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

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Product details

Management number 211289128 Release Date 2026/04/04 List Price US$36.00 Model Number 211289128
Category

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.
Color Light Gray
Item Form Paste
Brand Name SIKA
Unit Count 10.1442 Fluid Ounces
Item Weight 0.42 Kilograms
Manufacturer Sika
Liquid Volume 300 Milliliters
Material Type Silane Terminated Polymer
Full Cure Time 24 Hours
Item Type Name Sikaflex 521UV Weathering Resistant Silane Terminated Polymer (STP) Adhesive Sealant, Light Grey, 300 ml
Included Components 1 cartridge
Surface Recommendation Door, Metal, Pipe, Wood
Water Resistance Level Waterproof
Global Trade Identification Number 07612894184518

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