STS Mega Strength PU Adhesive - Fast Set

€17,95

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  • 5 minute set time
  • Exceptionally high bond strength
  • Expands to fill small gaps, improving performance
  • Requires a Standard Applicator Gun

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STS Mega Strength PU Adhesive — Fast Set | 310ml

STS Mega Strength is a fast-set polyurethane adhesive formulated for bonding STS TG4 Construction Board. It is the recommended adhesive for TG4 installation, providing an exceptionally high bond strength that secures boards firmly. The water-free PU formulation expands slightly on application to fill small voids and surface irregularities beneath the board — ensuring full contact between the board and subfloor without excessive foam bleed — and cures to a 100% waterproof bond. 

Set time is 5 minutes, allowing boards to be positioned and held briefly before the adhesive grabs — significantly faster than standard construction adhesives and important when installing across large floor areas where working time needs to be managed efficiently.

Applications

  • Tongue and groove joints — suitable for bonding the tongue and groove joints between boards, locking the floor panel assembly together and eliminating movement at the board edges.

Product Benefits

  • 5-minute set time. Grabs and holds within 5 minutes of application, allowing the installation to progress without extended wait times between board placement and the next installation step.
  • Water-free formulation — controlled expansion. Standard PU adhesives react with moisture to generate foam, which can cause excessive bleed and lift boards away from the substrate if not managed. The water-free formulation in STS Mega Strength expands only enough to fill small gaps, maintaining flat board-to-subfloor contact without excessive foam.
  • 100% waterproof bond. Fully waterproof when cured, making it suitable for installation in areas subject to moisture exposure.
  • Exceptionally high bond strength. Polyurethane adhesives deliver significantly higher bond strength than standard dispersion or solvent-based construction adhesives, providing a permanent, rigid connection between the board and subfloor.
  • 310ml cartridge tube. Standard cartridge format compatible with a standard skeleton gun — no specialist application equipment required.

 

To quickly find out the shipping cost for your order simply add the required items to your cart. Place your cursor over the cart icon at the top of the page. Click on "Calculate Cart Shipping". Select your country and region and enter your postcode. The shipping rate will be displayed. If your country is not listed please contact us for a shipping quote.

UK Shipping Charges For Most Products

Orders with a value of £0.00 to £54.99 have a £7.00 carriage charge with tracked next working day delivery.

Orders with a value of 55.00 to £99.99 have a £12.00 carriage charge with tracked next working day delivery.

Orders with a value of £100.00 or more qualify for free next day shipping.

Excluded Items

For carts which contain Plasterboard, Soundproofing Mat, SilentBoard, QuietPanel, Silent Floor Ultra, M20 and R10 the following charges apply

£8.00 carriage for the first item and £4.00 carriage for every item added up to a maximum charge of £75.00.

Some soundproofing items have a minimum order due to shipping constraints.

Bulk Products have a £75.00 pallet charge per item.

Returns

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Non-returnable items:- Made to order items such as our Office Acoustic Panels and High End Audio Acoustic Panels, Gift cards.

To complete your return, we require a receipt or proof of purchase. Please contact us for your return authorisation number. Once your return is received and inspected, we will send you an email to notify you that we have received your returned item.

Exchanges

We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at info@advancedacoustics-uk.com and send your item to: Advanced Acoustics LTD, Unit B, Maunside, Green Line Industrial Estate, Mansfield, NG18 5GU, United Kingdom.