Epoxy resin is a thermosetting polymer used to impregnate CIPP felt and glass-reinforced liners during drainage rehabilitation. It is valued for its low odour, low styrene emissions and good chemical resistance, making it the preferred choice for residential and food premises rehabilitation across London. UK installations follow BS EN ISO 11296-4 and product-specific WRAS or Water UK approvals. Epoxy resins cure by chemical reaction between two parts and require careful temperature control during installation, with hot water or ambient cure systems commonly used. On post-installation inspection, an epoxy CIPP lining presents a smooth, pale interior with no detectable odour, an advantage over earlier styrene-based systems. Specifiers should confirm that the chosen resin is approved for contact with the relevant effluent type and that cured residue meets local environmental discharge consents.
Epoxy resin (CIPP)
Thermoset resin used to impregnate CIPP liners, valued for chemical resistance and low odour.
