room temperature before use.




Colour: Grey

Cartridge Size: 290ml

Material Density: 1.02 kg/l

Shelf Life: 18 Months unopened

pH Value: 7.2 / 7.8 Mildly alkaline

Temperature Resistance: -20⁰C to +80⁰C

Storage: +5⁰C to +25⁰C without direct sunlight

Application Temperature: -10⁰C to +40⁰C (Recommended +5⁰C)


CT1 Silicone Sealant & Adhesive Key Points:

 · Instant repair and bonding with fibreglass and carbon fibre materials

 · Highly flexible ready-to-use product

 · Resistant to fungal growth and chemicals

 · Odourless application and finish

 · Highly flexible with no Isocyanates

 · Instant performance - can be painted

 · Environmental compliant

 · Vibration and UV resistant

 · High tensile strength

 · Anti-fungal


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet ǀ SDS

Colour Grey
Density 1.02 kg/l
Material Hybrid polymer based silicone
Size 290ml
Storage +5⁰C to +25⁰C without direct sunlight
Shelf Life 18 months unopened
pH Value 7.2 / 7.8 Mildly alkaline
Application Temperature Recommended +5⁰C
Cartridge Size 290ml
Material Density 1.02 kg/l
Applications Bonding and Sealing
Features High flexibility and bonding strength
Manufacturer CT1®

Write a review

Note: HTML is not translated!
Bad Good

We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
CT1 Silicone Sealant and Adhesive GREY (290ml)
CT1 Silicone Sealant and Adhesive GREY (290ml)
£ 14.70