An unusal and rare breed indeed. A non-silicone, caulking sealnt that's compatible with bitumen. Ottoseal A250
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
Can be painted and varnished – please observe application instruction in TDS
Good UV-resistance OTTOSEAL® A 250
Fields of application
Perfect sealing for roofers and plumbers
Sealing of air condition and ventilation systems
Safe sealing of joints with little expansion
Sealing of joints and seams on the roof, including on damp substrates
Edge sealing of chimneys, metal profiles and parapet covers
Sealing of bitumen coats on masonry, concrete, etc.
Adhesion and joining of corrugated roofing tiles made from fibre cement, metal, PVC, polyester and bitumen (depending on the expected loads, e.g. wind suction, an additional mechanical attachment may be required)
Barrier of building materials containing bitumen for the subsequent silicone sealant
OTTOSEAL® A 250 Standards and tests
Suitable for applications according to IVD instruction sheet no. 12+31+35 (IVD = German industry association sealants)
