• Signup for the newsletter

The Expanding foam tape

Manufactured by Vita Cellular Foams. Vitaseal is a unique combination of a resilient foam and a water resisting binder. The combination produces a dry pre-formed strip seal used to resist weather ingress in windows, roofing and construction applications. The viscoelastic properties also offer noise and vibration damping.

Coils of expanding foam tape

foam tape roll

Vitaseal is an expanding foam tape manufactured using an open cell polyurethane foam heavily impregnated with acrylics creating flame retardant properties.

Under high compression the product will create a weather-proof foam seal, under low compression the product is suitable for draught sealing.

Vitaseal 600 expanding joint sealing tape is recommended for use in more extreme weather applications (tested to DIN 52453 Watertight Against Driving Rain) and is fully resistant to UV.

This expanding foam tape is supplied in rolls, pre-compressed to approximately 85%.

insulating foam

Vitaseal HPE has been developed for the more demanding application, especially in timber frame construction, where movement within the structure has to be accommodated whilst ensuring that a weathertight seal remains constant.

The open cell nature of the foam ensures good ventilation preventing moisture build up in the joint whilst still providing the thermal barrier and acoustic performance required.

As with the Vitaseal 600, HPE provides good stability to UV ageing and sealing against driving rain.


  • Perimeter seals for windows and doors
  • Expansion joints
  • Side/end laps on roofing sheets
  • Joints for portable or sectional buildings
  • Abutment seals for conservatories
  • Acoustic seal
  • Timber buildings
  • Ductwork
  • Sealing roof lights
  • Installation of solar panels
  • Caravan and mobile home manufacture


  • Quick installation
  • Easy to apply
  • Improves energy efficiency in buildings
  • Expands to find its own level
  • Seals against uneven surfaces
  • Clean product (in comparison to silicones and mastics)
  • Accommodates joint movement
  • Allows ventilation of joint
  • Easy to quantify usage
  • Minimal wastage
  • Can be painted after installation
  • Only need one product to make watertight
Expanding Foam Tape for Upvc Windows

Download the full technical data sheet of our expanding foam tape

Vitaseal has received accreditations from France, Germany and the UK

  • Emissions
  • Eco Materio
  • BBA


Tramiflex is an air & waterproofing membrane specifically designed for external peripheral joinery joints. The combination of Tramiflex Interior and Tramiflex Exterior prevents the appearance of condensation in the joints, caused by the difference in external and interior temperature. Tramiflex Interior has low condensation permeability (SD: 55m). Tramiflex Exterior is designed to evacuate a large quantity of water vapour towards the exterior of the building (SD: 0.1m).

Tramiflex can be used in conjuction with Vitaseal to provide high performance insulation with moisture permeability to reduce condensation.

Download the Tramiflex brochure

Vita Membranes for Air Tightness