The transparent adhesive and sealant is a one-component adhesive and sealing compound of an altered polymer hardening with air moisture to an elastomer.
- Non corrosive
- Can be varnished
Application: suitable for many surfaces, such as glass, glazed surfaces, enamel and varnished wood, can be applied without primer. Sikaflex® 521 FC is not suitable for PP, PE, Teflon and bitumen grounds, for underwater or expansion joints.