VN110 Cross-Linked PVA Glue: Adhesive properties and instructions for use

Technical specifications

Solid content (3 h @ 120°C): 50%

Viscosity at 20°C: 110 Poise

pH: 3.0

Storage life at 10-25°C: 6 months (protect from freezing)

Diluent: water

Information for use

Timber moisture content: timber moisture content can be between 5-15% but, as with all PVA adhesives, the lower the moisture content, the faster the glue will set.

Glue spread: 100-125 g/m² (2-2.5 lb/100 ft²) single glue line. The correct spread is indicated by a slight squeeze-out at the flue line edge.

Closed assembly time: maximum 25 minutes. Assembly times should be minimised at low moisture content, high air temperatures and low spread rates.
All PVA adhesives set by loss of water from the glue line. The rate at which moisture is lost and hence the rate at which it sets is determined by the wood moisture content, the spread rate, and ambient conditions of humidity and temperature. As a guide, a strong, handleable bond should have formed within 30 minutes at room temperature (20°C).

Pressure: 350-1200 kN/m² (3.5-12.0 kgf/cm², 50-175 lbf/in²) on the joint. This assists in achieving good contact between the surfaces and thin glue lines, which give the fastest setting time.

Seasoning: at least two weeks should elapse for full water resistance to develop. Bonded joints should be stored at a temperature of at least 15°C.
Radio frequency heating: this grade is ideal for use with RF equipment.

Clean down

Warm water, with a little detergent added is recommended. Care should be taken to avoid drying out on equipment as the water resistance makes cleaning difficult.

Safety

Please read the relevant Material Safety Data Sheet carefully.

Note: the above figures are typical of this product and should not be taken as an agreed specification.