Best current price£68.99from B&Q
Shopping.co.uk recommended and popular offers
B&Q£68.99Visit shop B&Q - Grey Multi-Surface Construction Sealant & Adhesive 290Ml Tube (6 Pack)Waterproof & Weatherproof Silicone
Visit shop2 offers from £68.99 - £76.54
View price history by clicking the chart icon.
The OB1 Grey Construction Sealant is for trade professionals and DIYers tackling construction, maintenance, and repair projects. Its key benefit is providing a durable, waterproof seal and strong adhesion across multiple surfaces, with a useful grey finish for color matching. A minor consideration is its standard 290ml tube size, which may require multiple tubes for larger jobs.
| Colour | Grey |
|---|---|
| Brand | OB1 |
Yes, the OB1 Grey Construction Sealant can be painted over once it has fully cured. Ensure the sealant is completely dry before applying paint.
Unopened tubes typically have a shelf life of 12-18 months when stored correctly in a cool, dry place. Once opened, it's best to use within a few weeks, ensuring the nozzle is sealed to prevent air exposure.
Yes, its waterproof and weatherproof properties make it suitable for use in kitchens and bathrooms, particularly for sealing around sinks, baths, and shower trays. Ensure adequate ventilation during application and curing.
Cure times vary depending on temperature, humidity, and bead size. Generally, it becomes tack-free within 1-2 hours and fully cures within 24-48 hours. Refer to the product packaging for specific details.
Yes, the OB1 sealant is designed for multi-surface applications and offers strong adhesion to a wide variety of common building materials, including wood, metal, concrete, and glass.
While this product functions as both, a sealant primarily fills gaps to prevent the passage of fluids or air, providing protection against weather. An adhesive is designed to bond two surfaces together strongly. OB1 combines both functions for versatile use.
No, the OB1 Multi-Surface Construction Sealant is supplied in a 290ml tube and requires a standard sealant gun for application, which is sold separately.
Ensure the tube's inner seal is properly punctured and the sealant gun is properly loaded and operated.
Verify that surfaces were clean, dry, and free from dust or contaminants before application. Ensure adequate pressure was applied during application.
Adjust the angle of the sealant gun and apply steady, consistent pressure. Trim the nozzle to an appropriate size for the gap being filled.
Work in smaller sections and apply the sealant promptly after starting. Ensure good ventilation, but avoid excessive airflow directly onto the bead.
Setup:
Compatibility:
This sealant is compatible with a wide range of common building materials including concrete, brick, plaster, wood, metal, glass, and most plastics. It is recommended to test on a small, inconspicuous area first, especially on sensitive surfaces.
Care:
