Spray Foam Insulation

Isothane WBF- Open Cell Spray Foam

Isothane WBF


Isothane WBF is our KIWA approved (certificate BAR-18-048-P-A-UK) water blown open cell spray foam product. suitable for insulation purposes in a wide range of different properties across both the commercial and residential sectors, renovation or new build. Isothane WBF can be used to reduce air leakage as well as for sound deadening between floors.

Benefits or Uses

Isothane WBF is used for:

  • Retrofit insulation
  • New build insulation
  • Loft conversions
  • Commercial buildings
  • Sound deadening between floors

Isothane WBF can be used to upgrade the thermal performance of roofs, floors or walls of any property, to meet current building regulations. 


Technical Data

ISOTHANE WBF is a water blown, two component 1:1 ratio, soft foam system which when processed through suitable spray machinery will produce a rigid foam of approximate density 10 kg/m3. Service Temp range -15°C to 70°C. The system has Agrément Certification for pitched roof insulation.


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Isothane WBF Kiwa Certificate

The Isothane WBF certificate relates to Isothane WBF Roof Insulation, a spray applied expanding polyurethane foam, for internal application to the underside of pitched roofs with Type LR breather membranes (new build or retrofit). To download full certifcate please see the link below.



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Newhouse Road,
Huncoat Industrial Estate,

General Enquiries

Tel: +44 (0)1254 872555Email: info@isothane.com

Sales Enquiries

Tel: +44 (0)1254 872555Email: sales@isothane.com

Technical Enquiries

Tel: +44 (0)1254 872555Email: technical@isothane.com

Prepolymers & Export Enquiries

Tel: +44 (0)1254 872555Email: international@isothane.com


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