Bostik Expanda Foam 500ml

Bostik Expanda Foam is a one component, multi-purpose polyurethane foam that will not shrink and cures to an airtight, moisture resistant seal. The straw adapter included with each can makes it easy to apply into gaps of all dimensions, even in difficult locations. It bonds well to timber, brick, concrete, galvanised steel, aluminium, glass fibre, cement sheet and plasterboard, and it is a strong insulator against heat and cold that also reduces noise, dust and draughts and blocks access by rodents.

Key Features

• One component, multi-purpose polyurethane foam
• Will not shrink, cures to an airtight, moisture resistant seal
• Straw adapter included for easy application into gaps
• Bonds to timber, brick, concrete, galvanised steel, aluminium, glass fibre, cement sheet and plasterboard
• Great insulator against heat and cold
• Reduces noise, dust and draughts, blocks access by rodents

Specifications

• Product: Expanda Foam
• Type: one component polyurethane foam
• Pack size: 500ml aerosol
• Weight: 0.6 kg
• Dimensions: 6.3 x 6.3 x 23.7 cm
• Application: general cavity filling and insulation

Applications

• Filling gaps around door and window frames
• Sealing around pipes, cables and penetrations
• Cavity filling and insulation in walls and roofs
• General gap filling and draught proofing

What You Need To Complete The Job

Use the included straw adapter to apply the foam, then trim the cured foam with a knife. For a paintable acrylic filler on small interior gaps use Bostik Acrylic Gap Filler, and for a construction adhesive use Bostik No More Nails. Browse the full Sealants range for the complete system.

Frequently Asked Questions

How does Expanda Foam work?

It is a polyurethane foam that expands after it leaves the can, filling the gap and curing to a rigid, airtight seal. Because it will not shrink, the cured foam holds its size and keeps the seal.

What materials does it bond to?

It bonds to timber, brick, concrete, galvanised steel, aluminium, glass fibre, cement sheet and plasterboard, which covers the common building materials around a house.

Can I paint over it?

Yes, once cured the foam can be trimmed with a knife and painted or rendered over to match the surrounding surface. Check the foam is fully cured before finishing.

What is the straw adapter for?

The straw concentrates the foam so it reaches into gaps of all dimensions, including awkward locations behind frames and around pipes where a direct can nozzle cannot fit.

Can I order for delivery or pickup?

Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.