New Products Flash Sale
Thread Tools
Old Jun 01, 2012, 01:43 PM
finallyaheli is offline
Find More Posts by finallyaheli
Registered User
Discussion

Castor oil question.


Hi everyone,
I'm looking into the idea of mixing my own glow fuel like a lot of you already have. I already figured out olive oil does not mix with methanol (cheap experiment).

My question is what is the difference between cosmetic grade and medical grade castor oil? I have found a place that sells cosmetic castor oil in just about 4 liter jugs for a good price. Can cosmetic grade be used in our engines?

Thanks
Chris
Sign up now
to remove ads between posts
Old Jun 01, 2012, 04:56 PM
kenh3497 is offline
Find More Posts by kenh3497
Just Another Brick in the Wall
kenh3497's Avatar
I'm guessing the medical grade is refined a bit more?????

Maybe someone smarter than me will be along shortly.

Ken

Will this help?

http://www.castoroil.in/
RCG Plus Member
Last edited by kenh3497; Jun 01, 2012 at 05:05 PM.
Old Jun 02, 2012, 02:49 PM
ZAGNUT is online now
Find More Posts by ZAGNUT
supreme being of leisure
ZAGNUT's Avatar
PEG-40 "hydrogenated castor oil" is used a lot in cosmetics and as far as i know is totally unsuited for our use. whether or not there is a cosmetics grade of real castor i do not know. maybe find some small natural soap company that caters to hippies and ask what they use.

medicinal is just fine but if you're buying from a pharmacy then you're getting royally raped on the price.
Old Jun 02, 2012, 02:51 PM
Jessiej is offline
Find More Posts by Jessiej
Registered User
Quote:
Originally Posted by finallyaheli View Post
Hi everyone,
I'm looking into the idea of mixing my own glow fuel like a lot of you already have. I already figured out olive oil does not mix with methanol (cheap experiment).

My question is what is the difference between cosmetic grade and medical grade castor oil? I have found a place that sells cosmetic castor oil in just about 4 liter jugs for a good price. Can cosmetic grade be used in our engines?

Thanks
Chris
Castor is available from Sig, Klotz, and Fox among others. Is there a problem with shipping to Canada?

jess
Old Jun 02, 2012, 03:24 PM
Jim Thomerson is offline
Find More Posts by Jim Thomerson
Registered User
On one of the forums a guy said he has been using castor oil bought from a farm supply store. Apparently it is used in some way on horses. He was buying large quantities at a reasonable price. Hydrogenated means made more saturated, fewer double and triple bonds between carbon atoms. I wonder what effect that has on the properties of the oil.
Old Jun 02, 2012, 04:37 PM
Gary Cee is offline
Find More Posts by Gary Cee
Smart to be kind without cruel
Gary Cee's Avatar
I used to buy food grade castor from American Shortening and Oil Company in Livonia Michigan. They were right next door to Sun Electric Product Development Div. when I worked there so it was convenient .

Back then I bought 5 gallon cans for $20 !

Called them last year and they still had it , but now closer to $20/gallon or perhaps more .
For those in SE Michigan anyhow, this could be a source . The oil worked perfectly in the FAI fuel we were using at the time .
RCG Plus Member
Old Jun 03, 2012, 12:27 AM
datsunguy is offline
Find More Posts by datsunguy
Registered User
Medical grade just means the castor plants were grown under US Pharmaceutical rules and regs. SIG castor has been degummed which means less carboning in an engine and is the recommended oil for model engine use. Clarence Lee has written on the subject many times and one of the volumes of his R/C Engine has a dissertation on this subject.

Also Medical Castor USP is sold for other uses if there was an over production of it in a given time frame. It's no different than the other castor out there. If is was degummed SIG could be selling it.
Old Jun 03, 2012, 02:23 AM
fiery is offline
Find More Posts by fiery
Registered User
fiery's Avatar
If I could get the cosmetic grade castor oil I'd mix a small batch of fuel up using it and try it on an engine which is not "critical" to you and which you know runds well.

Personally I expect the cosmetic grade castor would be very good as a model engine fuel lubricant.
Old Jun 05, 2012, 07:25 AM
Reginald is online now
Find More Posts by Reginald
Registered User
Reginald's Avatar

Medical castor oil price in Belgium


I am going to run my Enya 41-4C diesel shortly so I went to my pharmacy to buy some medical castor oil, price was 17,40 euro for one litre.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question castor oil replacement cmulder 1/2A Planes 45 Sep 17, 2012 08:33 AM
Discussion castor oil grrmisfit Engines 15 Mar 19, 2012 12:04 PM
Discussion Why have castor oil in your fuel opposed to synthetic oil? Sir-Ipswich Car Talk 1 Aug 09, 2007 07:48 AM
Removing Castor Oil from Wood? Brill 1 Fuel Plane Talk 12 Jan 27, 2004 04:04 PM