Lubricity improver and corrosion inhibitor for metal working fluids
Hostagliss™ L4
Edition Date :
February 06, 2026
Hostagliss™ L4 is a complex ester and used as lubricity improver and water-dispersable corrosion inhibitor for milky, semisynthetic and neat oil metalworking fluids. Furthermore it is used as synthetic base fluid for rolling emulsions.
Hostagliss™ L4 is also listed on the “Lubricant Substance Classification list (LuSC)". Thus suitable for lubricants with European Ecolabel certification.
Product Information
Benefits
- Excellent lubricity properties
- Reduces energy consumption in metal working operations
- Good inhibition of corrosion on steel as well as inhibition of staining on aluminium
- Minimizes cobalt leaching and helps to protect cutting tools
- Easy to emulsify
- Hard-water stable
- Water-dispersible
- Suitable for mineral-oil free formulations
- Chlorine-free
- No hazardous labeling
- Listed on the “Lubricant Substance Classification list (LuSC)". Thus suitable for lubricants with European Ecolabel certification
- Boron-free and DEA-free
Product details
Product Function
- Lubricity improver
Chemical Type
- Complex esters
Applications
- Rolling
- Metal working fluids (semi-synthetic)
- Metal working fluids (fully synthetic)
- Cutting and forming fluid (neat oil)
- Metal working fluids (milky-type)
| Chemical group | Complex ester, acidic |
| Acid value in mg KOH/g | 50.5 – 55.5 |
| Viscosity at 40°C in mm2/s | 400 |
| Viscosity at 100°C in mm2/s | 45 |
| Viscosity index | 169 |
| Reichert test (5% in mineral oil) | 36 mm2 |
| Reichert test (20% in mineral oil) | 27 mm2 |
| Four-ball wear test : DIN51350 | 0.3 mm |
| TGA inflection point | 345°C |
| TGA deposits | 0.5% |
