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Sikaflex-290 DC is a one-part UV-resistant polyurethane based joint sealing compound specially formulated for caulking joints creating a tough, waterproof flexible bond between most materials, commonly used on traditional timber marine decking.
The Sikaflex deck caulking sealing compound cures to form a flexible elastomer which can be sanded. Sikaflex-290 DC is manufactured in accordance with the ISO 9001/14001 quality assurance system.
– One-part formulation
– Can be sanded
– Resistant to UV light and weathering
– Resistant to seawater and fresh water.
Areas of application:
Sikaflex-290 DC is used exclusively for the caulking of joints in traditional timber strip decking in boat and yacht building (secondary sealing).
Sikaflex-290 DC cures by reaction with atmospheric moisture. At low temperatures the water content of the air is lower and the curing reaction proceeds more slowly.
Sikaflex-290 DC offers an effective long-term resistance to fresh water, seawater, aqueous cleansing agents. The sealant is not resistant to solvents, concentrated acids, caustic solutions and chlorine containing cleaners. A brief contact with fuels or lubricants has no significant effect on the durability of the sealant.
The above information is offered for general guidance only. Test with actual substrates and conditions have to be performed to eusure adhesion and material compatibility.