The Castrol Performance™ Bio HE ESU hydraulic oil range (previously called Carelube™ HES) are based on carefully selected synthetic esters, which are highly biodegradable and recommended for use in situations where leakage or spillage may present a risk of harm to the environment.
Performance Bio HE ESU Range is used as a hydraulic oil for applications in environmentally sensitive areas such as; near or on waterways, and in the agriculture, forestry, mining and construction industries. The range may also be used for machine tool hydraulic systems where ester based soluble cutting fluids are being utilised and minimisation of impact of contamination is required. Carelube HES range is miscible with conventional mineral oil-based hydraulic fluids and products based on natural esters but, in order to maximise the performance benefits of these products - both physically and environmentally, either through draining or flushing to minimise residues of other lubricants is recommended. This range is fully compatible with the elastomer materials commonly used for static and dynamic seals, such as nitrile, silicone and fluorinated (e.g. Viton) polymers.
Performance Bio HE ESU Range is classified as follows: ISO 6743/4 - Hydraulic Oils Type HEES
Performance Bio HE ESU Range grades meet the requirements (for appropriate viscosity grade) of: ISO DIS 15380
VDMA 24568 Komatsu G3/G4