This fully mortised aluminium automatic drop seal features a silicone rubber gasket and internal fins. It is used to close the gap under single swing doors to maintain their acoustic, smoke or energy efficiency performance. The seal incorporates a high efficiency spring loaded mechanism that extends the seal as the door swings shut and automatically retracts it as the door is opened by just a few centimetres.
Key benefits
Standard lengths
820mm (may be trimmed back to 720mm)
920mm (may be trimmed back to 820mm)
1070mm (may be trimmed back to 920mm).
Gap sizes
Accommodates and seals gaps up to 13mm. Greater
gaps can be sealed if product is used with a threshold plate.
Fixing method
Fits into a 15mm wide x 35mm deep groove and retained in place by screw fixing through the seal flanges.
Finishes
Silver anodised aluminium with stainless steel end plates and grey silicone rubber gasket.