Best current price£37.49from B&Q
Shopping.co.uk recommended and popular offers
B&Q£37.49Visit shop B&Q - Black Multi-Surface Construction Sealant & Adhesive 290Ml Tube (3 Pack)WaterproofWeatherproof Silicone
Visit shop2 offers from £37.49 - £42.12
View price history by clicking the chart icon.
This OB1 black construction sealant is for trade professionals and DIY enthusiasts needing a reliable, multi-surface solution for sealing, bonding, and filling in construction, maintenance, and repair projects. Its key benefit is a waterproof and weatherproof formula that creates durable interior and exterior finishes. A minor consideration is that the black color may not suit all aesthetic requirements. The product offers strong adhesion on various building materials, making it suitable for professional and domestic use.
| Colour | Black |
|---|---|
| Brand | OB1 |
The OB1 Multi-Surface Construction Sealant adheres well to concrete, brick, masonry, metal, wood, glass, and many plastics. It is designed for a wide range of common building materials.
Yes, the formula is waterproof and weatherproof, making it suitable for both interior and exterior applications.
Curing times can vary depending on temperature, humidity, and the depth of the bead. Typically, it will skin over within a short period and fully cure over 24-48 hours, though this can be longer in adverse conditions.
Yes, the sealant comes in a tube that requires a standard sealant gun for application. The gun is not included with the product.
Generally, most sealants are paintable once fully cured. It is advisable to check the product's specific curing and drying times before painting and to test on a small area first.
Each tube contains 290ml of sealant and adhesive.
The black color is ideal for applications where the sealant needs to blend in with dark materials or for aesthetic purposes, such as sealing black paving joints or dark-colored fixtures.
Ensure the tube is properly seated in the sealant gun and the nozzle has been cut correctly. Check if the internal seal has been punctured.
Verify that surfaces were clean, dry, and free from contaminants before application. Ensure adequate pressure was applied during bonding.
Practice with the sealant gun on scrap material to achieve a consistent flow and pressure. Ensure the nozzle is cut to an appropriate size for the joint.
This can occur in very humid or cold conditions. Allow more time for curing, ensuring adequate ventilation. Curing times are estimates and depend on temperature and humidity.
Setup: Ensure the surfaces to be sealed or bonded are clean, dry, and free from dust, grease, and loose material. Cut the nozzle tip to the desired bead size and insert the tube into a standard sealant gun. Apply a continuous bead of sealant to one surface, then press the materials firmly together. For sealing joints, ensure adequate depth for the sealant.
Compatibility: This multi-surface sealant adheres well to a wide range of common building materials including concrete, brick, masonry, metal, wood, glass, and many plastics. It is recommended to test adhesion on a small, inconspicuous area if unsure about compatibility with a specific material.
Care: Store unused tubes in a cool, dry place, upright, with the nozzle intact. Keep out of reach of children. Dispose of used or unwanted product according to local regulations.
