Description
Elastic sealant based on Polymers with Silanes without solvents that cures by humidity.
Preparation
For optimal adhesion in structural bonding, for sealing stressed joints, or in cases of extreme and prolonged exposure to the elements or immersion in water, cleaning products and primers should be used on the substrates. Non-porous substrates such as tiles, glazed, powder-coated metals, aluminum, anodized aluminum, stainless steel and galvanized steel should be cleaned with SIKA Aktivator-205. Before sealing, the solvent must be allowed to evaporate (15 min - 6 h). Metals such as copper, brass, titanium-zinc must be cleaned with SIKA Aktivator-205. After a drying time of more than 15 minutes, apply SIKA Primer-3N as adhesion promoter, and then wait between 15 minutes and 8 hours before sealing. On porous substrates such as concrete, coatings, cements, mortars or bricks, they must be primed with SIKA Primer-3N. Before sealing, allow the solvent to evaporate (30 min - 8 h)
Use
Suitable for connection joints between porous and non-porous substrates.
Application
Supplied ready for use. After preparing the joint and the support, place the joint backing at the appropriate depth and, if necessary, apply the corresponding primer. Insert the cartridge or sausage into the gun and extrude the product into the joint ensuring total contact with it. Fill the joint, avoiding entrapment of air. Sikaflex AT Connection must be firmly smoothed against the joint lips to ensure full contact and adhesion. In order to achieve a good aesthetic finish, it is recommended to delimit the joint with a masking tape. This will be removed before the putty begins to polymerize. It is recommended to use water and neutral soap as a joint smoothing liquid to obtain an optimal sealing surface.
Reviews
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