Sasol Wax A28

Description

Sasolwax A28 (Oxidised Fischer-Tropsch Hard Wax)

Sasol Wax A28 (CAS: 68153-22-0) is a premium-grade, polar-modified synthetic hard wax produced through the oxidation of linear Fischer-Tropsch hydrocarbons. Supplied as a white to off-white coarse powder, it combines high congealing points and exceptional structural hardness with functional carboxyl and ester groups. This chemical modification imparts emulsifiability, excellent dispersion properties, and superior compatibility with polar polymers, resins, and aqueous systems.

Commercially produced by Sasol Chemicals, it is globally known under trade names such as Sasolwax® A28, Sasolwax A-28, Oxidized FT Hard Wax A28, and belongs to Sasol’s specialized Sasolwax® A-Series of polar synthetic waxes.

Key Performance Features & Benefits

• Emulsifiability & Aqueous Compatibility: Functional acid and ester groups allow ready saponification and emulsification, making it ideal for water-based coatings, inks, and polishes.

• High Thermal Stability & Hardness: Sasol Wax A28 retains a high congealing point (95 °C- 102 °C) and low needle penetration value, enhancing anti-blocking, mar resistance, and heat endurance.

• • Internal & External Polymer Lubrication: Sasol Wax A28 serves as a performance-enhancing additive in PVC processing, masterbatches, and polymer formulations to improve mold release and surface finish.

  • Polish & Coating Polishability: Imparts durable gloss, water repellency, and scuff resistance to floor care, automotive, and shoe polish formulations.

  Technical Specifications & Product Properties

  Property	Specification / Typical Value	Test Method
  Chemical Type	Oxidised Fischer-Tropsch Hard Wax	Internal / ISO
  Common Trade Names	Sasolwax® A28, Sasolwax A-28, Oxidized FT Wax A28	—
  CAS Registry Number	68153-22-0	—
  Appearance	White to light-colored coarse powder	Visual
  Congealing Point	95 °C – 102 °C	ASTM D 938 / ISO 2207
  Penetration at $25 °C	≤ 4 x 0.1 mm (Max 4)	ASTM D 1321
  Acid Value	27 – 29 mg KOH /g	ASTM D 1386/7
  Saponification Value	50 – 80 mg KOH /g	ASTM D 1386/7

  Primary Applications

  • Hot-Melt Adhesives & Sealants: Modifies viscosity, open time, and setting speed while strengthening thermal resistance.

  • Water-Based Inks & Coatings: Added to powder coatings, flexographic inks, and overprint varnishes for rub resistance, slip control, and surface protection.

  • Polishes & Consumer Goods: Used in liquid and paste polishes for floors, automotive surfaces, and leather care to deliver mirror-like shine and protective barrier properties.

  • Polymer Processing: Utilized as an external lubricant and processing aid in thermoplastics and masterbatch compound preparation