Astroflame ASDB/SM Surface Mount Acoustic & Smoke Rated Door Bottom Seal 

ASTRO ASDB/SM SEAL is a automatic door bottom seal which is spring loaded to lift clear of the floor as soon as the door leaf is opened by a few millimetres.
An acoustically designed seal for face mounted applications. It is operated automatically by pressure against the door jamb on its adjustment block and seals when the door closes and retracts automatically when the door is opened.
Can be fitted inside (lock side using bumper provided) or outside of the door (non lock side)

Surface Mounted door bottom seal - drop down type.

Suitable for wooden or metal door assemblies.

Acoustically and smoke tested on proprietary fire doors

Aluminium body with self extinguishing PVC rubber coextruded seal and carrier.

Sound reduction of up to Rw 33dB*

Suitable for new and retrofit

Screw fixing (screws suppied)

Anodised satin clear finish

Tested to 200,000 cycles.

For data sheet please CLICK HERE