8-Chemie OTTOSEAL® A 250 - Акриловый герметик

OTTOSEAL® A 250 - The caulking material for bitumen and moist surfaces.‎ Characteristics: Plastic sealant based on acrylate copolymer • Compatible with bitumen • Universal primerless adhesion on sheet metal, aluminium, copper, brass, glass, ceramics, bitumen, wood, concrete, masonry, plaster, tiles, roofing tiles, polyester, roofing felt, zinc etc.‎ • Adheres also on moist, smooth, non absorbent substrates • Immediately rainproof • Silicone-free • Compatible with coatings according to DIN 52452 • Good UV-resistance.‎ Fields of application: • Perfect sealing for roofers and plumbers • Sealing of air condition and ventilation systems • Safe sealing of joints with little expansion.‎ Standards and tests: • “Highly recommendable non-hazardous building product” according to building material list (TOXPROOF) of the TÜV Rheinland, Germany.‎ Additional useful information The sealing compound for bitumen can be used to seal dormers and penetrations as a barrier against building materials containing bitumen.‎ It functions as an alternative to PE film barriers.‎ For this purpose a sealant bead with a minimum thickness of 3 mm is applied to the joint.‎ Adhesion on moist, smooth, non-absorbant substrates is achieved even without using primers.‎ The maximum joint width should not exceed 10 mm and the sealant is only suitable for joints that show little movement, due to its plastic properties.‎ Because of its excellent adhesive power it tends to become stringy which can be avoided by jerking the cartridge away.‎ OTTOSEAL® A 250 remains slightly sticky; therefore face joints must be sealed afterwards with OTTOSEAL ® S 110 or S 120, which cure with non-sticky surfaces to protect the sealant surface from being soiled.‎ OTTOSEAL® A 250 is neither suitable for Styropor® oder Styrodur®, for expansion joints in buildings, skirting boards nor for sealing in underwater areas.‎