Vickers Oils Consumable
HYDROX BIO sterntube lubricants
Emulsifiable biodegradable synthetic-ester sterntube oils (ISO 68-220) for sterntubes, stabiliser bearings and CPP hubs; VGP compliant, OEM approved.
Description
HYDROX BIO is a range of biodegradable sterntube lubricants based on synthetic esters, developed for sterntubes and bearings where water ingress may occur. The oil absorbs sea or fresh water entering the sterntube to form a fluid emulsion, reducing the risk of free water while continuing to lubricate and protect against corrosion. Launched in 2002, it was the world's first biodegradable sterntube lubricant.
Key features
- Available in ISO 68, 100, 150 and 220; HYDROX BIO 68 is the grade generally recommended by bearing and seal manufacturers for regular running
- Neat oil and emulsion with 20% water contamination tested by Class and verified by Lloyd's Register
- Approved by OEMs including KEMEL, SKF Marine and Wärtsilä for up to 5 years with OEM elastomers recommended for EALs
- Biodegradability greater than 60% in 28-day OECD 301B and OECD 306 tests; LC50/EC50 for fish, daphnia and algae above 1000 mg/l
- Meets the ecological definitions of the 2013 US EPA Vessel General Permit (VGP)
Applications
Sterntubes and sterntube bearings; also certain stabiliser systems and CPP hubs.
Specifications
| Typical Viscosity (cSt @40°C), HYDROX BIO 68 | 68 |
|---|---|
| Viscosity Index (HYDROX BIO 68) | 215 |
| Density (kg/l @15°C) | 0.92 |
| Pour Point ASTM D7346 (°C) | < -24 |
| Anti corrosion SKF Water Emcor Test | Passes |
| Emulsifiable | Yes |
| VGP Compliant | Yes |
| Viscosity grades | ISO 68, 100, 150 & 220 |
| Biodegradability | > 60% in 28 day OECD 301B and OECD 306 |
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