Description
Illbruck Duct Sealant – 310cc Tube
The original and the best. Standard sized tube fits most sealant guns* and is designed to prevent air leakages in low, medium and high pressure ductwork.
Duct Sealant
Sealing product for ductwork connections. Duct Sealant helps reduce leakage at joints in ventilation systems. Professional-grade quality for lasting performance. Suitable for all standard duct materials and fittings.
£3.16
20% VAT added at checkout
In Stock – Available for next day delivery
Order before 3pm today for delivery by Monday 14th September
Frequently Asked Questions
Do I need both sealant and tape on duct joints?
For DW/144 Class C airtightness, use both: apply duct sealant to the male spigot before assembly, then seal the external joint with aluminium foil tape. For less critical applications, one method may suffice, but both together provide the best seal.
Is aluminium foil tape fire rated?
Yes — aluminium foil tape is inherently fire-resistant as it is made from metal. It will not burn or contribute to fire spread, making it suitable for use in fire-rated compartments and plenums.
Delivery Information
In Stock
Next Day Delivery — order before 3pm Monday to Friday for dispatch the same day.
Delivery Options
| Service | Estimated Delivery | Cost |
|---|---|---|
| Standard Delivery (UK mainland) | Next working day from dispatch | £15.95 +VAT (£7.95 for small items) |
| Free Delivery | Next working day from dispatch | Free on orders over £400 ex VAT |
| Click & Collect | Collect from our Leicester branch | Free |
| Scottish Highlands & Islands | 2-3 working days from dispatch | £36.95 +VAT |
Delivery Area
We deliver to all UK mainland addresses. Scottish Highlands and Islands deliveries may take a little longer. We are not currently delivering to Northern Ireland — Click & Collect remains available.
Questions about delivery? Call us on 0116 246 0031 or email sales@alphaair.co.uk
Returns Policy
Six-Week Returns — No Restocking Fees
We want you to buy with confidence. You can return any standard stocked item within six weeks (42 days) of delivery for a full refund — 100% of the item price, no restocking or handling fees. Trade and business customers get exactly the same rights as retail customers. See our Returns Policy for full details.
Return Conditions
- Items must be unused and in original packaging
- Custom-made, bespoke or powder-coated items are made to your specification and cannot be returned unless faulty
- Items must be returned with proof of purchase
- Return shipping costs are the responsibility of the customer unless the item is faulty
How to Return
- Contact our customer service team to arrange a return
- Pack the item securely in its original packaging
- Include your order number and reason for return
- Ship the item to our returns address
Faulty Items
If you receive a faulty or damaged item, please let us know as soon as possible — ideally within 48 hours of delivery, so we can claim against the courier on your behalf. We will arrange a free collection and send a replacement or issue a full refund. This does not affect your statutory rights.
Questions? Contact us at sales@alphaair.co.uk