Home Products BIOHYD OPTI (HEPR)


LUBECO™ BIOHYD OPTI is a high-performance, renewable hydrocarbon-based (PAO) environmentally acceptable hydraulic fluid (EALs). On the scale of biodegradable hydraulics fluids HEPR is a well-balanced combination of biodegradability and quality of fully synthetic PAO base oils.

BIOHYD OPTI provides a very high level of thermo-oxidative and hydrolytic stability at both high and extremely low operating temperatures. Its modern, zinc-free and ash-free additive technology guarantees maximum lubrication reliability, shear stability and corrosion protection.

BIOHYD OPTI features a low foaming tendency, and good water and air release characteristics, as well as compatibility with seal materials. BIOHYD OPTI is readily biodegradable product for reduced environmental footprint. 

Produced in viscosity classes ISO VG 15/22/32/46/68/100

Industry Performance Standards

  • ISO 6743-4 HEPR 
  • DIN 51524-3 HVLP ▪ ISO 6743-4 HEPR ▪ ISO VG 32 / 46 / 68 ▪ AFNOR NF E 48-603 (HL); ▪ Cincinnati-Milacron P-38 (HL-32), P-55 (HL-46), P-54 (HL-68), P-57 (HL-150), P-62 (FC-10) ▪ DIN 51515, p.1(L-TD), p.2(L-TG); Siemens TLV 9013 04; ▪ BS 489 ; GEK 32568 A/C ; MIL-L-17672 D; CEGB 207001 ▪ Brown Boveri HTGD 90117 ; Alstom HTGD 90 117 V0001 S ▪ U.S.Steel 120; Westinghouse Electric Corp. Spec.

Areas of Application

BIOHYD OPTI is suitable for use in all types of hydraulic systems. It is specifically designed to withstand extreme conditions and corrosion while operating in severe outdoor environments. As well as other types of LUBECO™ biodegradable hydraulic fluids BIOHYD OPTI is particularly recommended for hydraulic systems operating in environmentally sensitive or protected areas. 

Characteristic Features

  • Superior thermo-oxidative and hydrolytic stability
  • Outstanding frictional performance and anti-wear protection
  • Special non-foaming additives
  • Protection against rust and corrosion
  • Designed to withstand extreme conditions, extra low temperature properties
  • Compatible with seal materials, paints and hoses
  • Intended for severe service, extremely long change intervals
  • Readily biodegradable according to OECD 301B and OECD 301D 



ISO-VG viscosity classification ISO VG 46
Base Oil Synthetic oil
Kin. viscosity at 40 °C The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. 46 cSt
Density at 15 °C 870 kg/m3
Kin. viscosity at 100 °C 9.5
Viscosity Index Viscosity Index (VI) is a measure of the change of viscosity with temperature. The higher the VI, the less is the viscosity affected by changes in temperature. > 190
Flash Point > 240 °C
Pour Point The pour point of a liquid is the temperature below which the liquid loses its flow characteristics. < -65 °C
FZG Test >12
Biodegradability in 21 days Pass %

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Pack Sizes

Pack Sizes 20l container20l container

Pack Sizes 205l drum205l drum

Pack Sizes 1000l IBC1000l IBC