GASKET SEALANT
Bostik Gasket Sealant is a high-performance RTV silicone sealant and gasket maker designed for durable sealing and bonding. Its permanently flexible formulation provides reliable resistance to heat, vibration, moisture, oil, water and automotive fluids, making it suitable for a wide range of automotive and general-purpose sealing applications.
Red
Black
Downloads & resources
Singapore Gasket Sealant Technical Data Sheet ASIA Red (598.36 KB)
Singapore SDS Gasket Sealant Red REGC en (88.13 KB)
Singapore SDS Gasket Sealant Red PGHS en (96.63 KB)
Singapore SDS Gasket Sealant Black REGC en (89.67 KB)
Singapore SDS Gasket Sealant Black PGHS en (89.16 KB)
FEATURES & BENEFITS
Bostik Gasket Sealant delivers reliable, long-lasting sealing performance in demanding conditions. Its permanently flexible RTV silicone formulation withstands heat, vibration, thermal cycling, moisture, oil and automotive fluids.
High-temperature resistance: Withstands up to 260°C under continuous exposure and 317°C intermittently.
Resists vibration & thermal cycling: Helps maintain a durable seal under demanding conditions.
Resists oil, water & automotive fluids: Suitable for automotive and equipment sealing applications.
Permanently flexible: Cures to a resilient silicone rubber that maintains flexibility.
Non-slump formulation: Suitable for vertical and overhead surfaces.
Versatile applications: Ideal for forming-in-place gaskets, sealing flanged joints and general-purpose bonding and sealing.
HOW TO USE
For best results, ensure surfaces are clean, dry and free from dust, dirt, rust, oil and grease. Cut the nozzle to the desired bead size and apply a continuous, even 2–4 mm bead. Allow the sealant to form a skin without repositioning, then leave to cure fully.
Application steps:
Clean and prepare the surfaces before application.
Cut the nozzle to the desired bead size and attach it to the tube.
Apply a continuous, uniform 2–4 mm bead with steady pressure.
Smooth and shape the sealant if required using a spatula dipped in mild detergent.
Allow the sealant to cure. It becomes tack-free within approximately 8–15 minutes and typically reaches full cure within 24 hours.
Remove uncured excess with a suitable solvent. Fully cured sealant can be removed mechanically.
For safety, use in a well-ventilated area and wear appropriate personal protective equipment, including gloves and safety glasses.
Frequently asked Questions
Can Bostik Gasket Sealant be used on vertical surfaces?
Yes. Its non-slump formulation makes it suitable for application on vertical and overhead surfaces.
Can Bostik Gasket Sealant withstand vibration?
Yes. The cured silicone rubber provides resistance to vibration and thermal cycling, helping maintain sealing performance under demanding conditions.
Can excess Bostik Gasket Sealant be removed?
Yes. Uncured excess can be removed with a cloth dampened with mineral turpentine or an appropriate solvent. Once fully cured, the sealant can be removed mechanically by trimming.
How do I apply Bostik Gasket Sealant?
Ensure the surfaces are clean and dry, cut the nozzle to the desired bead size and apply a continuous, even 2–4 mm bead. Avoid repositioning the sealant once the skin has formed and allow it to cure fully.
How long does Bostik Gasket Sealant take to cure?
Under standard curing conditions, the sealant develops a tack-free surface within approximately 8–15 minutes and typically reaches full cure within 24 hours. Actual curing time depends on temperature and humidity.
How should Bostik Gasket Sealant be stored?
Store the product in its original, unopened packaging in cool, dry conditions. The stated shelf life is 18 months. Once opened, reseal the package immediately after use to minimise moisture exposure.
How should surfaces be prepared before applying Gasket Sealant?
Surfaces should be clean, dry and free from dust, dirt, rust, oil, grease and other contaminants. Non-porous surfaces should be cleaned with a suitable solvent, while porous substrates may require mechanical preparation.
Is Bostik Gasket Sealant resistant to oil and automotive fluids?
Yes. The cured sealant is designed to resist oil, water and automotive fluids, making it suitable for demanding sealing applications.
Is Bostik Gasket Sealant suitable for automotive applications?
Yes. It is formulated as a high-temperature gasket maker and automotive sealant and is suitable for applications involving oil, water, automotive fluids, vibration and thermal cycling.
What colours does Bostik Gasket Sealant come in?
Bostik Gasket Sealant is available in Red, Black and Grey variants.
What is Bostik Gasket Sealant used for?
Bostik Gasket Sealant is an RTV silicone sealant and formed-in-place gasket (FIPG) material designed for sealing and bonding applications. It can be used for flanged joints in transmissions, compressors, pumps and other equipment, as well as valve and timing covers, crankcases, radiators and thermostats.
How much heat can Bostik Gasket Sealant withstand?
Once fully cured, Bostik Gasket Sealant maintains its flexibility and sealing performance up to **260°C under continuous exposure and up to 317°C under intermittent exposure**. **Bostik Gasket Sealant RED is specifically designed for high-temperature applications and can withstand intermittent temperatures of up to 317°C.**
XPERTFIX
GENERAL PURPOSE SILICONE
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