Pe wax

When evaluating PE Wax, you must prioritize Melting Point, Viscosity, and Density. For PVC processing, a melting point between 100°C and 110°C is standard. Viscosity (measured in cps at 140°C) determines the lubrication efficiency; low viscosity provides better external lubrication, while high viscosity improves dispersion. Additionally, check the Hardness (Penetration value) to ensure it meets the requirements for scratch resistance in coatings or inks.

PE Wax is generally categorized into Oligomer (By-product) Wax, Cracked Wax, and Polymerized Wax. Polymerized PE Wax (produced via Ziegler-Natta or Metallocene catalysts) offers the highest purity, narrow molecular weight distribution, and best thermal stability. Cracked Wax is cost-effective but may contain impurities, while Oligomer Wax is the most economical but has lower consistency. For high-end masterbatches, Polymerized Wax is highly recommended.

For food-contact applications (like food packaging), the product must comply with FDA 21 CFR 175.300 or EU 10/2011 regulations. For general industrial use, ensure the supplier provides a REACH Certificate (for EU markets) and a comprehensive Material Safety Data Sheet (MSDS). If the wax is used in toys or sensitive consumer goods, it must pass RoHS and EN71-3 heavy metal testing.

PE Wax is a versatile additive used as an External Lubricant in PVC pipe and profile extrusion to prevent sticking to metal molds. In the Masterbatch industry, it acts as a Dispersant for pigments. It is also used in Hot Melt Adhesives to adjust viscosity and setting time, and in Road Marking Paints to improve heat resistance and surface hardness.

The biggest risk is Product Adulteration, where suppliers mix PE Wax with cheaper paraffin or recycled materials, leading to a lower flash point and potential fire hazards during processing. Always request a Pre-shipment Inspection (PSI) and verify the Ash Content (should be <0.05% for high quality) to ensure purity.

Focus on Volume-Based Pricing and Annual Contracts. Since PE Wax is a petroleum derivative, prices fluctuate with crude oil. Negotiate a Price Adjustment Formula based on market indices. For new suppliers, start with a Trial Order (1-5 tons) before committing to full container loads (FCL) to verify batch-to-batch consistency.

PE Wax is usually shipped in 25kg PP woven bags or Kraft paper bags. Ensure the container is moisture-proof and kept away from direct sunlight, as high temperatures during transit can cause caking (clumping). For sea freight, specify 'Keep away from heat sources' on the Bill of Lading. Use Palletized Packaging with shrink wrap to prevent bag breakage during mechanical handling.

Utilize Secured Payment Services provided by Made-in-China.com to ensure funds are only released upon proof of shipment. Always verify the supplier's Business License and Export Permits for chemical substances. Requesting a Factory Audit or a video inspection of the production line can significantly reduce the risk of dealing with non-manufacturing trading companies.