As the core component of automotive crystal plating solution, silicone resin directly determines the protective performance and durability of the crystal plating layer.In the early days of traditional crystal plating technology, polysilazane was used as the main material, and a hard silicon oxide resin layer was formed by high temperature curing, but such materials had significant brittleness defects.


When the car paint encounters an extreme temperature difference environment, such as a sudden rainstorm to cool down after high temperature exposure in summer, or the alternation of day and night in a subzero environment in winter, the difference in the coefficient of thermal expansion and contraction between the coating and the car paint can cause stress concentration, causing the coating to crack or even fall off.Such technical defects were widely present in the crystal-plated products of early Japanese and German brands.


Modern crystal plating technology solves the above problems through material formula innovation.The new silicone resin system introduces epoxy resin polymer as a modifier, which significantly improves the flexibility while maintaining the hardness of the coating.




Specifically, the crosslinked network structure of epoxy resin can buffer stress shocks, so that the coating maintains structural integrity in a wide temperature range of -30℃ to 120℃.For example, the salt-added dual-core crystal plating technology that has been tested and verified combines high-purity silica with functional polymers through chemical bonding to form a protective layer that combines six types of international standard hardness and toughness, and can withstand high temperatures of 300℃ without thermal degradation.


At the level of construction technology, the particle size control of silicone resin by modern crystal plating solution has reached nanoscale accuracy.When evenly applied with a sponge or soft cloth, silicone resin particles with a diameter of 50-100 nm can fully fill the 1-3 micron pores on the surface of the car paint, forming a dense molecular-level binding interface.


This micro-level anchoring effect, combined with the Van der Waals force generated during the curing process of the coating, increases the bond strength to more than 3 times that of the traditional process.The measured data show that high-quality crystal-plated products can maintain an effective protection period of 18-24 months under normal use conditions, which is more than 50% longer than earlier products.


It is worth noting that there are differences in adaptability of different paint types to the silicone resin system.The special diffuse reflection structure on the surface of the matte paint requires that the crystal plating solution must be formulated with a low refractive index silicone resin, otherwise it may destroy its unique visual texture.The presence of large particles of aluminum powder in metallic paint requires adjusting the crosslinking density of the silicone resin to avoid stress lines when the coating is cured.


The optimization of these technical details marks that the automotive crystal plating technology has evolved from a simple hardness improvement to a system engineering that takes into account optical and mechanical properties.