Home > Companies > Siderise Group > SIDERISE BM/P Series Barrier Mat (formerly Lamaphon BM-PX)

A thin, bitumen free polymeric sound barrier offering exceptional flexibility. Combines a high surface mass with ‘limp’ mechanical characteristics, the product offers optimum sound reduction and dampening performance. Primarily designed to improve the sound insulation value of existing panels of metal, wood, plastic, GRP etc. It is particularly effective in reducing the effect of coincidence dip resonance found in these stiff, lightweight materials.

Additionally the product may be used in sandwich constructions between board materials or as an internal membrane in built up composites where final flexibility is required. BM/P Series Barrier Mat is clean and simple to use and can be readily cut to size with a sharp knife.

Standard product features


  • BM-P3.5 – 8m x 1.2m (roll).
  • BM-P5 – 2 x 1.2 m (sheet), 6m x 1.2m (roll).
  • BM-P10 – 2 x 1.2 m (sheet), 4 x 1.2 m (roll).




Class 0.

Tensile strength (to UNE 104-281/6.6):

30 N/cm².

Elongation (to UNE 104-281/6.6):

300 %.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-80-40/400 Sound attenuators

Product specification

An important note about specifying



Siderise Group


+44 (0)1656 730833

Product reference

1.8 mm thick, 3.5 kg/m².
2.7 mm thick, 5 kg/m².
5.3 mm thick, 10 kg/m².

Manufacturer details

Forge Industrial Estate,
Mid Glamorgan, CF34 0AY
Tel +44 (0)1656 730833
Fax +44 (0)1656 812509
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