illbruck making it perfect. Description 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, adhesives 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. Colour Black Property Composition Specific Gravity Skin Forming Time Tack Free Time Elongation at Break Movement Accommodation Elastic Recovery Application Temperature Service Temperature Storage Shelf Life Test Method Result plasto-elastic bitumen / rubber composites 1.23 at +23°C, 50% RH Approximtely 20 minutes at +23°C, 50% RH 60 minutes DIN 53504 S2 100% +5°C to +40°C -35°C to +110°C Store in dry conditions between +5°C and +25°C. 12 months when stored as recommended in original unopened containers OS111 Bituminous Sealant 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. Key Benefits • Can be applied to damp, wet or submerged substrates • Excellent adhesion to a wide range of materials • Long-term resistance to weathering, ageing and UV Necessary Tools • Cartridge gun and sharp knife. Protective Equipment USE IN WELL VENTILATED CONDITIONS and ensure all recommended protective equipment is worn during handling & use of this product. For full recommendation, refer to safety data sheet. Priming • OS111 has excellent primerless adhesion to many typical construction materials. For special situations, or if in doubt, please contact tremco illbruck Technical Services Department to discuss your requirements. Surface Preparation • Joint faces should be clean, free from dust, oil, grease, old sealant and any traces of contaminant which may affect adhesion. Any previously applied sealant/adhesive must be mechanically removed.

Bituminous Sealant illbruck making it perfect. • Thoroughly clean with a suitable cleaning solvent using the two cloth method, using one cloth dampened with the cleaning product to lift contaminants and a second clean dry cloth is used to remove any cleaner residue. • Apply masking tape to prevent contamination of adjacent surfaces. Joint Backing • If using as a sealant, if necessary back fill the joint with polyethylene joint backing in order to control the depth of sealant. Application • Cut off the end of thread with a sharp knife, avoiding damage to the thread. Trim the nozzle to the required...