GSA Expanding Foam 500ml Insulation Gap Sealant Polyurethane Spray
Regular price
$29.99 AUD
inc. GST
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GSA Expanding Foam 500ml Insulation Gap Sealant Polyurethane Spray
GSA Expanding Foam is a high-performance polyurethane spray foam designed for sealing, filling, and insulating gaps, cracks, and cavities in building construction and maintenance projects. It expands on application to create a durable, airtight, and weather-resistant seal.
- High Expansion: Expands rapidly to fill gaps and cavities efficiently
- Insulating Properties: Excellent thermal and acoustic insulation
- Durable Seal: Creates long-lasting, airtight, and weather-resistant bonds
- Easy Application: Aerosol can with straw applicator for precise control
- Versatile Use: Suitable for doors, windows, wall cavities, and general building gaps
- Paintable & Sandable: Can be trimmed, sanded, and painted once cured
Application
- Intended Use: Ideal for sealing gaps, insulating, and soundproofing in construction and DIY projects
- Application Surface: Ensure surfaces are clean, dry, and free from dust, oil, or grease
- Usage Instructions: Shake can well, attach straw applicator, and dispense foam carefully; allow expansion and curing
- Curing Time: Surface tack-free in 10 minutes; fully cured in 8–12 hours depending on temperature and humidity
- Coverage: Approximately 30–40 litres of cured foam per 500ml can, depending on gap size
- Storage: Store upright in a cool, dry area away from heat, sparks, or open flame

