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doitBau® deflexx

System adhesive tape for airtight bonding


Due to its acrylic adhesive, this single sided system tape is optimised for the airtight bonding of penetrations. It is applied in overlaps around the penetration, one half on the vapour barrier and the other half on the construction element. The bias-cut structure of the elastic PE foil compensates movements of the construction elements and thereby guarantees a permanent airtight sealing.

  • Extremely flexibleh
  • ƒCreates airtight joints according to DIN

Technical data

Material LDPE film / PES/PVA mesh scrim Temperature resistance -40 °C to +80 °C
Adhesive Modified acrylic dispersion Application temperature +5 °C
Colour Black Area of application According to DIN 4108 Part 7, SIA 180
Coating weight 210 g/m2 ÖNORM B 8110-2, EnEV