How does oxidized polyethylene wax differ from polyethylene wax in downstream applications?

How does oxidized polyethylene wax differ from polyethylene wax in downstream applications?
Oxidized polyethylene (OPE) wax carries carbonyl and hydroxyl groups on its molecular chain, giving it polarity that polyethylene (PE) wax lacks. This polarity improves compatibility with fillers, pigments, and polar resins, enhancing wetting, dispersion, and coupling performance. OPE wax offers balanced internal and external lubrication, high softening points, low viscosity, and thermal stability, making it superior for PVC processing, masterbatch production, coatings, and inks. It excels in reducing surface defects, boosting gloss, and improving scratch resistance. While PE wax remains cost-effective for non-polar systems, OPE wax is increasingly the preferred upgrade for demanding applications, replacing montan wax, paraffin, and microcrystalline wax in many formulations.