Brush Coating Method

Use a brush to apply the adhesive onto the bonding surface along one direction. Its advantages include convenient use, no need for special equipment, and the ability to be applied to the bonding of various complex parts. The disadvantage is that the coating thickness is uneven, and the production efficiency is low.

Knife Scraping Method

Pour the adhesive liquid onto the bonding surface, and pass the plate under the blade. The blade and the tool bar can be adjusted to control the thickness of the adhesive layer on the plate. The distance between the blade edge and the surface of the bonded part is the thickness of the adhesive layer. Sometimes, the blade edge can also be processed into shapes such as serrated or square. Its advantages are that the method is simple and the effect is relatively good. The disadvantage is that the coating thickness is uneven, and the quality is not stable enough.

Roller Coating Method

Use a glue roller to evenly apply the adhesive onto the bonding surface. Its advantages are high work efficiency, uniform adhesive layer, and easy operation automation.

Spraying Method

Use various spraying equipment to spray the adhesive onto the bonding surface. Its advantages are fast adhesive application speed and easy automation. The disadvantage is that the sprayed adhesive mist is harmful to the health of the operators.

Hot Melt Method

Put the hot melt adhesive into the gun body for heating and melting, then extrude it from the gun head onto the bonded surface, and then quickly lap it up.