GENERAL PURPOSE SILICONE
A general purpose silicone for small sealing jobs
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Product overview
Bostik General Purpose Silicone is an industrial grade, neutral cure silicone sealant designed for sealing lap joints in metal guttering, aluminum, roofing, flashings and down pipes.
- General-purpose sealant for small sealing applications
- Permanently flexible
- Suitable for interior and exterior applications
- Unaffected by rain, snow, extreme temperature change and constant ultraviolet exposure
- Waterproof
- Excellent adhesion properties
Bostik General Purpose Silicone is suitable for:
- Mounting around windows & doors frames
- Lap joints in metal guttering
- Bonding all panels (OSB, word, plasterboards, drywalls, insulation board)
- Bonding masonry (windowsill, brick wall) and decorative elements
- Gap filling around pipes, penetration surfaces and more
- All materials except for PE, PP, PC, PMMA, PTFE, soft plastics, neoprene, and bituminous substrates
LIMITATIONS: Not suitable for permanent water load or filling in cavities with insufficient moisture.
Downloads & resources
Bostik DIY Malaysia Repair Assembly General Purpose Silicone Technical Data Sheet (199.02 KB)
Bostik DIY Malaysia Repair Assembly General Purpose Silicone Safety Data Sheet (382.21 KB)
How to use
Ensure all surfaces that will be in contact with the sealant are clean, dry, and free of dust, dirt, rust, oil, and other contaminants.
Non-porous substrates should be clean with solvent and wipe dry immediately with cloth before the solvent evaporates from the surface. Porous surfaces should be roughening with a stiff-bristled brush, rubbed down or sandblasted.
Complete all painting before applying. Use masking tape each side of the joint to simplify clean up and protect surfaces.
Application
- Unscrew cap and pierce end of tube with reverse end of cap to open.
- Apply on surface in steady flow by hand pressing.
- Tool off/smooth off before skin forms.
- If used, remove masking tape immediately until sealing tolling is complete.
- Sealant surface will skin in approx. 10 minutes and is touch dry in 30 minutes.
- Content fully cures in 48 hours.
Cleaning
- Remove excess uncured sealant with a mineral turpentine-soaked cloth.
- Fully cured excess sealant can be removed by trimming with a sharp knife.
Important
Oxime silicone sealants (both standard and sanitary grade versions containing fungicide) will tend to display a slight colour shift with age and exposure to ultraviolet light. Typically this colour shift, or yellowing, is not visually significant in the field. Also it is not necessarily confined to translucent coloured materials, and the fungicide itself does not have any adverse impact. This is a worldwide phenomenon affecting this cure type of silicone sealant.
Misapplication or contamination of an oxime sealant whilst curing will exacerbate the inherent condition. Specifically, chemical exposure to certain agents such as chlorinated cleaning solutions (ie, bleach), chemical solvents, and the fumes of some paints (enamel or solvent – containing types where not fully dried) may tend to magnify this yellowing change particularly where the sealant is still curing.
FAQs
What surface preparation is needed before using General Purpose Silicone?
Before applying Bostik General Purpose Silicone, make sure all surfaces are clean, dry and free from dust, grease, oil and other contaminants.
Removing dirt, residue and loose material helps the silicone adhere more effectively and can improve sealing performance. Preparing the surface properly is especially important when creating watertight seals around joints, gaps and household fixtures.
What is the best way to clean General Purpose Silicone from skin?
If Bostik General Purpose Silicone gets on your fingers or skin, remove any excess silicone as quickly as possible before it cures.
For uncured silicone, clean the affected area using mineral turpentine and then wash the skin thoroughly. Prompt cleanup helps make removal easier before the sealant sets.
How long can General Purpose Silicone be stored?
Bostik General Purpose Silicone can be stored for up to 12 months from the date of manufacture when kept in its original unopened packaging under the recommended storage conditions.
For best results, store the product in dry conditions and protect it from excessive heat and moisture. Proper storage helps maintain product performance throughout its shelf life.
When should you use General Purpose Silicone instead of Super Glue?
Use Bostik General Purpose Silicone when you need to seal joints, fill gaps or create a flexible, watertight seal around household fixtures and surfaces. The product is designed as a silicone sealant rather than a rapid-bonding adhesive.
Choose Bostik Super Glue when you need a fast-curing cyanoacrylate adhesive for quick repairs and precision bonding. If the goal is to bond materials together quickly, Bostik Super Glue is generally the better choice. If the goal is sealing, waterproofing or filling a joint, Bostik General Purpose Silicone is usually more suitable.
What does viscosity mean?
Viscosity describes how easily a liquid flows. A low-viscosity adhesive is thinner and flows more easily, while a high-viscosity adhesive is thicker and is less likely to run or drip.
In adhesives and sealants, viscosity can affect application, spreadability and how the product performs on vertical or horizontal surfaces.
Stuck on what glue to use?
Use this guide to find out what product to use for your job.
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