“I had a supplier tell me that he was getting a ‘stronger’ resin than the regular epoxy resin for lining I typically buy and that it would be a better choice as it’s stronger. Is that true, or is this just a sales ploy to get me to buy their stuff?”
Let’s review the standards for CIPP resin as noted in the ASTM F1216 and go from there.The standard says to use a resin/tube combination that meets a minimum 250,000 psi flexural modulus standard, a 4,000 psi flexural strength and a tensile strength of 3,000 psi. Those are the standards you
