Dowsil 781 Silicone Sealant - Brown - 310ml

The working time is approximately 5 to 10 minutes. After this period, the sealant begins to skin over and becomes difficult to tool.

The sealant becomes tack-free within approximately one hour under normal conditions.

Yes, it is suitable for general internal sealing applications, including kitchens and bathrooms. Its WRAS approval also makes it suitable for areas in contact with potable water once cured.

Yes, it is listed by the UK Water Regulations Advisory Scheme (WRAS) for use in contact with potable water once it has fully cured.

Yes, Dowsil 781 Silicone Sealant can be painted over once it has fully cured. It is recommended to test compatibility with your chosen paint on a small, inconspicuous area first.

It provides excellent adhesion to a wide range of non-porous surfaces including glass, aluminium, painted surfaces, and composite boards.

The sealant can be applied in temperatures ranging from +5°C to +40°C.

Uncured sealant can be cleaned using a cloth dampened with a suitable solvent such as mineral spirits. Cured sealant must be removed mechanically.

Ensure the cartridge is properly seated in the gun and the inner seal has been pierced. Check for any blockages in the nozzle.

Verify the surface is clean, dry, and free from dust, grease, or other contaminants. Ensure the surface is compatible with silicone sealants (e.g., not excessively porous or treated with release agents).

Work in smaller sections and apply the sealant within the 5-10 minute working time. Ensure the ambient temperature is within the recommended application range.

Practice with a piece of scrap material. Ensure consistent pressure on the trigger and a steady movement of the gun along the joint.