New Deventer Sliding Sash Flipper Seal now available from Coastal Group

Coastal Group is excited to introduce the new Sliding Sash Flipper Seal – an innovative solution designed to enhance insulation, reduce noise and improve the smooth operation of traditional timber sliding sash windows.

As the exclusive UK distributor, Coastal Group is bringing this cutting-edge sealing technology from Deventer to joiners and timber window manufacturers seeking a superior alternative to traditional brush seals.

Manufactured from high-quality TPE, this advanced seal eliminates common issues such as dirt accumulation, wear and discolouration. Its hollow chamber design significantly improves thermal and acoustic insulation, while low-friction properties ensure effortless sash movement. Unlike brush seals, it remains completely concealed once installed, preserving the classic aesthetics of timber sash windows.

Loren Jenner, Managing Director of Coastal Group, commented: “As the exclusive UK supplier, we’re proud to bring this next generation sliding sash flipper seal to the market. Traditional brush seals can wear down, collect dirt and affect the smooth operation of sash windows. This new seal from market leaders Deventer is a game-changer, delivering long-lasting performance, increased tolerance and improved insulation. We’re excited to share it with customers.”

Key benefits of the Sliding Sash Flipper Seal:

• Superior insulation – reduces draughts and heat loss for better energy efficiency

• Improved working tolerance – allows for expansion and contraction

• Noise reduction – blocks external sound for a quieter living space

• Effortless sliding – low-friction TPE ensures smooth, long-lasting operation

• Invisible once installed – no visible brushes, preserving the window’s classic appearance

• Weather & UV resistant – withstands extreme conditions (-40°C to +120°C)

• Quick & easy installation – designed for a hassle-free fit without specialist tools

This latest innovation reinforces Coastal Group’s commitment to providing high-performance hardware and sealing solutions for timber joinery, window and door manufacturers.

The new Sliding Sash Flipper Seal is now available to order from Coastal Group in black or white.

For further details or to request samples, visit www.coastal-group.com or call 01726 871 025.