Impactafoam Acoustic Foam

Key Benefits
  • Impactafoam Reduces impact noise
  • Impactafoam is only 5mm thick
  • Impactafoam offers high compression strength
  • Impactafoam is easy to lay and cut
  • Good vapour barrier
  • Good chemical resistance
  • Impactafoam does not deteriorate or mildew
  • Impactafoam is made up of thousands of tiny cross-linked cells. Therefore even if some cells become punctured Impactafoam continues to perform, with good compression strength and low thickness loss.

Interested in getting a quotation? Fill in the online form and we’ll email one across to you within 48 hours.

Need Advice?

Impactafoam Downloads

Impactafoam is designed to form a resilient layer reducing impact noise transmission in concrete and timber floors. Impactafoam is an inert cross-linked closed-cell polyethylene foam, therefore providing a vapour barrier with good compression strength. 

Weighted impact sound pressure level (L) ISO 717 Impactafoam laid onto a structural floor of mass 384kgm2 with screed laid over.

50mm screed Lnw=61dB

70mm screed Lnw=60dB

100mm screed Lnw=58dB

Test carried out at acoustical House  EMPA, Dübendorf. Date of test 18.5.88

ISO 140-8 1998 Reduction of impact sound pressure level (?L) ISO 717-2 1997 Impactafoam laid onto a structural concrete floor with 6.8mm laminated floor laid over

?Lw 22dB

Test carried out at Sound Research Laboratories Sudbury, Suffolk date of test 15.1.01.

In a concrete construction, Impactafoam is laid as a membrane between a structural concrete floor of mass 300Kg/m2 and the finishing screed. For a raft floor construction Impactafoam batten strips are applied to the underside of the timber battens. In a conventional timber construction self adhesive batten strips are easily applied to the top of the floor joists. This forms a resilient layer between the joists and the boarding, reducing impact noise.

For full installation guidance, acoustic data and product specifications, please download the Impactafoam datasheet. If you are unable to find the information you need, please email your query to or call 01204 380074 for further assistance.


Ready to make a purchase?

Request a quotation

Need a sample?

Request a product sample here

Can we advise you?

Ask our experts now

Our professional, Institute of Acoustics registered technical department is on hand to give advice on all of our high performance acoustic products.  We're delighted to offer advice on any noise problem, be it a sound insulation or sound absorption issue.

Enquire now