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Polyurethane Glue And Plywood Glue | JCT Machinery

June 17, 2024

pu glue

Polyurethane (PU) Glue

1. Elasticity and flexibility
It has high elasticity and flexibility, and can adapt to the displacement and deformation of the substrate.
2. Weather Resistance
Excellent weather resistance, able to resist the influence of environmental factors such as ultraviolet rays, rain and weathering.
3. Waterproofness
Good waterproof performance, often used in occasions requiring waterproof sealing.
4. Chemical Resistance
It has good resistance to a variety of chemical substances.

Plywood Glue

1. High Srength
It has high bonding strength to ensure a strongn bond between plywood layers.
2. Moisture Resistance
Plywood glue for indoor applications requires a certain degree of moisture resistance, and outdoor applications require even higher resistance.
3. Curing Speed
The curing speed is moderate, which is convenient for production operations.
4. Environmental Protection
Modern plywood glue emphasizes low VOC (volatile organic compound) emissions, which meets environmental protection requirements.

plywood adhesive

vacuum planetary mixer                
reactor                
Reactor

For plywood glue making


Main Differences In Production Equipment
  • 1. Viscosity Processing

  • Polyurethane sealant usually has a high viscosity, so vacuum planetary mixer and vacuum degassing equipment are required. Plywood glue has a relatively low viscosity and usually used a reactor.

  • 2. Vacuum Degassing

  • Polyurethane glue requires vacuum degassing during production to remove bubbles and ensure the purity and performance of the colloid. Plywood glue generally does not require this process.

  • 3. Temperature Control

  • The productionprecess of polyurethane glue requires high temperature control, and usually requires a heating and cooling system. The temperature control of plywood glue is relatively simple.

  • 4. Reaction Characteristics

  • The production of polyurethane glue involves complex chemical reactions, which require the use of special reactors and precise reaction condition control. The production of plywood glue is relatively simple, mainly mixing and emulsification.


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