Bostik Seal-N-Flex Fc Black 300ml is a fast-cure polyurethane construction sealant for joints and perimeter sealing. It offers durable flexibility and strong adhesion to common substrates including concrete, masonry, metals and timber. Weather-resistant and suitable for exterior use, it accommodates movement and resists the elements. Ideal for expansion joints, control joints and facade sealing. Apply with a standard caulking gun, tool for a smooth finish, and allow to cure before painting as recommended.

$19.50

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