Talcum Powder

Technical parameters



Specifications /item LHX-222 LHX-666+ LHX-666 LHX-777 LHX-888 LHX-222B
Whiteness ≥ (%) 95±0.5 95±0.5 97±0.5 98±0.5 98±0.5 98±0.5
Fineness DV50um ≤12.00 ≤7.2 ≤7.0 ≤5.0 ≤4.0 ≤2.6
Porosity specific gravity g/ml 0.40 0.19 0.18 0.16 0.15 0.12
Oil absorption 30 40 45 55 60 65
PH value 89±1 89±1 89±1 89±1 89±1 89±1
Si02 ≥(%) 56.33 60.55 60.63 61.36 62.86 59.05
MgO ≥(%) 29.49 31.0 31.5 32.0 33.0 31.0
Moisture content ≤ (%) 0.30 0.30 0.35 0.35 0.35 0.30


This product is mainly applied in relevant industries, including industrial coating topcoats, plastic product manufacturing, hot-melt adhesives, sealants, underwater adhesives, various types of ceramics, paper-making, rubber, and inks. When used in industrial coating topcoats, as a filler, it acts as a framework, reducing manufacturing costs while increasing the hardness of the coating film. It can mainly enhance the shape stability, tensile strength, shear strength, flexural strength, and compressive strength of the product, and reduce deformation, elongation rate, and coefficient of thermal expansion. It also features uniform particle size and strong dispersibility. It has high dry powder brightness and good color in both water-based and oil- based systems. It can be easily wetted and dispersed in all liquid coatings. Only moderate stirring is needed during the dispersion process, and it has good compatibility with various pigments, latexes, and auxiliary additives.



When applied in plastic product manufacturing, adding this product can effectively improve the molding shrinkage rate, surface hardness, surface scratch resistance, and processing fluidity of plastic products, and increase their heat resistance temperature. As a reinforcing filler for hot- melt adhesives, sealants, and underwater adhesives, it mainly reduces costs, decreases the shrinkage of hot-melt adhesives during curing, changes the crystallization speed, prevents adhesive penetration, improves the heat resistance of hot-melt adhesives, and enhances the aging resistance, electrical properties, hardness, and other physical properties of sealants. When used in various industrial ceramics, such as radio ceramics, high-frequency ceramics, daily-use ceramics, building ceramics, and ceramic glazes, it can not only enhance the thermal stability of ceramic blanks and the whiteness of ceramics but also make the products more aesthetically pleasing.




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