This automatic acoustic seal for doors has a light weight mechanism which is self leveling when activated. This seal has passed a 100,000 cycle test. It is adjustable to suit the gap size needed and will not only act as an acoustic barrier but also help keep out drafts and keep in energy.
Can be cut back by up to 150mm
BS 476: Part 31:1 (Fire tests on building materials and structures) compliant
Excellent sound reduction
Protects against smoke
Ultra soft silicon bubble seal