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B&Q£37.49Visit shop B&Q - Grey Multi-Surface Construction Sealant & Adhesive 290Ml Tube (3 Pack)Waterproof & Weatherproof Silicone
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This OB1 grey construction sealant and adhesive is ideal for trade professionals and DIY enthusiasts tackling construction, maintenance, and repair projects. Its key benefit is strong, multi-surface adhesion with a durable, waterproof, and weatherproof finish, suitable for both interior and exterior applications. A potential caveat is that the grey colour may not suit all aesthetic requirements, though it's designed for projects where colour matching is important. This 290ml 3-pack offers a practical supply for various sealing, bonding, and filling tasks.
| Colour | Grey |
|---|---|
| Brand | OB1 |
Yes, once fully cured, the OB1 Multi-Surface Construction Sealant & Adhesive can be painted over with most standard paint types. Ensure the surface is clean and dry before painting.
Wipe away any uncured sealant immediately with a damp cloth. For more stubborn residue, a mild solvent may be used carefully on a cloth, but test in an inconspicuous area first.
The sealant is designed to be weatherproof and durable, but specific temperature resistance limits should be checked against the product's technical data sheet if extreme temperatures are expected.
Curing times can vary depending on temperature, humidity, and bead size. Typically, it becomes tack-free within a short period, but full cure can take 24-48 hours for optimal strength and water resistance.
While it offers strong adhesion, it is primarily designed for sealing, filling, and general bonding tasks in construction and repair. For critical structural applications, consult the product's technical specifications or a structural engineer.
Unopened tubes typically have a shelf life of 12-18 months when stored correctly in a cool, dry place. Refer to the packaging for the exact expiration date.
Ensure the inner seal of the tube has been properly punctured and that the sealant gun is functioning correctly.
Verify that the surfaces are clean, dry, and free from dust, grease, or loose particles. Lightly abrading smooth surfaces may improve adhesion.
Practice with the sealant gun on a scrap piece of material to achieve a consistent flow rate and pressure. Ensure the nozzle is cut to the appropriate size for the gap being filled.
Use a damp (not wet) tool for smoothing and work quickly after application. Avoid excessive pressure, which can spread the sealant too thinly or unevenly.
Setup: To use, ensure you have a standard sealant gun. Cut the nozzle tip to the desired bead size and puncture the inner seal. Apply the sealant using the gun, maintaining consistent pressure for an even bead.
Compatibility: This sealant is compatible with a wide range of common building materials including wood, metal, concrete, brick, plaster, and most plastics. For best results, test on a small, inconspicuous area first, especially on painted surfaces or plastics. Avoid contact with certain rubbers or plasticisers, which may cause discolouration or affect adhesion. Not recommended for use on porous materials like natural stone without prior testing or sealing.
Care: Ensure surfaces are clean, dry, and free from dust, grease, and loose material before application. For best adhesion, lightly abrade smooth surfaces. Once applied, smooth the bead immediately with a damp tool. Clean up any excess uncured sealant with a damp cloth. Cured sealant can be removed mechanically. Store the product in its original, unopened packaging in a cool, dry place, away from direct sunlight and extreme temperatures.
