Question 1

1. What’s the best way to store silicone sealant?

Accepted Answer

If you’re wondering how to store silicone sealant, here’s some great advice from the brand Soudal:

“Store sealants in a cool and dry location where the temperature is between 5°C and 25°C. When the product has been opened, seal the nozzle as much as you can to ensure that air humidity cannot come in contact with the product, which would result in curing inside the nozzle/cartridge.”

Every product is different though, so make sure you check the packaging for specific instructions.

Question 2

2. How do you remove silicone sealant?

Accepted Answer

The easiest way to remove silicone sealant is by softening or dissolving it with a specialised remover, before scraping it off with a plastic tool. You can find a detailed how-to by the team at Homebase here.

Find sealant remover and other cleaning products for construction here.

Question 3

3. What’s the difference between silicone sealant and acrylic sealant?

Accepted Answer

Silicone sealant remains flexible and is water-resistant, making it suitable for bathrooms and kitchens. Acrylic sealant is paintable and used for internal joints and gaps.

Question 4

4. Can I use the same sealant for windows and doors?

Accepted Answer

Yes, many sealants are multipurpose. However, for external windows and doors, choose a weatherproof product with good adhesion and movement capability.

Question 5

5. What's neutral-cure silicone for?

Accepted Answer

Neutral-cure silicone is ideal for use with materials like uPVC, aluminium, or natural stone, where acetoxy-cure might cause corrosion or staining.

Question 6

6. What’s the difference between a sealant and a sealer?

Accepted Answer

Sealants are flexible materials used to fill gaps and joints, preventing air, water, or dust from getting through. They're common in bathrooms, kitchens, and around windows. Sealers, on the other hand, are surface coatings that protect materials like concrete, stone, or wood from moisture, stains, and wear. In short: sealants block gaps, while sealers protect surfaces.

Silicones and sealants online

Thompsons 5Ltr Water Seal

CT1 Sealant & Construction Adhesive Clear 290ml

CT1 Sealant & Construction Adhesive Black 290ml

Dow 785+ Sanitary Silicone Sealant Clear 310ml

Dow 785+ Sanitary Silicone Sealant White 310ml

Dow 781 General Purpose Silicone Sealant White 310ml

Mapesil AC Sealant 114 Anthracite 310ml

Sika Waterproofer 5ltr

Mapesil AC Sealant 130 Jasmine 310ml

Dow 781 General Purpose Silicone Sealant Clear 310ml

Mapei Shower Waterproofing Kit 5kg

CT1 Sealant & Construction Adhesive Oak 290ml

Thompson's One Coat Damp Seal 750ml White

Soudal 270ml Multi-Purpose Silicone Clear 121644

Polycell One Coat Damp Seal 1ltr

Sika 4a Waterstop 5ltr

Mapesil AC Sealant 113 Cement Grey 310ml

CT1 Sealant & Construction Adhesive Silver 290ml

Soudal Trade Roof & Gutter Sealant Black 290ml

CT1 Adhesive and Sealant-Anthracite 290ml Anthracite

Soudal 270ml Multi-Purpose Silicone Brilliant White 121643

TIMCO Aluminium Foil Tape - 45m x 50mm

Geocel Dowsil 791 Weatherproofing Sealant Black 310ml

Geocel Dowsil 791 Weatherproofing Sealant White 310ml

Thompson's Patio & Block Paving Seal 5L

Mapesil AC Sealant 111 Silver Grey 310ml

Polycell One Coat Damp Seal 2.5ltr

Ronseal One Coat Damp Seal White 2.5L

Bostik S41 Neutral Cure Low Modulus Acetoxy Window & Door Frame Silicone Clear 310ml

Bostik S41 Neutral Cure Low Modulus Acetoxy Window & Door Frame Silicone White 310ml

Bostik Pro S31 Sanitary Silicone 310ml Grey

Bostik Pro S41 Window & Door Frame Silicone 310ml Brown

Bostik Pro Sealant S41 Window & Door Frame Silicone Anthracite 310ml

Soudal Bathroom & Kitchen Sanitary Silicone Clear 290ml

Soudal Bathroom & Kitchen Sanitary Silicone White 290ml

Mapei Mapesil AC Sealant Medium Grey 310ml

Dryzone Damp Proofing Cream (DPC) - 600ml - High-strength Injection cream for rising damp treatment

Gorilla Patch & Seal Clear Waterproof Sealing tape (L)2.4m (W)100mm

Wavin Osmasoil Solvent Cement 125ml Can

Soudal Gun Grade Gap Filler Expanding Foam Champagne 750ml (116745)