1. Viscosity: Affects fluidity, permeability, spraying performance, glue temperature, wire drawing, glue output, etc.
2. Softening point: Affects the glue temperature, heat resistance, curing speed, etc.
3. Development time: Affects operational applicability, permeability and bonding strength.
4. Curing speed: affect the production speed and bonding strength.
5. Affinity: affect the bond strength.
6. Cohesion: affect the transfer resistance, peel strength or shear chord.
7. Thermal adhesion: affect the bonding effect.
8. Temperature resistance, etc.: affect the temperature that the final bonding system can withstand.
9. Equipment and technology and other foundations will affect the effect of hot melt adhesive