Titanium dioxide sr 237 manufacturers

SR-237 is a rutile titanium dioxide pigment produced by the sulfate process, specifically designed for high-performance coatings and plastics. Key specifications include a TiO2 content of ≥93%, excellent inorganic surface treatment (Alumina and Zirconia), and an organic treatment to enhance dispersibility. It is characterized by its high gloss, superior tinting strength, and excellent weather resistance, making it ideal for both indoor and outdoor applications.

Due to its versatile properties, SR-237 is widely used in architectural coatings (interior and exterior), industrial finishes, and powder coatings. It is also highly effective in the plastics industry, particularly for masterbatches, PVC pipes, and engineering plastics, where high opacity and UV protection are required. Its low oil absorption ensures optimal flow and processing efficiency in high-concentration systems.

Buyers must ensure the product complies with ISO 591-1:2000 (Type R2) standards. For international trade, verify that the supplier provides REACH registration (for EU markets), RoHS and REACH SVHC declarations for chemical safety, and ISO 9001:2015 for manufacturing quality management. If used in food-contact packaging, ensure it meets FDA 21 CFR 178.3297 or equivalent local food safety regulations.

To optimize costs, buyers should analyze the Total Cost of Ownership (TCO), including the unit price, shipping, and pigment efficiency. SR-237’s high scattering power often allows for a reduction in pigment loading while maintaining opacity, which can lower overall formulation costs. We recommend sourcing from Verified Suppliers on Made-in-China.com who offer tiered pricing for 20ft FCL (Full Container Load) orders, which typically reduces costs by 10-15% compared to LCL shipments.

The main risks include quality inconsistency between batches and moisture contamination during transit. To mitigate these, always request a Pre-Shipment Inspection (PSI) and a Certificate of Analysis (COA) for each specific batch. Ensure the packaging uses multi-layer moisture-proof paper bags or jumbo bags with PE liners to prevent clumping during sea freight.

Utilize secure payment methods such as Letters of Credit (L/C) for large volumes or Escrow services provided by reputable platforms like Made-in-China.com. Avoid direct wire transfers to unknown accounts. Always verify the supplier's Business License and Export Permit for Chemicals to ensure they are a legitimate manufacturer or authorized distributor.

Titanium Dioxide is generally classified as non-hazardous for transport, but it requires a Material Safety Data Sheet (MSDS) and a Non-DG (Dangerous Goods) Declaration for customs clearance. For shipping to international destinations, FOB (Free On Board) is recommended for buyers with their own freight forwarders to control costs, while CIF (Cost, Insurance, and Freight) is better for those seeking a simplified logistics process.

Focus on long-term partnership stability rather than just the lowest price. Negotiate based on annual volume commitments to secure 'contract pricing' which protects against market volatility. Ask for free samples (1-2kg) to conduct lab testing before placing a bulk order, and clarify the lead time (usually 7-14 days) to ensure it aligns with your production schedule.