It is with great excitement that we introduce Sauereisen's latest technological advancement, ConoFlex 381. ConoFlex 381 is an environmentally friendly 100% solids, elastomeric hybrid polymer lining which provides superior chemical resistance to a host of aggressive chemicals. Officially an aromatic polyurethane, this polymer lining exhibits outstanding flexibility. Think of ConoFlex No. 381 as an upgrade to competitive material based on improved chemical resistance and greater build characteristics.