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Chassis anti stone strike coating
Time:2014-07-26 Click:

The car runs at high speed, fast rolling wheel easy to sand rock. Sediment, so that the body has a strong impact on. These sand surface if contaminated with chemicals, antifreeze in winter as well as for road surface ice melting salt cars as well, to cause more serious damage. Obviously this gravel impact on automobile front cover and the chassis with greater harmfulness, and be the first to bear the brunt is automobile chassis.

Gravel impact in the failure of the coating at the same time, it also brings the hidden trouble in the corrosion damaged parts. The auto maker as much as possible to reduce the occurrence of such phenomena in order to take the body sealing and chassis protective measures, Western carmakers think mostly, sealant and chassis stone guard coating not only play the sealing box chassis anti stone strike role, more important is to weld and cut the body parts of corrosion inhibition.

The early automobile industry use of anti stone strike coatings are not strictly equal to coating category, should be put into the field of adhesive. When used in the automotive industry is adhesive, sealant variety is very little, only body with seal weld two-component polysulfide sealant underbody, decorative plate with asphalt base anticorrosive paint, interior with solvent type chloroprene rubber, inner door of solvent type high-frequency heat sealing glue etc.. The adhesive used on vehicle body, the stone guard coating is one of the largest amount, they accounted for almost half of the amount of glue used around the car to.

In order to adapt to the general trend of reducing vehicle weight, in addition to reducing the stone guard coating thickness, greatly reduce the PVC anti stone strike coating density becomes an important goal for the key technical staff. Sealant and chassis stone anti same species mostly uses the hammer paint early, i.e. PVC sealant and PVC plastisol. Later developed into a linear polyester melamine, epoxy polyester - closed isocyanic acid