OTTOSEAL A 250 Acrylic Sealant

The caulking material for bitumen and moist surfaces

  • 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
  • Suitable for applications according to IVD instruction sheet no. 12+31+35 (IVD = Germanindustry association sealants)
  • Certified according to GOS
Technical Documentation
Product Color Options

For technical reasons, the colors shown may differ from the original colors of the products. For an exact color representation, please contact us to request the original color samples.


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