Polyurethane Prepolymers

Blocked Prepolymer


Isothane manufactures a nonyl phenol free blocked TDI prepolymer for use as a flexibiliser in 2K epoxy systems.

Technical Data

Product Isocyanate Type NCO Content (%) Viscosity 25ºC (cPs) Calculated NCO Equivalent Weight Calculated Epoxy Equivalent Weight
Isobloc C11 Blocked TDI 2.1 – 2.4 (Blocked) 15,000 – 55,000 1750 – 2000 (Blocked) 875 – 1000


Related Articles

Evaluation of the Physical Properties of Epoxy Resins modified with blocked TDI prepolymer

Karl Prescott Isothane Ltd, Newhouse Road, Huncoat Business Park, Accrington, Lancashire. BB5 6NT. United Kingdom. ABSTRACT Coatings based on epoxy resins have a number of good characteristics but are prone to brittleness, which limits their use in areas where good impact resistance and flexibility are required. Incorporating a blocked prepolymer into the epoxy increases the…

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Newhouse Road,
Huncoat Industrial Estate,

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

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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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