Spray lubricant & penetrating oil

Buyers should prioritize viscosity index, flash point, and dielectric strength. For penetrating oils, the surface tension and capillary action speed are critical for loosening rusted bolts. Ensure the product uses a non-flammable propellant (like CO2) if intended for use in high-heat environments, and verify that the 4-ball wear test results meet your specific load-bearing requirements.

Products must be accompanied by a Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) compliant with GHS (Globally Harmonized System). For food-grade applications, look for NSF H1 or H2 registration. If exporting to the EU, REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) compliance is mandatory, while VOC (Volatile Organic Compounds) limits must be checked for the US market.

Request the results of a Salt Spray Test (ASTM B117). A high-quality penetrating oil should withstand at least 48 to 72 hours of continuous salt spray without showing signs of oxidation. Additionally, ask for water displacement efficiency data to ensure the lubricant can effectively protect metal surfaces in humid or outdoor conditions.

Look for suppliers offering 360-degree valves that allow spraying at any angle, including upside down. Dual-action nozzles (integrated straw vs. wide spray) are highly valued in automotive and MRO (Maintenance, Repair, and Operations) sectors as they prevent the loss of the extension tube and allow for precision application.

Aerosols are classified as Class 2 Dangerous Goods (UN1950). The main risk is seizure or rejection by customs if the packaging does not meet UN-certified pressure standards. You must ensure the supplier provides a Dangerous Goods Declaration and uses specialized DG packaging to prevent leakage or explosion during sea freight temperature fluctuations.

For private label (OEM) orders, MOQs typically range from 5,000 to 10,000 cans due to lithographic printing requirements for the tinplate. Negotiate based on active ingredient concentration; some low-cost suppliers dilute the oil with excess solvent. Aim for a tiered pricing structure where a 20% increase in volume yields a 5-8% reduction in unit cost.

Always use Trade Terms like FOB or CIF and conduct transactions through secure channels. On Made-in-China.com, utilize the Secured Trading Service to ensure payment is only released after the third-party pre-shipment inspection confirms the chemical composition and quantity match the Proforma Invoice.

Request accelerated aging test reports from the supplier to ensure the emulsion does not separate during the 30-45 days of sea transit. Ensure the outer cartons are double-walled corrugated fiberboard with internal dividers to prevent the cans from denting, which can lead to propellant leakage.