A multi-purpose one-component polyurethane adhesive/sealant that cures on exposure to atmospheric humidity. This high-quality Sikaflex®-221 is brown in colour and suitable for internal sealing and simple bonding applications. It bonds well to a range of substrates including metals, metal primers and paint coatings (2-C systems), ceramic materials and plastics.
NOTE: Sikaflex® 221 is suitable for experienced professional users only. Please seek manufacturer’s advice and perform tests on original substrates before using this product on materials prone to stress cracking.
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