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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Omschrijving Prijs 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 Chemical Composition
RS-stocknr. 555-588
FabrikantRS PRO
6,04 €
Each
Aantal stuks
Transparent - Electrical 100 g Tube -60°C No +180°C Acetoxy, Elastomer Acetoxy Cure - 7 (23 °C) days Paste -
RS-stocknr. 512-799
FabrikantRS PRO
9,58 €
Each
Aantal stuks
White Silicone Sealant Jointing 310 ml Cartridge -50°C No +100°C Elastomer Low Modulus, Neutral Cure - 7 (23 °C) days Paste -
RS-stocknr. 494-102
FabrikantRS PRO
16,81 €
Each
Aantal stuks
White Silicone Sealant Copper, Semiconductor Junction Protection 310 ml Cartridge -40°C No +150°C Elastomer Neutral Cure, Non-Corrosive - 7 (23 °C) days Paste Stearic Acid
RS-stocknr. 512-783
FabrikantRS PRO
9,58 €
Each
Aantal stuks
Black Silicone Sealant Jointing 310 ml Cartridge -50°C No +100°C Elastomer Low Modulus, Neutral Cure - 7 (23 °C) days Paste -
RS-stocknr. 550-230
FabrikantRS PRO
11,16 €
Each
Aantal stuks
Transparent Silicone Sealant Electrical 310 ml Cartridge -60°C No +180°C Acetoxy, Elastomer Acetoxy Cure - 7 (23 °C) days Paste -
RS-stocknr. 494-118
FabrikantRS PRO
9,19 €
Each
Aantal stuks
White - Copper, Semiconductor Junction Protection 100 g Tube -40°C No +150°C Elastomer Neutral Cure, Non-Corrosive - 7 (23 °C) days Paste Stearic Acid
RS-stocknr. 688-3410
Fabrikantnummer5366 50ml
FabrikantLoctite
9,51 €
Each
Aantal stuks
Transparent Silicone Sealant Bonding 50 ml Cartridge -60°C No +250°C Acetoxy - Loctite 5366 - Paste -
RS-stocknr. 160-8368
FabrikantnummerLoctite 5368
FabrikantHenkel
25,02 €
Each
Aantal stuks
Black Silicone Sealant Bonding, Sealing 310 ml Cartridge -60°C No +250°C Silicone - Loctite Silicomet AS 312 - Paste -
RS-stocknr. 561-176
Fabrikantnummer2939126
FabrikantDow Corning
6,01 €
Each
Aantal stuks
Transparent - Insulation, Pipe Sealing, Sealing, Trunking Sealing 78 g Injector -40°C No +150°C Acetoxy Non-Flammable Geobond Marine 24 (3 mm h@ 23 °C) Paste -
RS-stocknr. 665-8573
Fabrikantnummer1127070
FabrikantHenkel
15,09 €
Each
Aantal stuks
Black Silicone Sealant Sealing 100 ml Tube - No +200°C Acetoxy High Elongation Loctite 5940 - Paste -
RS-stocknr. 341-0961
Fabrikantnummer91361
FabrikantBostik
8,66 €
Each
Aantal stuks
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 -
RS-stocknr. 901-5688
Fabrikantnummer740010665
FabrikantAcc Silicones
43,20 €
Each
Aantal stuks
Translucent Silicone Sealant Industrial 310 ml Cartridge -60°C No +250°C Silicone Elastomer High Temperature and Low Humidity, Tack-Free - 7 (3 mm) h Paste -
RS-stocknr. 459-0210
Fabrikantnummer6011086
FabrikantDow Corning
9,88 €
Each
Aantal stuks
Transparent Silicone Sealant Glass, Sealing, Waterproof 310 ml Cartridge - No - Acetoxy High Elasticity 781 1 (3 mm day@ 23 °C), 3 (5 mm days@ 23 °C) Paste -
RS-stocknr. 113-008
Fabrikantnummer6011048
FabrikantDow Corning
3,60 €
Each
Aantal stuks
Transparent - Exterior, Sealing 50 ml Tube +5°C No +40°C Elastomer Fungus Resistant, Mildew Resistant SRS - Paste -
RS-stocknr. 423-6786
Fabrikantnummer229227
FabrikantLoctite
13,67 €
Each
Aantal stuks
Black Silicone Sealant Sealing 100 ml Tube -60°C No +250°C Acetoxy High Elongation, High Tensile Strength, Shore Hardness Loctite 5940 - Paste -
RS-stocknr. 192-1526
Fabrikantnummer5313 20MM
Fabrikant3M
78,72 €
Each
Aantal stuks
Black Sealant Strip - - - -40°C - +100°C - - Scotch-Weld™ 5313 - - -
RS-stocknr. 113-115
Fabrikantnummer6011019
FabrikantGeocel
9,28 €
Each
Aantal stuks
Grey Silicone Sealant Glass, Sealing 310 ml Cartridge -50°C No +150°C - Low Modulus Geocel 791 7 → 14 days Paste -
RS-stocknr. 740-1362
Fabrikantnummer4068751
FabrikantDow Corning
9,40 €
Each
Aantal stuks
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-stocknr. 423-6938
Fabrikantnummer6011030
FabrikantGeocel
9,62 €
Each
Aantal stuks
Red Silicone Sealant Sealing 310 ml Cartridge -40°C No +250°C Acetoxy - Plumba Flue - Putty -
RS-stocknr. 423-6758
Fabrikantnummer229293
FabrikantLoctite
13,67 €
Each
Aantal stuks
Transparent Silicone Sealant Sealing 100 ml Tube -60°C No +250°C Acetoxy High Elongation, High Tensile Strength, Shore Hardness Loctite 595 - Paste -
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