Damtec Multi 4mm Acoustic Underlay. Damtec Multi 4mm is a dense recycled rubber acoustic underlay, offering additional impact noise reduction over the 3mm for demanding acoustic specifications.
- 4mm thickness
- Supplied in 1m x 12m rolls (12m2 per roll)
- Recycled rubber composition
- Suited to direct stick engineered timber, bamboo and parquetry
- Higher impact noise reduction than the 3mm
Acoustic underlay is required by most strata and apartment buildings. Talk to us about the acoustic report your building needs.

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