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PU012
PU Wood Adhesive

A low viscosity PU adhesive designed for rapidly bonding wood to wood.

Usage/Purpose

For interior and exterior use

PU012 is a liquid PU adhesive designed for bonding wood to wood. It is suitable for full water immersion, even in seawater. It is ideal for the manufacture and lamination of composite panels and will bond many different types of foam and insulation materials to a wide variety of rigid and flexible facing panel types. Typical uses are in the manufacture and erection of cold stores, caravans, mobile homes, offices and insulated building units. 

  • Waterproof adhesive suitable for external use - meets the requirements of EN 204 (D4)
  • Forms an exceptionally high bond strength to most building materials, even damp substrates
  • Gap filling action achieves a high strength bond with irregular or uneven substrates
  • Outstanding bond strength without the need for priming or surface treatment
  • Longer open time allows for accurate placement

Preparation

  • Always carry out a test to confirm compatibility prior to use.
  • All surfaces to be bonded must be close fitting, degreased, clean, and free from dust and any other contamination.
  • Dampening the surfaces to be bonded with a moist cloth or spray can increase the rate of cure.
  • Metals should be stored at room temperature prior to bonding to avoid chilling the glue line. 
  • Most coated and pre-finished ready for painting metals are well suited for bonding. Some grades of aluminium  galvanised steel and plastics can be difficult to bond and may require the use of a primer.

Usage Guidelines

  • Apply using a trowel, notched scraper or hand roller to one of the surfaces to be bonded along the glue line. The amount applied will vary according to the porosity/smoothness of the substrates and the means of application but would normally be in the range of 80 - 120 ml per m².
  • Once the adhesive has been applied, a light misting of water should be applied. About 5 - 7.5% of water by weight based on the adhesive coating weight is ideal. Avoid excessive amounts of water.
  • Assembly should then take place with the application of pressure/clamping as soon as possible to minimise water evaporation and within the open time of the adhesive.
  • The pressure required will vary depending on the substrates used but will typically be in the range of 0.5 to 0.9 bar.
  • The pressure should be maintained until the adhesive has cured sufficiently to permit handling of the bonded item.
  • Full cure will not be obtained for 24 hours and handling within this period should be kept to a minimum.

Health + Safety Precautions

Safety data sheet must be read and understood before use.

Description

PU012 is a low viscosity, liquid polyurethane wood adhesive.

Packaging

750 g bottle (12 per carton)

Cleaning

Remove excess adhesive immediately with AA290 PU Foam Cleaner. Ensure surface is solvent resistant before cleaning.Cured adhesive can only be removed mechanically.

Technical data

CharacteristicStandardClassification  
Density 1.14 g/cm³  
Viscosity Liquid  
Solids Content Approx. 100%  
Conformance EN204: D4  
Working Time Approx. 20 minutes  
Pressing Time 12 hours  
Pressing Pressure 10 - 30 kg/cm²  
Flash Point > +110°C  
Coverage 100 – 200 g/m² depending on the porosity of the substrate 
Service Temperature –30°C to +100°C  
Application Temperature +5°C to +30°C  
Storage Store in shaded, dry conditions between +5°C and +25°C. Protect from frost.
Shelf Life 12 months when stored as recommended in original unopened containers
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