33% Off
Sika

Sika 850ml Sika Boom Expanding Foam

★★★★★
101 reviews · 444+ sold
$43.50 $65.25 -33% OFF
You save: $21.75
Price reduced — was $65.25
19 people bought this in the last week
11 people have this in their cart right now
🔥 88% claimed — only 5 left at this price!
Only 5 left!
Qty:
30-Day Returns
Secure Checkout
Australian Stock
Last purchased 16 minutes ago by someone in Canberra
Ships in 1-2 business days Australia-wide delivery
Australian Stock Ships from AU warehouses
We accept:American Express Apple Pay Google Pay Mastercard PayPal Shop Pay Union Pay Visa

Sika Boom is an 850ml expanding polyurethane foam that fills, seals and insulates gaps and voids.

  • Volume: 850ml
  • Colour: Light yellow
  • Material: Expanding foam
  • Paintable: Yes
  • Sandable: Yes
  • Dry to touch: 15 min

The foam expands to fill cavities around windows, door frames and pipe penetrations, sealing against draughts and adding insulation. Once cured it can be trimmed, sanded and painted. Recommended for windows, door frames and pipes.

More about this product

Sika 850ml Sika Boom Expanding Foam is a high expansion, fast curing polyurethane foam ideal for fixing, insulating, and filling connection joints around windows and doors.

Features

  • 1-component multi-positioning foam for versatile application
  • Easy application with included nozzle
  • High expansion rate for effective filling
  • Fast curing for quick results

Specifications

Dimensions (W x H x D) 70mm x 400mm x 70mm
Weight 0.5 kg
Material Expanding Foam
Colour Light Yellow
Model Number 414038
Volume/Size 850ml

Sika 850ml Sika Boom Expanding Foam is suitable for both indoor and outdoor use.

Questions & Answers

Where is it used?

Filling and sealing gaps around windows, door frames and pipes.

Can the cured foam be painted?

Yes - once cured it can be trimmed, sanded and painted.

How long until it's dry to touch?

Around 15 minutes.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 135 reviews
5★
65%
4★
21%
3★
8%
2★
4%
1★
2%
✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
J
Jack T. 📍 Newcastle NSW
★★★★★
2 weeks ago
✓ Verified Purchase

Solid quality — very happy

Great little Sika 850ml — setup was easy and it works perfectly.

M
Mia S. 📍 Sunshine Coast QLD
★★★★★
3 weeks ago
✓ Verified Purchase

Really pleased with this

Honestly one of the easiest online purchases I have made. Ordered in the evening and had a tracking number by morning. Delivered to Canberra in 3 business days. Product is well made and does exactly what we needed. My partner is happy with it too. Highly recommend.

R
Ryan S. 📍 Wollongong NSW
★★★★★
3 weeks ago
✓ Verified Purchase

Highly recommend

Really impressed with the Sika 850ml — it looks and feels more premium than the price suggests. Delivery was quick and packaging kept everything safe. No issues at all.

S
Sophie H. 📍 Geelong VIC
★★★★★
1 month ago
✓ Verified Purchase

Great quality

Good quality and arrived ahead of schedule. Very happy.

D
Daniel P. 📍 Hobart TAS
★★★★★
1 month ago
✓ Verified Purchase

Brilliant Aussie deal

Been buying Sika gear for years and this is one of their better ones. The Sika 850ml quality is excellent — everything was included and setup took under 10 minutes. Had it at the door in Brisbane within 2 days. My son immediately claimed it for himself so I had to order another. 10 out of 10.

C
Chloe D. 📍 Darwin NT
★★★★★
1 month ago
✓ Verified Purchase

No complaints at all

Exactly as described. Quick shipping. Would buy again.

You may also like