1. Basic Product Information
Product Name: Talc Powder, Hydrous Magnesium Silicate Powder
Chemical Name: Hydrous Magnesium Silicate
Molecular Formula: Mg₃Si₄O₁₀(OH)₂
Molecular Weight: 379.27
CAS No.: 14807-96-6
HS Code: 2526.20
Payment Terms: T/T, L/C
Trade Terms: FOB, CFR, CIF
MOQ: 20GP ≈ 20-25MT
Appearance: Pure white fine flaky powder, dry and fluffy texture with silky hand feel. No caking, no black spot impurities, no coarse particles and no peculiar odor. It features high whiteness, uniform and transparent color, excellent fluidity, lubricity and dispersibility with low dust and high purity.
Product Introduction: Talc powder is a natural flaky inorganic mineral powder with the lowest hardness and most stable performance in nature. It is processed from high-quality natural talc ore through fine purification, water washing and impurity removal, ultra-fine grinding, grading screening and bacteria removal purification. The products are divided into Industrial Grade Talc Powder and Food Grade Talc Powder, strictly complying with the latest national standards GB/T 15342-2023, GB 2760 and GB 9685. Food grade is completely asbestos-free, heavy metal-free and free of harmful impurities, which is safe and compliant for food processing and maternal and infant daily chemical fields. With unique flaky structure, strong lubricity, high temperature resistance, heat insulation, acid and alkali resistance, anti-settling and toughening reinforcement advantages, it is an indispensable functional filler in coatings, rubber and plastics, papermaking, daily chemicals, food, medicine, ceramics, waterproof materials and other industries with strong universality and high cost performance.
2. Physical and Chemical Properties
This product is a white natural flaky mineral powder with extremely stable physical properties, non-toxic, odorless and environmentally friendly. The density is 2.7-2.8g/cm³ with a Mohs hardness of only 1.0. As the softest known industrial mineral, it has a silky and delicate texture without wearing equipment. It features strong chemical inertness at room temperature, resisting strong acid, strong alkali, high temperature and aging. It is almost insoluble in water, ethanol and various organic solvents and does not react with acid-base systems. It has excellent heat resistance and thermal insulation performance, no discoloration, decomposition or volatilization at high temperature with outstanding thermal stability. The unique flaky crystal structure endows it with super lubricity, suspension, permeability resistance and toughness, which can effectively improve the weather resistance, waterproof, scratch resistance and anti-settling properties of products. The powder has excellent wettability and good compatibility with resin, rubber, plastic, emulsion, grease and other substrates, dispersing evenly without agglomeration. It also has core characteristics of oil adsorption, fine filling, auxiliary demoulding and anti-caking.
3. Executive Standards & Technical Specifications
Executive Standard: GB/T 15342-2023 Talc Powder, GB 2760 Standards for the Use of Food Additives, GB 9685 Standards for the Use of Additives in Food Contact Materials and Products
Product Grade: General Industrial Grade, Refined Food Grade (Asbestos-Free)
4. Core Product Characteristics
1. Unique Flaky Structure with Excellent Reinforcement and Impermeability
The natural layered flaky crystal structure forms a dense overlapping protective layer after filling, which greatly improves the waterproof, anti-seepage, scratch-resistant, impact-resistant and crack-resistant properties of products. It effectively enhances the compactness of coating films and the toughness of rubber and plastic products.
2. Ultra-smooth Lubrication with Outstanding Demoulding and Anti-sticking Effect
With ultra-low mineral hardness and delicate silky texture, it has excellent lubrication, demoulding, anti-sticking and anti-caking properties. It can effectively improve material fluidity, prevent adhesion and caking of powder, particles and food, and adapt to various forming and processing technologies.
3. High Temperature and Weather Resistance with Strong Thermal Insulation Stability
It features excellent thermal stability without decomposition, discoloration or volatilization at high temperatures. It has good heat insulation, insulation and aging resistance, maintaining stable performance without pulverization or fading during long-term outdoor use, greatly extending the service life of products.
4. Strong Chemical Inertness with Acid and Alkali Corrosion Resistance
It does not react with acids, alkalis or solvents at normal and high temperatures, with strong chemical corrosion resistance and dry-wet cycle resistance. It has excellent system compatibility and adapts to various formula systems such as water-based, oil-based and high-temperature curing systems.
5. High Whiteness and Purity with Stable Batch Consistency
Selected high-purity raw ore undergoes multiple times of water washing, impurity removal and fine screening to strictly control asbestos, heavy metals and harmful impurities. The powder is pure white without variegation or black spots, with consistent whiteness, fineness and purity indicators in each batch.
6. Good Dispersibility Suitable for Automated Mass Production
The powder is dry and non-agglomerated with fast wetting speed, easy to stir and disperse without sedimentation or delamination. It adapts to assembly line continuous feeding and precision ratio production without material blockage or efficiency reduction.
7. Food Grade Safety and Compliance for Wider Application Scenarios
The refined food grade is asbestos-free, low in heavy metals, non-toxic, and harmless, fully complying with national food additive safety standards. It can be safely used in strict safety scenarios such as food demoulding, anti-sticking, pharmaceutical excipients, and high-end daily chemicals.
8. High Filling Capacity for Significant Cost Reduction
With large filling capacity and moderate oil absorption value, it can replace high-priced functional fillers. It effectively reduces formula production costs while improving product performance, meeting the cost reduction needs of large-scale industrial mass production.
5. Main Application Fields
Coating and Ink Industry (Main Application for Industrial Grade)
Widely used in interior and exterior wall latex paint, industrial anti-corrosion paint, wood paint, powder coating, water-based industrial paint and printing ink. It serves as an anti-settling agent, toughening filler, matting agent and weather resistance additive, which effectively prevents coating delamination and precipitation, improves film hardness, flatness, wear resistance, water resistance and aging resistance, optimizes coating leveling and brushing feel, and reduces raw material costs.
Plastic and Rubber Industry
Suitable for filling and modification of PP, PE, PVC, ABS, pipes, plates, profiles, wires and cables, rubber seals and silicone products. It significantly improves the rigidity, toughness, heat resistance, flame retardancy and dimensional stability of products, reduces shrinkage, deformation and warping cracking, enhances surface flatness and scratch resistance, and strengthens insulation and heat insulation performance.
Papermaking Industry
Used as special filler and coating pigment for cultural paper, coated paper, special paper, and waterproof paper production. It improves paper whiteness, smoothness, bulkiness, and printability, enhances paper moisture resistance, permeability resistance, and aging resistance, and optimizes the delicate texture of the paper surface.
Daily Chemical and Beauty Industry
Applied in talcum powder, loose powder, foundation, eye shadow, washing and care products, cream and lotion production. With silky texture, oil adsorption and mild non-irritating characteristics, it acts as a smoothing filler, oil absorption additive and skin feel regulator to improve the fineness and user experience of daily chemical products.
Food Processing Industry (Special for Food Grade)
The strictly compliant food grade talc powder can be used as food demoulding agent, anti-sticking agent, anti-caking agent and polishing additive for preserved fruits, candies, pastries, glutinous rice products and fermentation processes. It effectively prevents food adhesion and caking, improves forming effect, conforms to national standard food addition specifications, and is safe and residue-free.
Pharmaceutical Industry (Food Grade Adaptable)
Used as pharmaceutical excipients, tablet demoulding agent, coating auxiliary agent and traditional Chinese medicine powder filling material. It features pure and mild texture, non-irritation and strong stability, meeting the safety standard requirements of pharmaceutical preparation production.
Waterproof Material and Building Material Industry
Used for filling waterproof coatings, waterproof rolls, sealants, putty powder, dry mortar and ceramic glaze. It improves the waterproof, anti-seepage, weather-resistant, crack-resistant, wear-resistant and compression-resistant properties of building materials, enhances coating compactness and adhesion, and prevents aging, falling off, water seepage and cracking of building materials.
Ceramic and Fine Chemical Industry
Used for ceramic body and glaze filling to improve the gloss, density, flatness and toughness of ceramic finished products. It is also used as chemical auxiliary agent, isolating agent and lubricant for fine chemical synthesis and auxiliary preparation scenarios.