High density oxidized polytheylene wax OA9 is a high temperature lubricant, which is a new developed macromolecule oxy-polymer and contains a amount of hydroxyl and carboxyl. It is a functional processing aids with excellent performance. OA9 has following advantages for production of PVC foam sheet compares with normal polyethylene wax:

• Increase plastification while reducing torque.
• Decrease the adhesion of thermoplastic melt and increase the flowability.
• The demoulding will be improved, also the production.
• Improve the appearance (glossiness) of product.
• Can subtitute OA6 from BASF and 316A from Honeywell. and significant lower the production cost.