Sikaflex 521 UV Sealant 300ml

Sikaflex®-521 UV is a weathering-resistant, one-component Silane Terminated Polymer (STP) adhesive and sealant that provides reliable bonding to a wide range of substrates, including metals, ABS, PC, FRP, and wood, typically without the need for special pre-treatment. This versatile product is suitable for both internal and external sealing applications. Key points – Excellent resistance to ageing and weathering – Strong adhesion to many substrates without special pre-treatment – Isocyanate- and solvent-free with low odour – Can be overpainted and sanded