33% Off
Sika

Sika 310ml Black Sikaflex-221 Multi-Purpose Adhesive Sealant, Polyurethane

★★★★★
85 reviews · 628+ sold
$48.00 $72.00 -33% OFF
You save: $24.00
Price reduced — was $72.00
23 people bought this in the last week
10 people have this in their cart right now
🔥 88% claimed — only 5 left at this price!
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Australian Stock
Last purchased 11 minutes ago by someone in Geelong
Ships in 1-2 business days Australia-wide delivery
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Sika 310ml Black Sikaflex-221 is a one-component polyurethane adhesive and sealant for bonding and sealing a wide range of materials in a permanent, elastic joint.

  • Volume: 310ml (0.31L)
  • Material: Polyurethane
  • Colour: Black

Sikaflex-221 bonds metals, ceramics and plastics and creates durable, flexible seals that resist ageing, suiting both internal sealing and general bonding tasks. It is a versatile choice for vehicle, trailer and general fabrication work where a tough, weather-tolerant seal is needed.

More about this product

Sika Sikaflex-221 310ml Black is a one-component polyurethane adhesive and sealant designed for bonding a wide range of materials, including metals, ceramics and plastics.

It is effective for creating permanent, elastic seals and is resistant to ageing, making it suitable for internal sealing and general bonding applications.

Questions & Answers

What is Sikaflex-221 used for?

It is a multi-purpose adhesive and sealant for bonding and sealing materials such as metals, ceramics and plastics, and for creating permanent elastic seals.

What substrates does it bond?

It bonds a wide range of materials including metals, ceramics and plastics.

Is it flexible once cured?

Yes. It forms a permanent, elastic seal that resists ageing.

What size and colour is this product?

This is the 310ml black cartridge.

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 ★★★★☆ 115 reviews
5★
65%
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21%
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
J
Jessica L. 📍 Toowoomba QLD
★★★★★
2 months ago
✓ Verified Purchase

Already bought a second one

Placed the order in the evening and got a shipping notification the next morning. Arrived 2 days later in great condition. Product is well made and does everything it should. Really happy with the whole experience.

B
Ben A. 📍 Fremantle WA
★★★★★
2 months ago
✓ Verified Purchase

Quick delivery to regional QLD

The Sika 310ml arrived fast and works perfectly out of the box.

G
Grace W. 📍 Parramatta NSW
★★★★★
2 months ago
✓ Verified Purchase

Perfect gift — loved it

Bought this as a replacement for one I have had for years and I am glad I upgraded. The new one is noticeably better. Had a tracking number within a few hours of ordering. Packaging was excellent, nothing damaged. Already told a few mates about this site. Great prices and genuinely fast shipping.

O
Oliver H. 📍 Rockhampton QLD
★★★★★
2 months ago
✓ Verified Purchase

Arrived well packed

The Sika 310ml is a solid buy. I was a bit unsure about the size from the photos but it is perfect in person. Delivery was faster than expected. Very satisfied with this purchase.

N
Natalie F. 📍 Launceston TAS
★★★★★
3 months ago
✓ Verified Purchase

Better than expected

No issues at all. Fast delivery and exactly as described.

C
Chris N. 📍 Mackay QLD
★★★★★
3 months ago
✓ Verified Purchase

Great value for money

Spent a while looking for the right Sika 310ml and this kept coming up as the best value. I can see why — quality is impressive for the price. Delivery took just 2 days to Townsville which is great. Packaging was solid and everything intact. My partner and I both use it daily now. Highly recommended.

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