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Product Overview
Industrial Talc Powder, Chemical Name: Hydrous Magnesium Silicate.CAS Number: 14807-96-6 and molecular formula 3MgO·4SiO₂·H₂O, is a high-performance natural functional filler processed from high-purity talc ore through crushing, ultra-fine grinding, classification and strict quality screening.
Our talc powder is asbestos-free, with low heavy metal content and controllable particle size distribution. Different from ordinary non-mineral fillers, its special sheet crystal structure can bring unique physical modification effects to downstream products, making it a preferred functional raw material in plastic, coating, rubber, papermaking and many other industrial fields.
Technical Specifications
Test Item | Unit | Standard Requirement |
Appearance |
| Pure White / Off-white Odorless Powder |
SiO₂ Content | % | ≥ 58.0 |
MgO Content | % | ≥ 30.0 |
Whiteness | % | ≥ 90.0 |
Moisture Content | % | ≤ 0.5 |
pH Value (5% Suspension) | - | 8.0 – 9.5 |
Oil Absorption Value | g/100g | 20 – 50 |
loss on ignition (LOI) | % | ≤ 6.5 |
Asbestos Content | - | Not Detected |
Fe₂O₃ Content | % | ≤ 0.5 |
D97 Particle Size（Mesh） | μm | 325-5000 |
Bulk Density | g/cm³ | 0.4 – 0.6 |
Melting Point | ℃ | ≥ 800 |
Heavy Metal (Pb) | mg/kg | ≤ 10 |
Product Advantages
Unique Sheet Reinforcement: The layered crystal structure significantly improves the rigidity, flexural strength and dimensional stability of plastic products, effectively reducing product warpage
Excellent Lubricating Property: Greatly optimizes the extrusion processing performance of PVC and modified plastics, reduces equipment torque, and effectively reduces die buildup
High Temperature Resistance: Melting point up to 1000℃, stable performance in high-temperature processing environment, no decomposition or volatile substances
Strong Chemical Stability: Insoluble in water and most chemical reagents, inert performance will not interfere with the curing reaction of adhesive and coating systems
Outstanding Insulation Performance: Low iron content ensures excellent electrical insulation, suitable for wire and cable, electrical shell and other high insulation requirements scenarios
High Cost Performance: As a natural mineral filler with stable performance, it can significantly reduce the comprehensive formulation cost while bringing unique modification effects that ordinary calcium carbonate cannot achieve
Application Scenarios
PVC & Modified Plastics: Widely used in PVC profiles, pipes, PP/PE modified materials, automotive plastic parts, household appliance shells, to improve product rigidity and heat resistance
Coating & Paint Industry: Used in interior and exterior wall coatings, industrial anti-corrosion coatings, waterproof coatings, to enhance coating scratch resistance, weather resistance and suspension performance
Paper Making Industry: Applied in high-grade cultural paper, packaging paper and coating base paper, to improve paper opacity, smoothness and ink absorption performance
Rubber & Elastomer: Serves as functional filler in rubber products, sealing strips and TPE materials, improving rubber processability and tensile strength
Other Industrial Fields: Suitable for ceramic raw materials, cable insulation layers, refractory materials, agricultural chemical carriers and other general industrial scenarios
Packaging.storate and shelf life
Package: 25kg/bags.20ft FCL loading capacity: 22-24 MT
Storage :Store in a dry, cool and ventilated indoor warehouse, strictly avoid moisture and rain, to prevent powder agglomeration from affecting dispersion performance
Shelf life :36months
1.High whiteness, low impurity content
2.Good oil absorption, stable particle size
3.Excellent acid and alkali resistance
4.Good lipophilic and hydrophobic performance