lorient Batwing seal 2

Lorient Batwing Seal

The Lorient Curved Fin Batwing® acoustic and smoke seal minimises the opening and closing resistance of the door leaf due to its unique, curved fins.

  • Flexible elastomeric fin material springs back to original shape to provide ongoing performance and durability in service.
  • Symmetrical design ensures fins are always in contact with two surfaces of the door leaf, creating an air chamber to provide excellent acoustic properties.
  • Acoustically tested in accordance with BS EN ISO 10140-1: 2010 +A1: 2012 and proven to meet the requirements of Approved Document E. Will achieve a rating of 31dB Rw when tested on a typical FD30 door assembly, in conjunction with a LAS8001 si threshold seal – no additional perimeter seal required.
  • Effective smoke seal up to 200°C.
  • Aggressive self-adhesive backing tested on many surfaces, including MDF.
  • Variety of colours to blend with door designs.
  • Fully tested for performance and durability under the third party certification schemes CERTIFIRE and British Board of Agrément.
  • Tested to 1,000,000 opening and closing cycles on a full size door assembly, without failure.


  • Head and jambs of single and double leaf doors.

Use with

Specific product codes for this seal:

  • LAS1010, LAS1212, LAS1015, single Batwing® profiles: LAS1206, LAS1007, Kerf fitting profile: LAS1212K, LAS1206K.

Enquire Now