Apply sealant to the desired area using a sealant gun. Once finished, the joint should be tooled within 5 minutes of application to ensure good adhesion. For an extensive list of application methods, please consult the Technical Data Sheet. Clean up

Unfortunately, We Cannot Guarantee Next Working Day - you will be notified if we can't fulfill this. Excellent external weathering properties, therefore, can be guaranteed over many years worth of exposure.Please note the following postcodes are classed as Non-Mainland UK or Remote / Rural delivery: AB, IV, KW, PA, PH, HS, KA, ZE, PO30-PO41, IM, JE, GY, BT, TR21-TR25. making it the perfect partner for pointing doors and window frames, for weather sealing of curtain walling and roof lines, building facades and expansion joints to walls.

Safe for use on Sealed units due to its neutral cure will not damage the bonding glues or foils of the sealed units. Dowsil 791 or DC 791 is a low modulus, neutral cure, alkoxy, odourless silicone sealant. It is specifically designed for the weather sealing of building components where high movement is anticipated. Dowsil 791 adheres to a wide range of both porous and non-porous surfaces without the need for priming. CHARACTERISTICS High viscosity non-slump formula. In other words, it will hold it’s structure & body on even larger joints. Excellent tooling and slow skinning properties. Therefore, it is ideal for large scale construction and glazing applications.

Supporting Documents

Has excellent adhesion – adheres to most common surfaces. For instance, glass, metals, plastics and wood (painted or unpainted), uPVC and polycarbonate.