Glass beads are known for their low specific surface area and minimal oil absorption, which significantly reduces the need for other ingredients in coating formulations. Their smooth, vitreous surface offers excellent resistance to chemical corrosion and reflects light effectively. As a result, coatings containing glass beads provide enhanced properties such as anti-fouling, anti-corrosion, UV resistance, anti-yellowing, and scratch resistance. Hollow glass microspheres, due to their unique structure, contain a thin layer of gas inside, leading to low thermal conductivity. This makes them highly effective for thermal insulation in coatings. Additionally, these hollow particles improve the flow and leveling characteristics of the coating. The internal gas within the microspheres helps reduce thermal expansion and contraction, increasing the elasticity of the coating and minimizing cracking or peeling caused by temperature changes. Even when used in high quantities, the viscosity of the coating doesn’t increase significantly, allowing for a reduction in solvent usage. This leads to lower emissions of harmful gases during application and helps meet stricter environmental standards, particularly regarding VOC levels. Recommendations: The typical addition range is between 8% to 20% of the total weight. It is recommended to add the hollow glass beads at the final stage of the mixing process. Use a low-speed, low-shear mixer to ensure proper dispersion. Due to their spherical shape and lack of friction between particles, they disperse easily and can be fully mixed quickly. Slightly extending the stirring time will help achieve a more uniform distribution. These glass beads are chemically inert and non-toxic, but their extremely low density means care must be taken during handling. To prevent them from becoming airborne, it’s best to use a step-by-step addition method—adding half of the required amount at a time and gradually incorporating the rest. This ensures better dispersion and minimizes waste. Small Water Pump,Food Grade Water Pump,Miniature Water Pump,Micro Water Pump,Self Priming Micro Water Pump Shenzhen DYX Technology Co.,Limited , https://www.dyxpump.com
Application of hollow glass microbeads in the thermal insulation coating industry
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