Products / Versico VersiFlex KEE HP

A polyester-reinforced PVC membrane modified with Elvaloy KEE HP, a non-volatile resin modifier that Versico says has a higher molecular weight than standard KEE and gives enhanced heat and chemical resistance, improved cold-temperature flexibility and a wider welding window. The technical data bulletin lists White, Gray, Tan and Light Gray, fully adhered, mechanically attached and induction-welded installation, an optional APEEL protective film, California Title 24 compliance, and says the membrane meets or exceeds ASTM D4434 (its feature list cites ASTM D4434 Type IV). The bulletin's APEEL section refers to shielding WeatherBond's PVC, a sister brand's name, in Versico's own document.