Fumed silica 200 price

When sourcing Fumed Silica 200, the most critical parameter is the Specific Surface Area (BET), which must be 200 ± 25 m²/g. You should also verify the pH value (3.7 - 4.7 in 4% dispersion), Loss on Drying (≤ 1.5%), and SiO2 content (≥ 99.8%). These specifications directly impact the product's performance in thickening, reinforcement, and thixotropy.

For Silicone Rubber, focus on reinforcement properties and transparency. In Coatings and Inks, prioritize anti-settling and sag resistance capabilities. If you are sourcing for Adhesives or Sealants, ensure the material provides stable thixotropic control. Always request a Technical Data Sheet (TDS) tailored to your specific industry to ensure the grade matches your viscosity requirements.

Suppliers should ideally hold ISO 9001 for quality management. For exports to Europe, REACH registration is essential. If the silica is used in food-contact materials or pharmaceuticals, verify compliance with FDA (Food and Drug Administration) regulations or USP/EP standards. Ensure the supplier provides a comprehensive Material Safety Data Sheet (MSDS/SDS) for safe handling and customs clearance.

To optimize costs, consider the packaging density; fumed silica is extremely light, so vacuum-packed bags can significantly reduce shipping volumes and costs. Compare FOB vs. CIF prices on Made-in-China.com to determine if your freight forwarder can offer better rates. Additionally, purchasing in full container loads (FCL) typically reduces the unit price by 10-15% compared to LCL due to reduced handling and logistics overhead.

The biggest risk is moisture absorption, which degrades the product's effectiveness. Ensure the supplier uses multi-layer paper bags with a PE liner and utilizes pallets with shrink-wrap for sea freight. To mitigate transaction risks, use secured payment terms and consider third-party pre-shipment inspections to verify the batch number and production date.

Focus on long-term volume commitments rather than one-off purchases to secure 'Tier 1' pricing. Ask for sample consistency guarantees—ensure the bulk cargo matches the provided sample's viscosity-building power. On Made-in-China.com, prioritize Audited Suppliers who have undergone on-site verification of their production capacity and financial standing.

Fumed silica is a non-hazardous chemical, but its low bulk density makes it prone to 'dusting.' Ensure the carrier is aware of the fragile nature of the bags. For shipping to specific regions, verify if there are anti-dumping duties applicable to Chinese silica in your country. Always confirm the HS Code (typically 2811.22) with your customs broker to avoid tariff misclassification.