Natural Diatomaceous Earth CAS 61790-53-2 325 Mesh for Rubber and Plastic Filler
Natural Diatomaceous Earth CAS 61790-53-2 is 325 mesh refined uncalcined diatomite powder with complete honeycomb porous skeleton. When applied as filler for rubber and plastic, the special structure enhances interfacial bonding with polymer matrix. It upgrades abrasion resistance, thermal stability and anti-shrinkage property of finished goods. Meanwhile, it can partially replace expensive reinforcing agents, lowering raw material expense. It is widely used in thermoplastic plastics and all kin
Product Overview
Natural Diatomaceous Earth CAS 61790-53-2 325 Mesh Powder is functional inorganic filler developed for rubber and plastic manufacturing. Ordinary calcium carbonate only plays simple filling effect without property improvement. This diatomite retains natural microporous structure. It serves as reinforcing filler to optimize mechanical performance, reduce shrinkage and endow products with sound-absorbing properties, helping manufacturers improve product quality and control costs.
Key Features
- CAS Number: 61790-53-2, 325 Mesh, Uncalcined Natural Diatomaceous Earth
- Honeycomb porous structure, offering certain reinforcing effect for polymer materials
- Improve wear resistance, heat resistance and dimensional stability of rubber & plastic parts
- Reduce molding shrinkage, effectively prevent finished products from deformation and warpage
- Good compatibility with PVC, PP, PE, EPDM, NBR and other rubber & plastic resins
- Chemically inert, stable under common processing temperature range
- Uniform particle size, favorable dispersion during twin-screw extrusion and mixing
- Cost-effective functional filler to replace partial reinforcing silica and talc powder
Main Applications
- Reinforcing filler for PVC, PP, PE and other thermoplastic plastic products
- Functional additive for NBR, EPDM, SBR and other synthetic rubber compounds
- Raw material for sound insulation plastic sheets, rubber damping components
- Mineral filler for plastic profiles, rubber mats, plastic pipe and hardware accessories
Usage Guidance
Dry the diatomite adequately before feeding to avoid bubbles inside products. Add powder during high-speed mixing stage and fully homogenize with resin, auxiliary agents. Carry out small-scale extrusion or mixing test to confirm dispersion effect and mechanical indexes. Surface coupling agent treatment can be adopted to further promote compatibility with polymers. Wear dust mask during operation.
Storage & Package
Keep packages tightly sealed. Store in dry, ventilated warehouse, avoid moisture absorption. Standard package: 25kg woven bag with PE inner liner. Shelf life: 24 months under dry sealed storage.
Service Support
Rubber & plastic formulation test samples available. COA and technical datasheet can be provided on request. Stable bulk supply capacity. Welcome to inquire factory quotation.
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