Vycor PRO provides premium protection against water infiltration in all critical non-roof detail areas. Its aggressive adhesive creates a superior barrier against air and water intrusion. It is a self-adhering flashing composed of durable engineered polypropylene sheet, paired with an aggressive, non-asphaltic, butyl-modified adhesive that seals around fasteners and forms water-tight laps. Its excellent low temperature adhesion and high in-service temperature limit make it a versatile product for use year round in all climates. The product's superior adhesive capabilities, its compatibility with flexible PVC window flanges and many other building materials, its extended exposure time, and flexible application make Vycor PRO an ideal building solution for many jobsite conditions.

It is composed of a durable, tear and puncture resistant engineered polypropylene backing film, paired with an aggressive, non-asphaltic, proprietary butyl-modified adhesive.