Fonodan BJ
Self-adhesive two-layer tape to silence drainage and waste pipes.
Self-adhesive tape for acoustic insulation of waste/drainage pipes.
Fonodan BJ
Fonodan BJ is a two-layer product: a self-adhesive high-density bitumen membrane thermally bonded to cross-linked polyethylene. It provides acoustic mass to the pipe body and removes resonant frequencies.
It increases insulation at the noisiest points of the pipework (junctions, elbows), reduces drainage-pipe noise in false ceilings, and is designed to minimise drainage noise in all types of buildings.
System insertion loss
The complete system gives an insertion loss IL > 17 dBA.
High tear strength
High resistance to tearing.
Reinforced bends
Double reinforcement at bends and junctions increases acoustic performance.
Prevents mould
Prevents mould growth in the insulation.
Two layers
Bitumen mass + cross-linked PE — adds acoustic mass to the pipe and damps resonance.
Fire reaction
Reaction to fire B-s1,d0 (EN 13501-1).
Sound Insulation
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