Paraffin wax

Paraffin wax (CAS 8002-74-2), also sold as petroleum wax and approved as E905c(ii), is a refined hydrocarbon wax derived from petroleum distillation.

Where is Paraffin wax used?

• Rubber and tire compounding: surface bloom agent and processing lubricant
• Coatings and sealants: viscosity control, slip resistance, surface hardness in films
• Printing inks and packaging coatings: rub resistance and gloss on paper and board
• Plastics processing: external lubricant and mold release agent
• It reduces friction during mixing and extrusion.
• Candle making: imparts rigidity and a predictable melting range; the melt point is selected to suit container, pillar, or votive formats.
• Packaging and building materials: provides moisture resistance to porous surfaces such as paperboard, corrugated materials, drywall, and gypsum board.

Formulation notes

• May react with strong oxidizing agents.
• Contact with copper, brass, zinc, or their alloys is avoided because these metals catalyse degradation.

Typical specification

• Fully refined grades have a maximum oil content of 0.5% by weight (ASTM D721).
• Needle penetration is typically 12 to 22 dmm (ASTM D1321).

Regulatory status

• Subject to full REACH registration in the EU (CAS 8002-74-2).
• Contains no Substances of Very High Concern (SVHC).
• Fully refined grades comply with European Pharmacopoeia standards for medicinal paraffin applications in the EU.
• Fully refined grades comply with U.S. FDA 21 CFR 172.886 for food packaging coatings in the US.

Frequently asked questions about Paraffin wax

Why is paraffin wax used in cable manufacturing?

It is used in the electrical industry for cable manufacturing because it is an excellent electrical insulator.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.