MMT Acoustix® Sound Insulation Pad
Sound Insulation Pads
A polyurethane sound absorber made from high-density acoustic foam for mid and high-frequency noise control, behind perforated panels, in machine canopies and on walls. Made by MMTPL at the Palwal plant, Haryana.


The problem it solves
What the Sound Insulation Pad fixes for you
Perforated panels that do little
Placed behind perforated wall and ceiling panels, it lifts their NRC.
Loud machines
Lines machine canopies for industrial noise control.
Noisy HVAC ducts
Duct and ventilation linings absorb mid and high-frequency noise.
Echo in auditoriums and theatres
Absorbs reflections for clearer sound.
Classrooms and lecture halls
Students hear speech more clearly.
Studio and home theatre reverb
Controls reflections in recording rooms and home theatres.
Applications
Where the Sound Insulation Pad goes
Behind perforated panels
Behind perforated panels
Wall and ceiling panels, for NRC enhancement.
Machine canopies
Machine canopies
Industrial noise control.
HVAC ducts
HVAC ducts
Duct linings and ventilation systems.
Also used in
- Generator enclosuresLining inside DG set canopies.
- Compressor roomsWalls around noisy equipment.
- Home theatresBehind fabric or wooden finishes.
- Recording studiosInside wall and ceiling build-ups.
- Plant roomsPump and AHU rooms.
- FactoriesMachine enclosures and partitions.
Specifications
Technical data
| Material | High-density polyurethane acoustic foam |
| Manufacturer | MMTPL, Palwal plant, Haryana, India |
| Sheet size | 1800 x 900 mm (6 x 3 ft) |
| Thickness | 10 mm to 750 mm |
| Density | 32 to 50 kg/m³ |
| NRC | 0.80 at 25 mm |
| Acoustic test standard | ASTM C423 |
| Frequency performance | Mid and high frequency |
| Fire rating | Standard grade non-FR; UL 94 Class HS1 fire retardant grade on request |
| Size tolerance | ±5% |
| Colours | Charcoal Black, European Blue, MMT Orange, Stone White, Wine, Fire Red |
| Installation | Direct mounting, adhesive, or behind perforated panels |
| Durability | Moisture-resistant, long-lasting |
| Country of origin | India |
Soundproofing: the fix for every sound problem
3-layer soundproofing
- 1
Layer 1: SoundBlanket® MLV
The dense barrier that isolates sound and stops it passing through walls, ceilings and floors.
- 2
Layer 2: BassBloc®
High-density sound absorber over the MLV that controls low-frequency noise.
- 3
Layer 3: Echsorbix®, SoundaXe® or WDWL®
The final acoustic finish: Echsorbix® PET felt, SoundaXe® wooden acoustics or WDWL® wood wool panels.
Layer 2 can also be covered with gypsum or cement board before adding the final acoustic layer.
Different thickness in each layer will give different STC and NRC levels.

Custom and OEM
Custom thickness and colours
Thickness from 10 mm to 750 mm to match the frequency range and cavity depth. Custom colours can be developed for volume orders, with BOQ, specification and drawing support for project quantities.
FAQs