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 36 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. 705-9030
Mfr. Part No.3307271
HK$96.59
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. 459-0210
Mfr. Part No.6011086
HK$86.43
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. 258-5941
Mfr. Part No.LOCTITE® SI 5366
BrandLoctite
HK$123.75
Each
units
Transparent Bonding 310 ml Cartridge -60°C No +250°C Acetoxy - Loctite 5366 - Paste - -
RS Stock No. 494-102
BrandRS PRO
HK$180.08
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. 555-588
BrandRS PRO
HK$55.26
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. 283-426
Mfr. Part No.158
HK$220.43
Each
units
Black Bonding, Sealing 75 ml Tube -60°C No +300°C Elastomer High Temperature Silcoset 158 7 (25 °C) h Paste - -
RS Stock No. 512-799
BrandRS PRO
HK$87.96
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. 901-5660
Mfr. Part No.740010635
HK$176.51
Each
units
White Engineering 75 ml Tube -60°C No +300°C Elastomer High Temperature, Tack-Free - <12 (3 mm) h Liquid - 20kV/mm
RS Stock No. 901-5679
Mfr. Part No.740010650
HK$407.85
Each
units
White Engineering 310 ml Cartridge -60°C No +300°C Elastomer High Temperature, Tack-Free - <12 (3 mm) h Liquid - 20kV/mm
RS Stock No. 901-5676
Mfr. Part No.740010645
HK$331.18
Each
units
White Industrial 310 ml Cartridge -60°C No +300°C Silicone Elastomer High Temperature and Low Humidity, Tack-Free - 7 (3 mm) h Paste - -
RS Stock No. 561-176
Mfr. Part No.2939126
HK$58.50
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. 693-264
Mfr. Part No.2942127
HK$122.32
Each
units
White Firestop 380 ml Cartridge - No - - - Firestop 700 - Paste - -
RS Stock No. 901-5672
Mfr. Part No.740010640
HK$161.03
Each
units
White Industrial 75 ml Tube -60°C No +300°C Silicone Elastomer High Temperature and Low Humidity, Tack-Free - 7 (3 mm) h Paste - -
RS Stock No. 901-5694
Mfr. Part No.740010675
HK$242.20
Each
units
Translucent Atmospheric Moisture, Corrosion Sensitive Devices, Electrical & Electronic Applications, Small Circuits and Connectors 310 ml Cartridge -60°C No +200°C Alkoxy, Silicone Elastomer Low Odor, Non-Corrosive, Tack-Free - 36 (3 mm) h Paste Thixotropic 18kV/mm
RS Stock No. 529-126
Mfr. Part No.6001570/C05
BrandGeocel
HK$77.17
Each
units
Transparent Asphalt, Glass, Masonry, Metal, Plastic, Stone, Wood 310 ml Cartridge -40°C No +80°C Elastomer High Elasticity, Mildew Resistant All Weather Seal 5 days Paste - -
RS Stock No. 113-008
Mfr. Part No.6011048
HK$27.36
Each
units
Transparent Exterior, Sealing 50 ml Tube +5°C No +40°C Elastomer Fungus Resistant, Mildew Resistant SRS - Paste - -
RS Stock No. 423-6758
Mfr. Part No.229293
BrandLoctite
HK$135.03
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. 550-230
BrandRS PRO
HK$90.21
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. 494-118
BrandRS PRO
HK$103.12
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. 901-5705
Mfr. Part No.740010690
HK$549.36
Each
units
Grey Atmospheric Moisture, Corrosion Sensitive Devices, Electrical & Electronic Applications, Small Circuits and Connectors 310 ml Cartridge -62°C No + 316°C Alkoxy, Silicone Elastomer High Strength, High Temperature Adhesive Paste, Non-Corrosive, Tack-Free - 72 (3 mm) h Paste - 18kV/mm