Zouch Converters' impregnated expanding foam tapes have been used industry-wide to provide high performance gap fillers and weather seals on a variety of residential, commercial and industrial projects .

The foam tape has been fitted to thousands of windows, doors, ducts, mobile homes, conservatories and even solar panels.

ZOUCHexpandafoam BG1 is the tape of choice in today's building trade due to its outstanding performance and reliability credentials; from high profile hotels to personal building projects, this tape excels in its field. Assessed by the UK's prime authority in offering approval of construction products, systems and installers. The British Board of Agreement assessment covered weather-tightness and durability, confirming that the ZOUCHexpandafoam BG1 product will resist the passage of wind-driven rain, snow, run-off water and dust into the interior of the building with a service life of up to 20 years.


As well as being able to offer a cost effective and easy to install primary weather seal – it delivers improved energy efficiency, allowing ventilation of the joint whilst preventing wind and rain, as a guaranteed minimum.

ZOUCHexpandafoam BG1 is the ideal constituent to help seal timber-framed buildings where larger differential movement is the norm. The superior quality of the product ensures that it can accommodate movement of up to 40 mm as well as providing a watertight seal.

Incorporating fire resistant qualities, the versatile ZOUCHexpandafoam BG1 ranges can be widely used to provide simple, quick and effective gap seals to not only accommodate expansion, movement and water-tightness but also provide thermal and acoustic insulation, while still remaining permeable to trapped water and water vapour – so as to ensure that the exchange of air between a building's interior and exterior is not compromised. Quick and easy-to-apply, the self-adhesive ZOUCHexpandafoam BG1 tapes can be used to seal joints ranging in width from 2 mm to 40 mm with a single tape as an all-in-one solution.

The product can accommodate temperature resistance of -30°C to +100°C / 130°C (short term) making it one of the best performing tapes in its class. Once installed, a building is better protected from wind, rain and dust and is well-equipped to accommodate structural movement and fire infringement.