Scouring powder

High-quality scouring powders typically contain a balance of abrasives, surfactants, and bleaching agents. You should look for calcium carbonate or silica as the primary abrasive for general cleaning, while sodium carbonate (soda ash) acts as a powerful grease cutter. For heavy-duty industrial use, ensure the formula includes sodium hypochlorite or oxygen-based bleach for disinfection and stain removal. Always verify that the particle size is uniform to prevent scratching delicate surfaces like porcelain or stainless steel.

As a chemical product, scouring powder must adhere to strict safety regulations. You must ensure the supplier provides a Material Safety Data Sheet (MSDS) compliant with the GHS (Globally Harmonized System). For the US market, compliance with EPA regulations and TSCA (Toxic Substances Control Act) is necessary. For the EU, products must meet REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) standards and the Detergents Regulation (EC) No 648/2004 regarding biodegradability of surfactants.

Buyers should conduct a pH level test; a slightly alkaline range (pH 9-11) is ideal for cutting grease without being overly corrosive. Perform a scratch test on a sample tile or stainless steel plate to ensure the abrasive hardness does not damage the substrate. Additionally, evaluate the solubility and rinse-ability—a superior product should leave zero chalky residue after a single rinse. Requesting a Certificate of Analysis (COA) for each batch is recommended to ensure consistency in active ingredient concentration.

To prevent moisture absorption and caking during sea freight, scouring powder should be housed in moisture-proof HDPE bottles or multi-layer laminated pouches. For bulk shipments, ensure the outer cartons are double-walled corrugated fiberboard with a high bursting strength. It is critical that the packaging includes tamper-evident seals and clear bilingual labeling (English and the destination language) detailing usage instructions, hazard warnings, and first-aid measures.

Scouring powder containing bleach may be classified as Class 8 (Corrosive) or Class 5.1 (Oxidizer) depending on the concentration. You must work with a freight forwarder experienced in Dangerous Goods (DG) handling. Ensure the supplier provides a Safe Transport of Chemical Goods certificate. Using Made-in-China.com’s audited supplier reports can help you identify manufacturers who have passed environmental impact assessments and possess the necessary export licenses for chemical products.

Pricing for scouring powder is heavily influenced by the cost of raw materials like soda ash and surfactants. Negotiate a formula-based pricing model if you are placing long-term contracts. For MOQs, many factories require 5 to 10 tons for custom branding (OEM). To reduce costs, consider ordering in bulk 25kg sacks and repacking locally, or leverage volume discounts which typically trigger at full container load (FCL) levels, potentially reducing unit costs by 15-20%.

Never release full payment upfront. Utilize Escrow services or Letters of Credit (L/C) for large volumes. Before the final payment, hire a third-party inspection agency (like SGS or Intertek) to perform a Pre-Shipment Inspection (PSI). The inspector should verify the net weight per unit, the active chlorine content (if applicable), and ensure the production date and shelf life (typically 2-3 years) are clearly printed on the packaging.

Check the HS Code (typically 3402.20 or 3402.50) for scouring powder in your country's tariff schedule. Be aware of anti-dumping duties that some regions impose on chemical products from specific origins. Always confirm if your country has a Free Trade Agreement (FTA) with China to benefit from Reduced or Zero-Tariff rates by requesting a Form E or CO (Certificate of Origin) from your supplier.