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Passive Fire Protection
Sound Insulation

Sound Absorption
HPL (High Pressure Laminate)

Cubicles & Lockers
External Wall Cladding

Curved Fin Batwing Seal

Batwing acoustic and smoke seal minimises the opening and closing resistance of the door leaf due to its unique, curved elastomeric fins. These also help to ensure ongoing performance and durability in service.

  • Excellent acoustic performance – its 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 140-3:1995, 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 an IS8010 si threshold seal - no additional perimeter seal required. 
  • Curved fins allow easier door operation (Approved Document M).
  • Fully tested for performance and durability under the third party certification schemes CERTIFIRE and British Board of Agrément.
  • Ideal for upgrading existing fire rated doors to provide additional smoke protection and Document E acoustic performance.
  • Proven smoke performance from ambient up to 200°C.
  • Highly durable – tested to 1,000,000 opening and closing cycles on a full size door assembly, without failure.
  • Strong self-adhesive backing tape for fixing – tested on many surfaces including MDF and powder coated steel.
  • Flexible elastomeric fin material springs back to original shape to provide ongoing performance and durability in service.
  • Aggressive self-adhesive backing tested on many surfaces, including MDF. 
  • Available in a range of colours including white, cream, silver, grey, light brown, dark brown and black to blend with door designs.
  • Available in 10 x 10mm and 15 x 15mm sizes; plus 12 x 12mm kerf fitting version, and two Single Batwing® sizes.
  • Available in standard lengths of 1m and 2.1m. Other lengths to special order.
  • Min / max gap size required: 3mm / 4mm.

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