SIKA Sikaflex PRO 11 FC Purform Polyurethane Sealant Sika The SIKA Sikaflex PRO 11 FC Purform polyurethane sealant is a high-performance adhesive designed for sealing and bonding applications in the building and construction sectors. Its next-generation Purform formulation provides exceptional resistance to weathering, UV, and moisture, ensuring long-lasting durability. It bonds effectively to a wide range of materials, including concrete, metal, wood, and plastics, while remaining flexible to accommodate joint movement. Sikaflex PRO 11 FC Purform is particularly recommended for expansion joints, facade joints, and structural bonding applications, offering reliable and long-lasting sealing performance. Learn more