Macsim expanding polyurethane foam in a 500ml can for filling gaps, sealing joints, and insulating penetrations. Expands to seal around windows, doors, pipes, and cavities, reducing drafts and sound transmission. Cures to a firm, cuttable foam that can be trimmed, sanded, and painted. Ideal for construction, renovation, and maintenance tasks requiring fast, reliable void filling and thermal performance.

$13.90

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