Smoke & fire containment systems

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Batwing® Seals - BW300, BW310 and BW502


  • BW300 - surface applied smoke and draft gasket.
  • BW310 - kerf-fitting smoke and draft gasket.
  • BW502 - surface applied intumescent fire, smoke and draft gasket.

Lorient's popular BW300 and BW301 Batwing® smoke and draft gaskets are manufactured from two materials - a rigid PVC structure, and flexible elastomeric fins. A sophisticated co-extrusion process ensures a durable finished product, which provides exceptional smoke and draft protection, sound reduction, and durability. The new and unique curved fin design means doors are much easier to operate, with greatly reduced resistance from the gasket to opening, closing and latching.

The Batwing® range has now been further enhanced, with the introduction of the BW502. This provides all the smoke and draft benefits of the BW300 and BW310, but also contains a high performance intumescent core - providing the all-in-one solution for fire, smoke and draft containment.

All products are ideal for door perimeter sealing. All are supplied complete with strong self-adhesive tape, for easy “peel-n-stick” application.

ITS and UL listed for Category H. BW502 additionally holds Category G listing (20, 45, 60 and 90 minutes).

Please download the Gaskets for Fire Door Assemblies datasheet for specification details.

You may also find our FAQs on Gaskets for Fire Door Assemblies helpful.

MSDS available upon request. 

BW300 BW310 BW502