OS111 Bituminous Sealant

OS111 is bituminous sealant and adhesive that can be applied on damp, wet or submerged substrates. It is ideal for: sealing leaks and making repairs, even on wet surfaces, as an adhesive for all types of roofing felts; including APP- and SBS- modified membranes, waterproof finishing of overlaps, connections and joints of roof edges, chimneys, light domes
and bushings for exhaust pipes, fixing rain water drain systems onto the roof, connection of damp courses and other waterproofing wall details (e.g. inner-walls), fixing overlaps of roofing felt at rising outer walls, temporary remedial or repair of plumbing.

Usage/purpose

OS111 is a high performance, bituminous sealant and adhesive that can be applied on damp, wet or submerged substrates. Ideal for a range of external weather sealing.

Contact with light-coloured plastics may cause
discolouration. Always test compatibility with polystyrene
before use as results can differ. Thick application and high
temperatures may lead to solvent entrapment and impaired
adhesion. OS111 is not over paintable.

Safety data sheet must be read and understood before use.
Flammable - keep away from open flames and other ignition
sources.