Silicone Sealants

Silicone sealants are adhesives that are most often used to create a water or airtight seal in the joint between two surfaces. Silicone sealant has a gel consistency which cures by drying over a period of time, with the correct temperature and humidity. The cured product is a durable yet flexible, silicone rubber.

Why use a silicone sealant?
They are very easy to use and enable you to create a waterproof join with minimal effort. Silicone sealants are weatherproof and can withstand a wide range of temperatures. The sealants bond to many different materials, are long-lasting and do not promote mould growth.

Types of Silicone Sealants:
Silicone sealants come in a range of different colours such as black, grey, white and clear. They typically come in a cartridge or tube and many have a nozzle for precise bead application. There are squeeze tubes which are used by hand or rigid tubes for use with a sealant gun.

Most silicone sealant is multi-purpose and can be used for general applications and bonds with many materials. Sanitary silicone sealants are best for wet applications for example in bathrooms. This is because they are resistant against mould and mildew.

Other things to consider when purchasing a silicone sealant is whether it is suitable for indoor or outdoor use, is it mould resistant, or whether you have any specific operating temperatures that could affect the efficiency of the silicone. Both heat and cold can affect silicone sealant and compromise its ability to seal.

What are they used for?
Silicone sealants are commonly used in both domestic and commercial environments. They are an essential DIY material for use as a bathroom sealant or in window construction. Other applications include:
Shower sealing
Window seal
Door seal
Cooker seal
Fridge seal
Plumbing joints
Electrical repair
Wire entry seal
Junction protection

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Viewing 1 - 20 of 24 products
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Description Price Colour 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 Dielectric Strength
RS Stock No. 341-0961
Mfr. Part No.91361
BrandBostik
TWD299.00
Each
units
Transparent 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 Stock No. 555-588
BrandRS PRO
TWD214.00
Each
units
Transparent Electrical 100 g Tube -60°C No +180°C Acetoxy, Elastomer Acetoxy Cure - 7 (23 °C) days Paste - 21.6kV/mm
RS Stock No. 550-230
BrandRS PRO
TWD382.00
Each
units
Transparent Electrical 310 ml Cartridge -60°C No +180°C Acetoxy, Elastomer Acetoxy Cure - 7 (23 °C) days Paste - 21.6kV/mm
RS Stock No. 693-264
Mfr. Part No.2942127
TWD443.00
Each
units
White Firestop 380 ml Cartridge - No - - - Firestop 700 - Paste - -
RS Stock No. 423-6758
Mfr. Part No.229293
BrandLoctite
TWD514.00
Each
units
Transparent Sealing 100 ml Tube -60°C No +250°C Acetoxy High Elongation, High Tensile Strength, Shore Hardness Loctite 595 - Paste - -
RS Stock No. 258-5979
Mfr. Part No.LOCTITE® SI 5368
BrandLoctite
TWD624.00
Each
units
Black Bonding 310 ml Cartridge -60°C No +250°C Acetoxy - Loctite 5368 - Paste - -
RS Stock No. 494-118
BrandRS PRO
TWD315.00
Each
units
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 Stock No. 494-102
BrandRS PRO
TWD575.00
Each
units
White 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 Stock No. 459-0226
Mfr. Part No.6011087
TWD1,364.00
Each
units
White Refrigeration Units 310 ml Cartridge -50°C No +150°C Acetoxy High Modulus 786 24 (2.5 mm) h Paste - -
RS Stock No. 459-0232
Mfr. Part No.6011088
TWD392.00
Each
units
Transparent Refrigeration Units 310 ml Cartridge -50°C Yes +150°C Acetoxy High Modulus 786 24 (2.5 mm) h Paste - -
RS Stock No. 512-799
BrandRS PRO
TWD328.00
Each
units
White Jointing 310 ml Cartridge -50°C No +100°C Elastomer Low Modulus, Neutral Cure - 7 (23 °C) days Paste - -
RS Stock No. 459-0210
Mfr. Part No.6011086
TWD341.00
Each
units
Transparent 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 Stock No. 561-176
Mfr. Part No.2939126
TWD207.00
Each
units
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 Stock No. 113-115
Mfr. Part No.6011019
BrandGeocel
TWD321.00
Each
units
Grey Glass, Sealing 310 ml Cartridge -50°C No +150°C - Low Modulus Geocel 791 7 → 14 days Paste - -
RS Stock No. 113-092
Mfr. Part No.6011017
BrandGeocel
TWD321.00
Each
units
Black Glass, Sealing 310 ml Cartridge -50°C No +150°C - Low Modulus Geocel 791 7 → 14 days Paste - -
RS Stock No. 705-9030
Mfr. Part No.3307271
TWD383.00
Each
units
White Low Temperature, Refrigeration Units 310 ml Cartridge - No - Alkoxy High Elasticity, Low Modulus, Low Odor 798 1 (2 mm day@ 23 °C), 3 (4 mm days@ 23 °C) Paste - -
RS Stock No. 561-160
Mfr. Part No.2939193
TWD313.00
Each
units
White Sealing 310 ml Cartridge -40°C No +150°C Acetoxy Non-Flammable Geobond Marine 24 (3 mm h @ 23 °C) Paste - -
RS Stock No. 512-783
BrandRS PRO
TWD328.00
Each
units
Black Jointing 310 ml Cartridge -50°C No +100°C Elastomer Low Modulus, Neutral Cure - 7 (23 °C) days Paste - -
RS Stock No. 561-132
Mfr. Part No.6001282
BrandGeocel
TWD512.00
Each
units
White Pipe Sealing, Plastic, Waterproof 290 ml Cartridge -40°C No +150°C Hybrid Non-Flammable Geobond Marine 24 (3 mm h@ 23 °C) Paste - -
RS Stock No. 113-008
Mfr. Part No.6011048
TWD125.00
Each
units
Transparent Exterior, Sealing 50 ml Tube +5°C No +40°C Elastomer Fungus Resistant, Mildew Resistant SRS - Paste - -