The caulking material for roofs and moist surfaces

1-component acrylate copolymer plastic sealant

For outdoor application


  • Compatible with bitumen
  • No interaction
  • Immediately rainproof
  • Processable even in rain
  • Silicone-free
  • Very good adhesion even without primer on many moist, smooth, non-absorbent substrates
  • One product for all common applications in the roofing and plumbing sector, e.g. on bitumen roofing felt, glazed roof tiles, polyester, sheet metal, glass - see priming table in the technical data sheet.
  • Compatible with coatings according to DIN 52452
  • No interaction with existing and adjacent coatings
  • Can be painted and varnished – please observe application instruction in Technical Data Sheet
  • Optical adaptation and protective coating possible
  • Good UV-resistance
  • Long durability in exposed areas

Fields of application

  • Perfect sealing for roofers and plumbers
  • Sealing of air condition and ventilation systems
  • 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

Standards and tests

  • Suitable for applications according to IVD instruction sheet no. 12+31+35 (IVD = German industry association sealants)


Due to typographical reasons the colours shown below may differ from the original colours of the products. For an exact colour display please request our original colour charts.

310 ml cartridge
crystal clear
Packaging unit 20
Pieces per pallet 1200

Products, packaging Units and/or colours bearing order codes are available ex warehouse in standard commercial quantities.

A250 Kartusche