This type of sealing adhesive replaces electric welding or reduces solder joints in the welding process, and mainly plays the role of reinforcing structure, sealing rust prevention, vibration and noise reduction. Generally required to have good adhesion to oil-surface steel. Since there is no special heating and curing equipment in each station, it needs to be cured under the paint process of the body. Therefore, the general requirements can neither be affected by the cleaning liquid or the phosphating solution, nor affect the quality of the electrophoretic paint. The main products on the market are:

Folding edge glue

It is usually used in the crimping structure such as the door, engine cover and trunk lid. Its high bonding strength has completely replaced the spot welded structure. This type of glue is generally used in one-component epoxy resin, and the conventional bicycle dosage is about 200g.

Spot welding sealant

It is pre-coated on the lap joint of the steel plate welding, and the gap is filled after spot welding to seal and prevent rust. Spot weld sealants are indispensable for those parts that are covered after assembly and are difficult to apply weld sealant.

Expansion damping rubber

Such glue is often used between the inner and outer panels of the door, between the outer cover of the vehicle and the ribs. It is generally made of synthetic rubber or resin with foaming agent. After curing and expansion, it can combine the covering parts with the reinforcing ribs to play the role of vibration and noise reduction. The conventional bicycle rubber dosage is about 400g.