Everbuild General Purpose Silicone - Black

Name: Everbuild General Purpose Silicone - Black
Brand: Everbuild
SKU: 4bhr3iiyfg
Availability: InStock

Everbuild GPSBK General Purpose Silicone Black 310ml is a mid modulus silicone sealant that adhere...

Best current price£2.98from Amazon

Colour

Black Brown Grey White

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Product Information

Full details

This guide is for DIY enthusiasts and trade professionals seeking a reliable, all-around sealant. The Everbuild General Purpose Silicone in Black offers a durable, waterproof, and flexible seal with anti-fungal properties, ideal for kitchens, bathrooms, and window installations. A key limitation to note is that it is not suitable for aquariums or certain delicate surfaces without proper preparation or alternative products.

All features

Colour	Black
Model Part Number	GPSBK
Brand	Everbuild

Extended Product Information

FAQs

Can this silicone be painted over?

No, Everbuild General Purpose Silicone is non-overpaintable. If a paintable finish is required, you will need to use a different type of sealant.

Is this suitable for sealing around a bath or shower?

Yes, this product is ideal for sealing around baths, showers, and basins due to its waterproof nature and anti-fungal properties which prevent mould growth in damp environments.

What is the shelf life of the product?

Unopened cartridges typically have a shelf life of 12 months when stored in cool, dry conditions away from direct sunlight. Always check the manufacturing date on the packaging.

How long does it take to cure fully?

The curing time can vary depending on temperature and humidity. It typically forms a tack-free skin within 30 minutes and cures fully within 24 hours to form a permanently flexible seal.

Can I use this for sealing worktops?

Yes, it is suitable for sealing around worktops and laminates to create a waterproof and hygienic joint.

What is the difference between this and an aquarium sealant?

This product is not suitable for aquarium manufacture because it may release substances harmful to aquatic life. Aquarium sealants are specifically formulated to be non-toxic to fish and other inhabitants once cured.

How should I prepare the surface before application?

Surfaces must be clean, dry, and free from dust, grease, or old sealant. For non-porous materials like glass or metal, cleaning with a solvent cleaner is recommended for best adhesion.

Troubleshooting

Sealant not adhering well

Ensure surfaces are thoroughly cleaned, dry, and free from dust, grease, or old sealant. For difficult surfaces like porous materials, priming may be required. Check if a solvent cleaner was used on glass or metal.

Sealant has mould growth

While this product contains an anti-fungal compound, severe contamination or constant high humidity may still lead to mould. Clean the affected area thoroughly and reapply sealant. Ensure adequate ventilation in the area.

Uneven or poor finish

Ensure the nozzle was cut to the appropriate size for the joint. Apply steady pressure on the sealant gun for a consistent bead. Smooth the bead immediately after application using a wet finger or smoothing tool.

Sealant is too thick or difficult to apply

Check the temperature; cold conditions can make silicone stiffer. Try to warm the cartridge slightly. Ensure the nozzle opening is adequately sized. The product has low viscosity for ease of application, so significant resistance may indicate other issues.

Pros and Cons

Pros

Excellent adhesion to various non-porous materials.
Integrated anti-fungal agent prevents mould in wet areas.
Fast curing time minimizes dust and dirt adhesion.
Offers a permanently flexible and waterproof seal.
Certified for multiple construction applications.

Cons

Not suitable for aquarium construction.
Requires surface preparation (cleaning/priming) for optimal adhesion on some materials.
Not recommended for use on highly porous surfaces without priming.
Cannot be overpainted.
Potential issues with double-glazed unit edge sealants.

Setup, Compatibility & Care

Surface Preparation:

All surfaces must be clean, dry, and free from dust, grease, and other contaminants. Remove any old sealant or flaking coatings. For glass, metal, and aluminium, use a suitable solvent cleaner to ensure optimal adhesion. Porous surfaces, such as new concrete or stonework, may require priming; test on a small area first.

Application:

Cut the nozzle to the desired bead size. Apply using a standard sealant gun. Ensure joints are correctly sized for the sealant's capabilities. Refer to joint ratio recommendations for best results.

Compatibility:

Adheres to: Most smooth, non-porous materials including PVCu, metal, timber, glass, and glazed surfaces.
Not Recommended For: Aquarium manufacture (use specific aquarium sealant), bitumen or asphalt applications (use Weathermate), highly porous surfaces without priming, substrates that bleed oils or plasticisers, and the edge sealants of double-glazed units (use Silicone 450).
Overpainting: This product is non-overpaintable.

Care:

Clean up uncured excess sealant with a damp cloth or solvent. Cured sealant can be removed mechanically by cutting or scraping. For ongoing maintenance, clean the sealed area with mild detergent and water. Avoid abrasive cleaners.