Sikaflex®-221 White (10 oz. cartridge - case of 24) Cylinders particularly aluminum

particularly aluminum

Enduring Compatibility- For full compatibility and peace of mind

2-94 certified- Bonds well to a wide variety of substrates without the need for special pre-treatment- Resistant to UV radiation- Resistant to aging and weathering- Capable of withstanding high dynamic stresses- Very low VOC content- Silicone and PVC-free- Isocyanate-free- High recovery- Elastic- Low odorUsageSikaflex-552 is suitable for structural joints that will be subjected to dynamic stresses

Seek manufacturer’s advice and perform tests on original substrates before using Sikaflex®-521 UV on materials prone to stress cracking

metal primers and paint coatings (2-c systems)

Sikaflex®-221 White (10 oz. cartridge - case of 24) Cylinders particularly aluminumSikaflex 221 is a high quality multi purpose non sag 1 c polyurethane sealant adhesive that cures on exposure to atmospheric humidity to form a durable elastomer. Meets approvals ASTM C920 types Sikaflex 221 is tested and classified in accordance with ANSI UL 723 Test for Surface Burning Characteristics of Building Materials. Advantages Highly elastic and durable Resistant to aging and weathering exposure Non corrosive Can be sanded and overpainted