The Role of White Corundum in Epoxy Floor Coating
Firstly, what is white corundum? What are its properties?
White corundum, also known as white fused alumina, white fused aluminum oxide or white emery, is made from high-quality aluminum oxide powder, refined and crystallized through electrofusion. It boasts high purity, excellent self-sharpening properties, acid and alkali corrosion resistance, high temperature resistance, and stable thermal performance. It has slightly higher hardness than brown corundum but slightly lower toughness. However, it has high purity, excellent self-sharpening properties, strong grinding ability, low heat generation, high efficiency, acid and alkali corrosion resistance, and excellent thermal stability.
Secondly, what is epoxy floor coating? What are its characteristics?
Epoxy floor coating is a high-strength, wear-resistant, and aesthetically pleasing floor coating widely used in industrial flooring and home decoration. Its key advantages include seamlessness, a solid texture, chemical resistance, water and dust resistance, easy maintenance, and low cost. A variety of coating options are available, including thin-coat flooring, self-leveling flooring, and anti-slip and wear-resistant coatings.
So, what properties of white corundum meet the requirements of epoxy floor coatings, and where do its performance advantages primarily manifest?
Enhancing the wear resistance of epoxy floors
White corundum has a Mohs hardness of 9.0, second only to diamond and silicon carbide (9.2-9.5). This significantly improves the wear resistance of floors and is particularly suitable for high-load environments such as logistics warehouses and automotive workshops.
Optimizing the anti-slip properties of floors
The surface roughness is increased through particle shape and distribution. Coarse particles (60#-120#) are suitable for ramps and humid environments, while finer particles (150#, 180#, 220#, 240#, 280#, 320#, 400#, etc.) meet the requirements of cleanrooms.
Improving the chemical and weather resistance of floors
It is resistant to acids, alkalis, salts, and extreme temperatures, making it suitable for corrosive environments such as chemical plants and pharmaceutical workshops.
Improved Flooring Aesthetics and Adhesion
Pure white or light gray does not affect color matching, allowing for customization to the user’s preferred color. The fine particles bond tightly to the resin, reducing the risk of peeling.
Flooring Application Flexibility
Can be applied by sprinkling or mixing, with adjustable particle size to meet varying performance requirements.
Expanded Flooring Functionality
High hiding power reduces paint usage while improving gloss and UV resistance.