“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.”
Mick Brown, Leicester
Sign up to our
newsletter to get
help & assistance,
& a 5%
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. The 30 minute cure time gives you time for assembly.
It will also bond most building materials (including ceramics, metal & plastics). It is totally waterproof and conforms to D4 specification.
Construction Chemicals Wood Weld PU - 30 Minute Cure
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
30min 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.
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
Select your timber
Apply a small amount of Wood Weld PU
Cramp your joint
Wait 30 minutes
Un-cramp, joint bonded
Trim off excess adhesive when cured
Chemical Base: Polyurethane
Solids Content: 100%
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.
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.
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.
In the unlikely event that goods are faulty then we will replace them free of charge.
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:
For items under 1m in length & 2kg in weight, send them back from your local post office
For larger items, call our customer service team on 0116 2301955 for further advice
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
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.
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.
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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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