Sealants

Sealants and sealant kits are widely used by both hobbyists and professionals for a broad range of protecting and waterproofing jobs. The best sealant type to use in a given scenario will depend on the surface materials and the location of the seal. There are many varieties of sealants, putties, and sealant remover kits on sale, with leading brands including Dow Corning and Bostik. While most tend to fall within one of a few basic categories - cement sealants, chemical sealants, or silicone sealants - there are also a number of sealants designed for more specialised purposes.

What’s the difference between sealant types?

Silicone sealants - among the most widely available sealant types, and ideal for a wide array of household, DIY and construction tasks.

Acrylic sealants - often a cheaper alternative to silicone for use on wood, aluminium, and UPVC, and can also be painted. They’re less flexible than most silicone versions, and more prone to eroding under certain application conditions.

Polyurethane foam sealants - extremely flexible/elastic and highly waterproof, ideal for sealing most metals and fibreglass.

Why is sealant modulus and cure type important?

High modulus sealants are less elastic but more hardwearing, and better suited to indoor applications as a kitchen or bathroom sealant (around baths, showers, sinks and worktops).

Low modulus sealants offer better flexibility and adhesion where slight movement of the joint may be a factor, but are less hardwearing overall. They’re generally best for outdoor and weather-resistant applications (perimeter seals and exterior UPVC).

Most sealants are available in one of two cure types - acetoxy and neutral.

  • High modulus sealants tend to be acetoxy cure, meaning they’ll cure faster and harder, and will emit a slight vinegar smell while doing so.
  • Low modulus sealants are often sold in natural cure variants, meaning they adhere better to a greater range of surfaces, cure slowly to a more elastic consistency, and give off little odour.

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Beskrivning Pris Colour Sealant Type Application Package Size Package Type Minimum Operating Temperature Food Processing Safe Maximum Operating Temperature Chemical Type Physical Properties Trade Name Cure Time Product Form Elongation
RS-artikelnummer 512-783
VarumärkeRS PRO
99,11 kr
Each
Enheter
Black Silicone Sealant Jointing 310 ml Cartridge -50°C No +100°C Elastomer Low Modulus, Neutral Cure - 7 (23 °C) days Paste -
RS-artikelnummer 665-8573
Tillv. art.nr1127070
VarumärkeHenkel
156,03 kr
Each
Enheter
Black Silicone Sealant Sealing 100 ml Tube - No +200°C Acetoxy High Elongation Loctite 5940 - Paste -
RS-artikelnummer 160-8368
Tillv. art.nrLoctite 5368
VarumärkeHenkel
258,71 kr
Each
Enheter
Black Silicone Sealant Bonding, Sealing 310 ml Cartridge -60°C No +250°C Silicone - Loctite Silicomet AS 312 - Paste -
RS-artikelnummer 192-1526
Tillv. art.nr5313 20MM
Varumärke3M
1 029,03 kr
Each
Enheter
Black Sealant Strip - - - -40°C - +100°C - - Scotch-Weld™ 5313 - - 1.8
RS-artikelnummer 341-0949
Tillv. art.nr91363
VarumärkeBostik
85,11 kr
Each
Enheter
White Silicone Sealant Exterior, Sealing 300 ml Cartridge -50°C No +180°C Acetoxy, Elastomer Acetoxy Cure, High Modulus Bond-Flex 100HMA 24 (2 mm h @ 23 °C) Non-Slump Paste -
RS-artikelnummer 859-7971
Tillv. art.nr1911295
VarumärkePhoenix Contact
41,546 kr
Each (In a Box of 50)
Enheter
- - - - - - - - - - - - - -
RS-artikelnummer 194-5879
Tillv. art.nr1144110 Clear
95,24 kr
Each
Enheter
Transparent Silicone Sealant - - - - No - - - - - Applicator Gun -
RS-artikelnummer 740-1362
Tillv. art.nr4068751
VarumärkeDow Corning
99,14 kr
Each
Enheter
Transparent Silicone Sealant Glass, Waterproof 310 ml Cartridge - No - - High Elasticity, Low Modulus, Low Odor, Non-Corrosive 799 1 (2.8 mm day@ 23 °C), 3 (4.3 mm days@ 23 °C) Paste -
RS-artikelnummer 423-6938
Tillv. art.nr6011030
VarumärkeGeocel
101,46 kr
Each
Enheter
Red Silicone Sealant Sealing 310 ml Cartridge -40°C No +250°C Acetoxy - Plumba Flue - Putty -
RS-artikelnummer 194-5890
Tillv. art.nr1144010 White
95,24 kr
Each
Enheter
White Silicone Sealant General Purpose 295 ml Cartridge - - - - - - - Paste -
RS-artikelnummer 341-0961
Tillv. art.nr91361
VarumärkeBostik
91,34 kr
Each
Enheter
Transparent Silicone Sealant Exterior, Sealing 300 ml Cartridge -50°C No +180°C Acetoxy, Elastomer Acetoxy Cure, High Modulus Bond-Flex 100HMA 24 (2 mm h @ 23 °C) Non-Slump Paste -
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