Sika Sikaflex 521 UV – Weathering Resistant STP Adhesive Sealant – Multipurpose – Low Odour – Age and Weather Resistant – Light Grey – 300ml

Need a multipurpose sealant and adhesive for your construction work? Sikaflex 521 is a light grey adhesive sealant designed for use without primers and minimal preparation. The durable formula is crafted using 1-component Silane Terminated Polymer (STP) and cures to a flexible finish in ambient moisture. Use this low-odour formula inside and outside on timber, metals, metal primers and paint coatings, ceramic materials and plastics for a long-lasting, durable finish resistant to ageing and weathering. Apply using a hand, pneumatic or electric-driven piston gun, and it should cure in 24 hours. Once dry, sand or paint over it for a professional finish. Also available in white and black.

• PROFESSIONAL PRODUCT – Designed for use by professional applicators.
• DURABLE FORMULA – Once cured, this flexible polymer adhesive is resistant to ageing and weathering, ensuring long-lasting bonds.
• WIDE RANGE OF APPLICATIONS – Ideal for bonding a wide range of substrates without the need for priming, including timber, metals, metal primers and paint coatings, ceramic materials and plastics.
• ADAPTABLE AND SAFE – This Sikaflex sealant is crafted from isocyanate and is solvent-free, meaning it's flexible and can be safely sanded and painted once cured.
• SUITABLE FOR INTERIOR AND EXTERIOR USE – Use this hardwearing, long-lasting and protected grey sealant anywhere regular or flexible finishes are required.
• THREE COLOURS AVAILABLE – Apply this light grey sealant using a hand, pneumatic or electric-driven piston gun. Also available in white and black.