Liquid paraffin

Selecting the right grade depends entirely on the end-use. Pharma/Cosmetic Grade (USP/BP/EP) must be used for skin care and medicines, ensuring it is colorless, odorless, and tasteless with zero polycyclic aromatic hydrocarbons. Food Grade is required for machinery lubrication in food processing to meet FDA 21 CFR standards. Technical Grade is suitable for plasticizers, rubber, and textile lubricants where high purity is less critical but viscosity stability is key.

Buyers must prioritize Kinematic Viscosity (typically measured at 40°C), as it affects the flow and lubrication properties. Check the Flash Point (should be >180°C for safety) and Pour Point to ensure stability in cold climates. For high-end applications, verify the Specific Gravity (usually 0.820–0.880) and ensure the Saybolt Color is +30 (water white).

For medical and cosmetic use, ensure the supplier provides COA (Certificate of Analysis) and MSDS (Material Safety Data Sheet). Compliance with REACH (EU), USP/NF (USA), or BP (UK) is essential. If sourcing from Made-in-China.com, look for SGS or Intertek audited suppliers to guarantee that the chemical composition matches the declared standards.

Liquid Paraffin is chemically inert, but its quality can degrade if exposed to light or heat. Ensure the product has high Oxidation Stability. Ask the supplier for UV Absorbance test results to confirm the absence of impurities. A standard shelf life should be 2 to 3 years when stored in a cool, dry place in original sealed drums.

The biggest risk is product contamination or grade substitution. Always request a pre-shipment inspection (PSI). Use secure payment methods like Escrow or Letter of Credit (L/C) to ensure funds are only released upon verification of shipping documents. On Made-in-China.com, prioritize Diamond Members who have undergone extensive third-party on-site audits.

Liquid Paraffin is generally classified as non-hazardous for transport, but it must be packed securely to prevent leaks. Common options include 200L Steel Drums, IBC Tanks (1000L), or Flexitanks for bulk shipments. Ensure the containers are new and internally coated to prevent rust contamination during long sea voyages.

Focus on Volume-Based Pricing; discounts of 5-10% are common for full container loads (FCL). Negotiate for free samples (buyer pays freight) to conduct lab testing before committing. Discuss Lead Times clearly, as chemical production cycles and port congestion can affect delivery; aim for a 15-20 day production window.

Verify the HS Code (typically 271019) to determine import duties in your country. Ensure the supplier provides a GHS-compliant label in the destination country's language. Be aware of Anti-dumping duties that may apply to specific chemical origins, and always confirm the Country of Origin (COO) certificate is included in the shipping set.