What glue does the car attach to the plastic without damaging the paintwork?
Structural adhesive, the so-called structural adhesive for automobiles, means that the bonding strength is higher and can bear the adhesive force as a structural member. For ordinary steel plates, the shear strength can be 20MPa, and the peel strength is above 1.0MPa. This glue is usually modified epoxy resin, such as FAW has used CJ adhesive type 1 structural adhesive in the engine cover and the beam before and after strengthening by stick, reduce generation of welding, solder joint, solder joint surface pit cover problem solving, improve the appearance quality of the automobile.
Stone impact of automobile coatings in the fast road, car floor, wheel cover, skirt will be brought up to the sand wheel impact, causing spalling of the coating, steel corrosion resist the impact and shock, the body will be at the bottom of coating a layer of glue. Shock damping coating. Now as the automobile anti stone strike and insulation materials to stop damping coating.
Spot welding automobile body is usually welded by steel plate, so the seam is unavoidable. Application of welding adhesive to ensure the sealing quality, which is characterized by myself alone set before curing conductivity, good adhesion, no pollution of phosphating solution and electrophoresis liquid, containing no silicone material.
The expansion vibration damping glue is applied to the strengthening beam or the inner plate before welding the body, and then the combined welding is carried out. The shock absorber does not have to be individually heated and cured, usually by using an electrophoretic primer oven to heat it. Not only increased the rigidity of the top cover, but also played a role in damping. For example, FAW CA6440 car doors, inner and outer panels and side sides are all equipped with CB 1 shock absorption film to solve the noise problem.
The hem hem adhesive structure is the inner and outer plate by bonding and folding way together, this kind of structure, without spot welding, spot welding to eliminate the pits, keep the body smooth and beautiful, but also improves the corrosion and rust resistance. Most of the folding glue needs to be heated and cured, and the adhesive strength is higher.
