High temperature adhesive UNIBORD 663

Packaging

We only offer the whole package of 25 kg

Solid hot-melt adhesive with EVA base for automatic edge-banding machines. Product with an excellent versatility it is characterized by high melting speed, good open time and viscosity.

APPLICATIONS

It is used for gluing edges made of polyester, melamine-base materials, plastic laminate, PVC and ABS with primer.

CHARACTERISTICS

FORM – granular

COLOUR  natural – walnut

MELT INDEX AT 190°C: 135 – 160  g/10min

SOFTENING TEMPERATURE (Ring and Ball): 110 – 118°C

FOR BEST RESULTS

TEMPERATURE IN TANK: 180 – 190°C

TEMPERATURE ON ROLLER: 200 – 220°C

HUMIDITY OF MATERIAL TO BE BONDED: 8 – 10  %

IDEAL OPERATING SPEED:  10 – 50  m/min

PRESSURE ON FILLETS: 3 – 5  kg/cm²

USAGE ADVICE

Frequently check the temperature of the glue on the rollers. Temperatures below the recommended value for application cause a decrease in open time with consequent defective gluing results; at higher temperatures the adhesive may decompose with the detriment of colour, viscosity and adhesiveness. When gluing cold or damp surfaces, gluing defects may occur due to the reduction in open time.

In case of break of work, it is suggested to reduce of 30°C – 40°C the temperature in tray to avoid a degradation of the performance of the product.

Occasionally, unsatisfactory gluing results may be due to the type of edge or to the presence of release agents on the materials/panels; a preliminary test is therefore recommended. Should such problem occur, it is advisable to use a suitable preparatory product.

STORAGE

Shelf life: 24 months at 20°C in original closed packages.

To store the product at temperature higher than 30°C may cause problems of condensation.