Mineral spirits Vs traditional thinner? - Router Forums
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post #1 of 23 (permalink) Old 07-02-2016, 06:47 AM Thread Starter
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Default Mineral spirits Vs traditional thinner?

When should I use mineral spirits over traditional thinner? I just invested is some really good brushes and was told to use ONLY mineral spirits for bush cleaning. Is that true?

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post #2 of 23 (permalink) Old 07-02-2016, 07:45 AM
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I thought thinner and mineral spirits were the same thing. Basically a varsol.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #3 of 23 (permalink) Old 07-02-2016, 08:04 AM
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I agree with Chuck.

I'm assuming that you are speaking of oil based paint now. For latex of course, you only need warm soapy water.

What you really need to consider is whether or not the brush cleaner will do the job on the paint at hand. If you are using lacquer, you'd use lacquer thinner.

Many years ago I used to do sign painting. A good lettering brush can be very expensive, even though it may be very small. In order to prolong the life of a high quality brush I used to add lard to the bristles and then wrap it up in wax paper. This keeps the bristles pliable. I still have some lettering brushes in excellent condition which I first used way back in the 1960's!

Some things are worth taking care of, and a good brush is one of them.

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post #4 of 23 (permalink) Old 07-02-2016, 08:44 AM
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You can use gasoline or lacquer thinner to clean brushes but I wouldn't. Maybe this is why they said use mineral spirits. Also some people call mineral spirits paint thinner. All I have ever seen are the same.

Don in Murfreesboro,Tn.

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post #5 of 23 (permalink) Old 07-02-2016, 08:51 AM
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I always thought the 2 were one in the same????

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Using a couple of old Craftsman routers & a Bosch 1617EVSPK & a Dewalt DWP611PK Routers in SW Louisiana.
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post #6 of 23 (permalink) Old 07-02-2016, 09:17 AM
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The rule I always used to keep good brushes clean and pliable using oil paint is to clean the brushes 3 times with mineral sprits and them wash with warm soapy water at the end. Let dry then put back in cover to keep the brush's bristles in shape. Three times means start with fresh mineral sprits each time for each brush. Anything less and I have sticking brush bristles a couple of days later.

I have some 30 and 40 year old brushes which are only used for oil paint and finish depending on the brush and hair content. I am not a commercial painter though but my rule has worked for me over the years.
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post #7 of 23 (permalink) Old 07-02-2016, 01:25 PM
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Quote:
Originally Posted by JimofSC View Post
When should I use mineral spirits over traditional thinner? I just invested is some really good brushes and was told to use ONLY mineral spirits for bush cleaning. Is that true?

since you asked...

.
Attached Files
File Type: pdf difference - MS, thinner, and turps.pdf (138.7 KB, 778 views)
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post #8 of 23 (permalink) Old 07-02-2016, 03:13 PM
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Quote:
Originally Posted by Cherryville Chuck View Post
I thought thinner and mineral spirits were the same thing. Basically a varsol.
Usually, paint thinner is cheaper to purchase by a pretty good amount. Mineral spirits can be up to double the cost. The reason for this is mineral spirits receives more thorough refinement. This cleaning of the material also is what makes it less noxious to use. The bottom line is that it takes more work to produce mineral spirits than paint thinner, and you get what you pay for.

Read more: http://www.doityourself.com/stry/3-a...ner#ixzz269kUZ...

In addition, turpentine is distilled from tree sap. Chemically similar to mineral spirits, but smellier and slower evaporating.

More than you probably wanted to know: http://news.thefinishingstore.com/?p=357

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Last edited by Stick486; 07-02-2016 at 03:18 PM.
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post #9 of 23 (permalink) Old 07-02-2016, 04:03 PM
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More refinement means they are basically the same thing but with some elements removed. According to the PDF its the xylene and toluene. I believe both are forms of varsol. When I worked for an Esso bulk dealer we had available for sale up to 5 different grades of varsol. One or two were odorless, one of which was also sold to dry cleaning shops (yes they used varsol to clean your clothes). I would suspect that the odorless ones were closer to mineral spirits, or the same, and that the ones for parts cleaning were closer to or the same as being paint thinner.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
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post #10 of 23 (permalink) Old 07-03-2016, 06:37 AM Thread Starter
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[B]Thanks for all the good reply's. As always I got my answer. And yes I meant "paint thinner" when I said "traditional thinner".
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