HiTEC® 523

Anti-wear Hydraulic Additive Package
To inquire about availability in other regions or to find out more contact your Afton Representative.

Key Performance Benefits


  • Denison HF-0, HF-1, HF-2 approval based on performance in the T6H20C hybrid pump test
  • Meets the requirements of DIN 51524 part II, ISO 11158 HM, SAE MS 1004 HM and ASTM D6158 HM 
  • FZG A/8.3/90 load stage 10 Pass
  • Filterability in the presence of water
  • Protection of yellow metals in the presence of water
  • Robust oxidation, rust and corrosion protection
  • Approved against Cincinnati Machine P-68, P-69 and P-70 specifications
  • Excellent wear protection, demonstrated by performance in the ISO 20763 (Conestoga) vane pump test


HiTEC® 523 additive is a low zinc antiwear hydraulic package meeting several requirements. HiTEC® 523F is also available and contains a defoamant system which is designed to work in Group I & II base oils.

Handling Information

Max Handling Temp: 75°C
Shelf Life: 24 months @ ambient temperature



Typical Characteristics

Recommended Dosage

The recommended dosage for HiTEC® 523 additive is 0.6% wt. HiTEC® 523F also available for improved anti-foam performance. Please contact your Afton Chemical representative for specific recommendations.