Best current price£249.99from B&Q
Shopping.co.uk recommended and popular offers
B&Q£249.99Visit shop B&Q - Black Multi-Surface Construction Sealant & Adhesive 290Ml Tube (24 Pack)WaterproofWeatherproof Silicone
Visit shop2 offers from £249.99 - £283.08
View price history by clicking the chart icon.
The OB1 Black Multi-Surface Construction Sealant & Adhesive is designed for professionals and DIYers undertaking construction, maintenance, and repair projects. Its primary benefit is providing a strong, waterproof, and weatherproof seal, bond, or fill across a wide array of building materials, ensuring durability for both interior and exterior applications. A minor caveat is its black color, which, while ideal for matching dark surfaces, may not suit all aesthetic requirements. This 290ml sealant is trusted for its versatile formula and dependable performance in demanding environments.
| Colour | Black |
|---|---|
| Brand | OB1 |
Once fully cured, OB1 sealant can typically be painted over. However, it is advisable to test compatibility with your chosen paint on a small, inconspicuous area first to ensure good adhesion and finish.
Unopened tubes typically have a shelf life of 12-18 months when stored correctly in a cool, dry environment. Always check the manufacturing date on the packaging.
Yes, the waterproof and weatherproof formula makes it ideal for sealing joints and gaps in bathrooms and kitchens where moisture is present.
Drying and curing times vary depending on temperature, humidity, and bead thickness. Typically, it skins over in about 15-30 minutes and fully cures within 24-48 hours.
OB1 is designed for sealing, bonding, and filling. While it offers strong adhesion, it is not intended as a primary structural adhesive for load-bearing applications. Consult product specifications for load-bearing capabilities.
While versatile, avoid using on surfaces that are constantly immersed in water or exposed to extreme chemical environments without prior testing. Always test on sensitive materials like certain plastics or coated surfaces.
Ensure the nozzle tip is cut correctly and the inner seal is fully punctured. Check that the sealant gun is functioning properly.
Verify the surface is clean, dry, and free from dust, grease, or loose material. Ensure the product is applied within its recommended temperature range and cure time is allowed.
This can occur in very humid conditions or if applied too thickly. Ensure adequate ventilation. If uncured, wipe away excess and reapply. Curing time varies with temperature and humidity.
Use a smoothing tool or a wet finger (dipped in soapy water for easier glide) immediately after application to create a neat bead. Clean up excess before it cures.
Setup:
Compatibility:
OB1 adheres strongly to a wide range of common building materials, including concrete, brick, stone, wood, metal, glass, and many plastics. It is recommended to perform a small test application on an inconspicuous area of the substrate to confirm adhesion and compatibility, especially with sensitive materials or painted surfaces.
Care:
