Ureka Global Ltd
Unit 5 Decoypool Road
St Modwen Park
Newport
NP19 4RG

0117 971 1364
sales@thenamethatsticks.com

Woodstikk PU D4 Polyurethane Adhesive

Woodstikk® PU D4 is a single component moisture curing polyurethane wood adheisve with excellent water resistant characteristics.

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PRODUCT OVERVIEW

Woodstikk® PU D4 meets the requirements of BS EN 204 category D4 for water resistance.

Woodstikk® PU D4 can be used for many applications where gap filling properties, high strength and a high level of water resistance is required. Woodstikk® PU D4 has been successfully used for bonding many types of woods, plastic foams and other insulating materials to a wide variety of both rigid and flexible facing materials, including wood, metals and plastics. 

SIZES AVAILABLE

  • 1kg bottle (15 square metre coverage)

Featured Properties

  • Excellent water resistance – EN204 D4
  • Quick curing
  • Excellent bond strength on hard and soft woods
  • Bonds many substrates including non-porous substrates
  • Bonds Accoya

PREPARATION AND APPLICATION

Ensure that the surfaces to be bonded are smooth, clean and free from dust or other deposits. metals should be stored in a warm environment prior to bonding to avoid chilling of the glue line, which leads to extended cure times.

Most pre-finished metals have backing coats which are well suited to bonding. Some grades of Aluminium, Galvanised Steel and plastics however can be difficult to bond and may require the use of a primer. A test panel should always be prepared when new materials are to be used to establish the adhesives compatibility.

The adhesive is applied by trowel, notched scraper, hand roller coater or an automatic bead applicator, to one surface only of each glue line. The amount required will vary according to the porosity/smoothness of the substrates and the means of application, but will normally be in the range 80 - 140g per m²

Once the adhesive has been applied it should be over-misted with water (approximately 5-15% of water based on the adhesive coating weight is the optimum amount, excessive amounts of water should be avoided), the panel is then assembled as soon as possible, to minimise water evaporation and placed under pressure within the open time of the adhesive.

The pressure required will depend to a great extent on the nature of the substrates but is usually in the range 0.5 to 0.9 bar. Allow 24 hours for full strength to develop. Higher levels of water resistance form more slowly and should be tested not earlier than 7 days after bonding.

Handling and Storage

Woodstikk® PU D4 when uncured can be removed with cleaning solvent such as Aro-Bond® 686 Solvent or Aro-Bond® 689 Solvent. Cured product will prove very difficult to remove, however, soaking in Aro-Bond® 686 Solvent overnight will soften the adhesive. Nozzles from automatic bead applicators should be immersed in a non-reactive plasticiser when not in use.

Woodstikk® PU D4 is a moisture sensitive adhesive and left in contact with the open atmosphere will eventually gel. For this reason Woodstikk® PU D4 is protected with a blanket of Nitrogen in the drum prior to despatch, which forms a dry, inert layer on top of the adhesive. Woodstikk® PU D4 should be stored in the original containers in a cool, dry place, at a temperature range of between 5°C and 25°C. In these conditions it has a storage life of at least 12 months.

Once the container has been opened for use and the inert blanket replaced by moist air, the adhesive will have a limited life. To eliminate the moist air reacting with the adhesive a Nitrogen cylinder can be connected to the small bung hole of the drum, via suitable pressure reducing valves to give a positive pressure of 1 -2 psi.

Alternatively a desiccator can be connected to the small bung hole of the drum, which will dry the incoming air, replacing the adhesive used. A suitable desiccator with the relevant pipework can be supplied by Ureka. This will last for approximately 12 months prior to regeneration. Further information is available upon request.

If water enters the drum of adhesive, it will react giving off carbon dioxide which can cause over pressurisation of closed cans and drums.

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Questions & AnswersQ&A's

Andy Carleton1 Years Ago

Does this glue expand?

Bonita1 Years Ago

Hello Andy, thank you for your enquiry.
The Woodstikk PU liquid is a foaming product.

Downloads

PDF

Woodstikk PU D4 TDS

pdf

Woodstikk PU D4 Polyurethane Adhesive Technical Data Sheet

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PDF

Woodstikk PU D4 SDS

pdf

Woodstikk PU D4 Polyurethane Adhesive Safety Data Sheet

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Coverage Calculator

Use our adhesive coverage calculator to find out how much you need for your project.

Based on your m2 you need:

kg of Woodstikk PU D4 Polyurethane Adhesive.

Including 10% wastage.

How do we calculate this?

1kg of Woodstikk PU D4 Polyurethane Adhesive covers 15m2. You require enough product to cover m2 including 10% wastage. m2 / 15m2 per kg = kg of product.

Calculate Coverage

Coverage Calculator

Use our adhesive coverage calculator to find out how much you need for your project.

Based on your m2 you need:

kg of Woodstikk PU D4 Polyurethane Adhesive.

Including 10% wastage.

How do we calculate this?

1kg of Woodstikk PU D4 Polyurethane Adhesive covers 15m2. You require enough product to cover m2 including 10% wastage. m2 / 15m2 per kg = kg of product.

Calculate Coverage

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