Application of white corundum in gel coat resin
White corundum is made of high-quality aluminum oxide powder, refined and crystallized by electric melting. It has high purity, good self-sharpening, acid and alkali corrosion resistance, high temperature resistance, and stable thermal performance. Its hardness is slightly higher than that of brown corundum, and its toughness is slightly lower. It has high purity, good self-sharpening, strong grinding ability, low heat generation, high efficiency, acid and alkali corrosion resistance, and good high temperature thermal stability.
White corundum is directly added to gel coat resin to improve the wear resistance of the coating by using its high hardness and wear resistance. For example, in the production of resin gel coat for washing cabinet countertops, the addition of white corundum sand can significantly extend the service life of the product in a high-frequency friction environment. At the same time, the uniform distribution of its particles can also optimize the flatness and glossiness of the gel coat surface.
The application of white corundum in gel coat resin is mainly reflected in the following aspects:
Enhanced wear resistance
White corundum is often added to the resin gel coat as a filler due to its high hardness and wear resistance, which significantly improves the wear resistance of the gel coat coating and is suitable for frequent friction scenes such as bathroom countertops and industrial equipment surfaces.
High temperature resistance and chemical corrosion resistance
Its chemical inertness and high temperature resistance enable the gel coat to maintain stability in high temperature or acid-base environments, extend its service life, and is suitable for fields that require corrosion resistance such as sanitary ware and chemical equipment.
Improved surface properties
Adhesion improvement: Fine particles can enhance the bonding strength between the gel coat and the substrate and reduce the risk of peeling.
Optimized surface finish: Uniform particle distribution helps to smooth the coating surface and improve the aesthetics.
Anti-slip and anti-aging
By adjusting the particle size of white corundum, the surface of the gel coat can form an appropriate roughness to enhance the anti-slip property; at the same time, its UV resistance can delay the aging of the coating .
Environmental protection and construction adaptability
As an inorganic material, white corundum has excellent environmental protection and can be well mixed with the resin base material, supporting spraying or mixed coating processes and simplifying the production process .
In summary, white corundum has become a key additive in gel coat resin to improve durability and functionality through multi-dimensional performance optimization.
The sizes of white corundum produced by Haixu Abrasives is as follows:
FEPA F12 F14 F16 F20 F22 F24 F30 F36 F46 F54 F60 F70 F80 F90 F100 F150 F180 F220 F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000
JIS #12 #14 #16 #20 #24 #30 #36 #46 #54 #60 #70 #80 #90 #100 #120 #150 #180 #220 #240 #280 #320 #360 #400# #500 #600 #700 #800 #1000 #1200 #1500 #2000 #2500 #3000 #4000 #6000 #8000 #10000