Sikaflex-11 FC + is a versatile rubber adhesive and joint sealant with very good application properties that bonds and seals most substrates of building materials. Internal and external use. USESAdhesive for adhesive components andmaterials such as:▪ Concrete▪ Masonry▪ Reconstructed or cast stone▪ Ceramics▪ WoodΤα Metal▪ GlassA sealant for sealing vertical and horizontal joints.