MMT Acoustix® Door Seals
Soundproofing Door Seals
Sound leaks through gaps far more readily than through the door leaf itself. Three seals close the threshold and the frame: a metal bottom seal, a silicone bottom seal and an EPDM perimeter seal. Made by MMTPL at the Palwal plant, Haryana.

The range
Pick the seal for the gap
Metal Bottom Door Seal
Metal Bottom Door Seal
Carbon metal with a rubber insulation strip. Screw mounted to the door bottom, closes gaps up to 20 mm. View the metal bottom door seal.
Silicone Door Seal
Silicone Door Seal
Silicone with a concealed metal spine. Self-adhesive, flexes to uneven floors on doors up to 3 ft wide. View the silicone door seal.

EPDM Perimeter Seal
D-profile EPDM rubber, 6 x 6 mm, on a 6 m roll. Self-adhesive onto door or window frame rebates. View the EPDM perimeter seal.
Compare
Door seals side by side
| Spec | Metal Bottom Door Seal | Silicone Door Seal | EPDM Perimeter Seal |
|---|---|---|---|
| Material | Carbon metal with rubber insulation strip | Silicone with a concealed metal spine | EPDM rubber |
| Colour | Brown | Brown | Brown and white |
| Size | 900 L x 35 W x 35 H mm | 920 L x 15 W mm | 6 mm wide x 6 mm thick, 6 m per roll |
| Fits | Gaps up to 20 mm | Standard doors up to 3 ft wide | Gaps from 4 to 7 mm |
| Position | Door bottom (threshold) | Door bottom (threshold) | Door or window frame rebate |
| Installation | Screw mounted, trimmed to width on site | Self-adhesive, onto a clean dry door bottom | Self-adhesive |
| Best for | Sealing the threshold gap, the single largest airborne leak on most doors | Doors with uneven floor clearance | Perimeter of doors and windows |
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.

FAQs