quote:

Originally posted by Biodegradable Oil Guy:
Djordan – I look at the product you reference and it is very expensive. One could find a high quality biodegradable synthetic hydraulic fluid for much less. Also an 80% biodegradable in the CEC-L-33 is marginal at best.

I just wanted to be helpful! Regarding price could you tell me would be US$1546 for 55 gallons drum (registered commercial accounts have that price) considered as competitive price.
Particular oil is not just 80% biodegradable! 80%/21days is rather telling about speed of process than about biodegradable volume.

Djordin, we’re all trying to be helpful. The website lists the HF at $1842/ 55 Gal drum ($33.50/gal). Obviously $1546 ($28.10/gal) is better. You’ll find biodegradable synthetics ranging between $20/gal - $40/gal. Without being commercial, we like to be in the low $20’s for drums and can be more competitive for larger volumes.
The CEC – L- 33 (the biodegradability test that they reference) is a 21 day test and is very mild. The minimum biodegradability to be considered “readily” is 80%. Normally you’ll find values > 90% (some of our fluids exceed 96% in 21 days).

Pat:

I have to agree with Doug Mcbride about American Chem Tech's product Ecosafe. They have just came out with a new product called Ucon Trident that is Ecosafe but in water soluable form. It will wrap up 25,000 PPM of water with no issues. On the other hand it is also Biodegradable and is practically Non-Toxic to Aquatic Life. If spilled it will leave NO Sheen what so ever on water, it becomes one with it and never breaks out. It is not a veggie oil but a full synthetic base stock fluid.

Thank you very much!

Oh.I thing this answer maybe sure. the 'Inherently biodegradable 'you say is just a 'word hook'

quote:

Originally posted by Greg Livingstone:
Biodegradability simply means a chemical breakdown of the material by living organisms in the environment. The net result is carbon dioxide and water. Everything is biodegradable.

The definitions in the oil industry are:

Inherently biodegradable - an oil that degrades >20% in an extended period of time. (By that definition, all oil products are inherently biodegradable.)
Readily biodegradable - >60% of the oil is converted to carbon dioxide in 28 days. (Therefore, the oil that you are using is not readily biodegradable.)

I suggest that you discuss this with your oil supplier and get recommendations for vegetable and synthetic alternatives that are readily biodegradable.

Good luck.

Hi Djordan

Warm Greetings

You can get some good high performing non Toxic Hydraulic Oils with Dow Corning under brand Molykote. To name a few you can see pds of Molykote L-0346FG, L-0368FG

Regards
Shail