Expanding Foam Tape - Impregnated 80kg
Expanding Foam Tape - Impregnated 80kg


This Expanding Foam Tape with an 80kg density that can also be used as an acoustic tape, is a pre-formed expanding foam sealant produced by impregnating permanently elastic, high density open cell polyurethane foam with chemically stabilised acrylics. The product is manufactured by partially filling the open cells with the impregnation and compressing it. Sealing properties are dependent on the level of compression and typically for weather tightness, a 4 X compression ratio is required.

Supplied pre-compressed for easy location, Flowseal remains permanently elastic and once applied will expand to fill the joint including any irregularities or imperfections by a combination of the effects of the impregnation and the back pressure of the expanding foam. It displays excellent resistance to UV, mildew and ageing and will not crack, split, bleed or dry out whilst performing throughout continuous moving cycles.

Features and Benefits:
  • Creates a weather tight seal
  • Expands to fill voids and undulations
  • Excellent UV Resistance
  • B1 Fire Rating
  • Does not dry out
  • Durable and resilient for movement joints
  • Suitable for uneven surfaces within gap
  • Ease of application
  • Less chance of joint failure
  • Will not extrude from joint when squeezed
  • Polyester scrim prevents stretching of material during installation
  • Can be used across a large temperature range
  • No cleaning down after installation
  • Saves time & money


  • Sealing of gaps between window & door frames
  • Sealing between concrete sections
  • Sealing between sill and brickwork
  • Sealing of double casement windows
  • Sealing of sky-lights and roof-lights
  • Sealing of roof constructions

Getting the size and dimension right to suit your individual application is essential when using this material to make sure you achieve the correct seal integrity. Therefore the following compression ratio's are required;

Air, Dust & Semi Acoustic Seal - Expanded Foam Thickness = twice the gap size

Penetrating Water Seal & High Acoustic Seal - Expanded Foam Thickness = four times the gap size


Gap Size = 10mm with an air & dust seal required
Expanded foam thickness required - 10mm x 2 = 20mm

Gap Size = 10mm with a water seal required
Expanded foam thickness required - 10mm x 4 = 40mm

Product Information

Please follow the link above to view product information and dimensions for our expanding foam tape.

Size and Quantity:
Bespoke sizes and die cuts are available  on request.

Colour: Black

Item Code: FL4580 - Expanding Foam Tape 80kg

All prices are based on one carton.

If you cannot find the expanding foam tape you need, size you are looking for or you need more help in ordering this product please call us 01724 749020 or simply e mail for details - sales@stickyproducts.co.uk