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What Our Customers Say

“Construction Chemicals, for products and service are second to none. The friendly and helpful service of the company always goes above and beyond any other supplier with their expert knowledge, advice, service and aftercare.The Tanking Slurry which I have used myself is a reliable, excellent product. I would certainly use these products again and again and would recommend this company and their products to everyone without question.I am a plasterer covering all aspects of the trade including lots of cellar work. I have known Jim for over 25 years. Construction Chemicals have provided me with a great service over many years and the technical backup is first-class. It is a very friendly service & nothing is too much of a problem. Finally, I consider them friends.”

Scott King - S King Plastering,

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Wood Weld PU - Wood Adhesive - 5-10 Minute Cure - 310ml

Over 2 million cartridges sold - no failures. If you are not 100% happy with this product we will give you a full refund.

Wood Weld is the ultimate wood adhesive & is the choice of most of the UKs major joinery companies. It bonds all timbers (hardwood & softwood) including Accoya. This bond is unbreakable once cured.

It will also bond most building materials (including ceramics, metal & plastics). It is totally waterproof and conforms to D4 specification.

SKU 75C3
Our price: 21.75
Excluding VAT
26.10 Inc. VAT


Delivery: FREE

2 million cartridges sold, no failures

Construction Chemicals Wood Weld PU

Construction Chemicals Wood Weld PU is a single component, solvent free, moisture curing polyurethane adhesive. Wood Weld PU is the ultimate adhesive that will bond most building materials to almost any other material. It is totally waterproof and conforms to D4 specification. Wood Weld PU is Thixotropic and is therefore less messy than most other polyurethanes.

Wood Weld PU expands slightly when curing and therefore gives a weld like unbreakable bond to all materials. Wood Weld PU is a rapid curing, gap filling, polyurethane adhesive which can be used to bond all timbers (even wet or dry timber), concrete, polyurethane foam, expanded polystyrene, and other porous and non porous substrates. Once polymerised Wood Weld PU is totally waterproof.

Wood Weld PU cures by mass therefore offers a high initial bond with a very fast handling strength.


Customers demand products that will be reliable in all bonding situations.



  • A single part, ready to use adhesive

  • Will bond most building materials to almost any other material

  • Totally waterproof and conforms to D4 specification

  • Fast curing and gap filling

  • Thixotropic - therefore very controllable

  • The ultimate joint and shopfitting adhesive



  • Thixotropic It stays where you put it, less mess

  • Rapid cure Less cramping time, saves labour costs

  • Easy to use Standard 310ml cartridge

  • High temp resistance Can be used near ovens and light boxes

  • 10min cure Flexibility of adhesive when assembling

  • No "adhesive run off" (as with liquid PUs). Less waste and no time cleaning joints



Wood Weld PU is a rapid curing, gap filling, polyurethane adhesive which can be used to bond all timbers (even wet or dry timber), concrete, polyurethane foam, expanded polystyrene, and other porous and non porous substrates. Once polymerised, Wood Weld PU is totally waterproof.

Wood Weld PU cures by mass therefore offers a high initial bond with a very fast handling strength.

Wood Weld PU can also be used for:

  • All joinery and shop fitting applications in particular oak framing, stair case building or where extra bond strength and speed is required.
  • Bonding natural timber and laminate floor boarding, including bonding to asphalt.
  • Can be used on resinous timber with no loss of bond strength.
  • Ideal for pre treated timber when bonding with PVA is difficult.
  • Boat building.
  • Building applications, bonding bricks etc.
  • Will also bond plastics, metals, MDF. The list is endless



  • Ensure surfaces to be bonded are clean and free from grease, dust and any other contamination.
  • To ensure best results when cleaning use Cleaner 3 (Flammable) allow solvent to evaporate before bonding.
  • Dry porous materials usually contain sufficient moisture in order to create curing.
  • Some metals i.e. untreated aluminium and galvanised steel require over spray with water in order to achieve a quick cure.
  • Assemble before 5 minutes and apply an even pressure across the whole bond area whilst the bond cures.
  • Allow the bond to fully cure usually 25-30mins.
  • Allow excess adhesive to fully cure then trim off with a sharp edge, do not try to wipe of uncured adhesive as this will only make final cleaning more difficult.


How It Works

Wood Weld PU is a moisture-curing adhesive, therefore as soon as soon as it is dispensed from the cartridge it is exposed to moisture and begins to slightly expand, when the timber is cramped together this expansion continues and forces the adhesive into the grain of the timber at the same time as curing.

This action welds the timber together extremely fast giving a joint that is stronger than the timber.


Easy to Use

  1. Select your timber
  2. Apply a small amount of Wood Weld PU
  3. Cramp your joint
  4. Wait 30 minutes
  5. Un-cramp, joint bonded
  6. Trim off excess adhesive when cured


Technical Details

  • Chemical Base: Polyurethane
  • Solids Content: 100%
  • Appearance: Translucent
  • Viscosity Brookfield RVTI 20uC Thixotropic paste V = 5; 200,000mPas, V 50; 55,000 mPas
  • Density: 1.03 @ 20 degrees Celsius
  • Skin Formation Time: 5 mins @ 23 degrees Celsius  
  • Application Temperature: 10-25 degrees Celsius
  • Packaging: Wood Weld PU is available in 310m cartridges


Handling & Storage

Handling: Keep containers tightly closed and dry. Avoid temperatures below 10 degrees Celsius or above 50 degrees Celsius. During use, ensure efficient exhaust ventilation in the working area is required if the materials is being sprayed or heated above 50 degrees Celsius.

Wood Weld PU has a maximum shelf-life of 12 months.

Delivery Information

We offer free UK mainland delivery. If you are not on the mainland, please give us a call on (0116) 230 1955 and we can give you an accurate delivery price. We make deliveries to Europe and to the rest of the world.

Please call us on (0116) 230 1955 to discuss an accurate shipping price. In certain cases, deliveries to the Highlands of Scotland & Northern Ireland may incur extra shipping costs. If such a situation arises, we will call you as we process the order in order to discuss this.


Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.

If you have any questions please call our customer service team on 0116 230 1955 or email us at


How to Get Items Ready for Return

Under our 30 Day Returns policy you can return faulty or unwanted goods.

Items should be unused, in a saleable condition, in original packaging and with all component parts and any promotional items received. You should include your invoice.

Faulty Goods

In the unlikely event that goods are faulty then we will replace them free of charge.

Unwanted Goods

Unwanted goods can be returned at the cost of the purchaser & will incur a 20% restocking charge. 

Certain items are excluded from the guarantee. These include goods that are made to order,or mixed to your requirements. Other excluded items are macerators and water pumps as well as parts of larger kits.


How to Return an Item

There are four common ways to return an item:

  1. For items under 1m in length & 2kg in weight, send them back from your local post office 
  2. For larger items, call our customer service team on 0116 2301955 for further advice
  3. We also offer a carrier pick up service, however, depending on the circumstances, this may incur a charge. For more information call our customer service team on 0116 230 1955
  4. For products delivered directly from our suppliers, please call our customer service team on 0116 2301955


Time After Purchase

If you purchased the item less than 30 days ago you can return it under our 30 Day Returns policy

If you purchased the item more than 30 days ago our aim is to get the problem put right as quickly as possible. In most instances we will either offer a replacement item with the same or an equivalent product.


If the item has already been installed, call us on 0116 230 1955 for further advice.

Expert Support

It can be difficult getting it right for your project & so we'd like to offer two ways of helping. The first is telephone support, the second is project specification for contractors.

Telephone Support

We aim to win with customer support. We have experts you can ask & we want your custom. Please call us on:

0116 230 1955

Monday to Friday 9am - 5pm

Free Product Specification Service for Contractors

In order to assist our customers with their projects, we are happy to offer a free Project Specification Service to ensure that contracts and work are specified correctly  and the list of materials required is as accurate as possible. Our Technical Team has many years experience in Dampproofing, Tanking and Waterproofing situations both here and abroad.

We recognize that our customers are involved in large & complicated projects, our aim to offer a service to help them get it right.

The benefits of the project specification service are:

  • Appraisal of the requirements of your project from an expert
  • One to one Conversation with the Technical Team, if required
  • A free specification for project planning purposes
  • A site visit if required
  • A Professional Indemnity Insurance-backed specification for peace of mind

Please call us on:

0116 230 1955

or email us at

no1 We Have Our Own In-house Chemist

This gives our customers access to first-class technical advice just by picking up the 'phone or emailing. We offer an unrivalled technical service that aims to give our customers the information they need to carry out their work with the right materials. This gives them and their customers confidence.

no2 We Have Local, UK-wide Coverage

We have 3 depots covering the whole of the UK. This benefits our customers because they can arrange for local pick-ups, they get faster, more flexible deliveries, & we have large stocks readily available.

no3 We Have Our Own Transport Network

For a great many of our products, we offer a personal delivery service, giving faster delivery, more security & less frustration.

no4 We Manufacture Our Own Products

We have control over our products and manufacture to a consistent specification. This means that our customers can expect the same high-quality materials, time and again.

no5 Our Directors Have Over 100 Years of Experience in the Industry

This provides our customers with first-class technical advice & a first-rate service & a team that understands your needs & your working environment.

no6 We Have an Experienced Team of Office Staff

All of our staff have worked for us for many years & know their products & have technical expertise. The quality of support is far superior to DIY chains and to our online competitors.

no7 All Non-Construction Chemicals Products are Sourced from ISO 9000 Companies

This means that all goods for sale from Construction Chemicals are of the highest quality. We only work with companies that have a proven track record.

no8 We Have a Large, Experienced Sales & Technical Support Team

Our sales & technical support staff cover the whole of the UK enabling you to get the materials you want for the job you need to complete, when you want to.

no9 We Offer Multiple Credit Options

We offer full credit, credit card & PayPal facilities making it easier for customers to buy and for trade customers to keep an account.

no10 We Stand by the Quality of Our Products & Our Relationship With Our Customers.

If a customer is not happy with their products, we will replace them without question.

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Need Technical Support? Ask Jim

Jim has decades of experience with all our adhesives, tanking products, dampproofing, timber treatment & general building chemicals. If you have a problem with application, specification or getting the right product for joinery, shopfitting or construction please call Jim on 0116 230 1955 or mobile 07768 365255

ask now