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Author Topic: Mineral spirits  (Read 4326 times)

johnbeam

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on: May 01, 2019, 11:15:00 PM
Can you use the mineral spirits you buy at Home Depot for thinning your oil paints and for cleaning up brushes? The large gallon size ?


MaryAnne Long

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Reply #1 on: May 02, 2019, 12:51:23 AM
John

Here's what I do for easy, inexpensive, odorless cleanup of oil brushes:
 
As I finish with each brush during a painting session, I drop it in a jar that has just enough Alberto VO5 2-in-1 shampoo/hair conditioner and a little water to a depth of about a half-inch.  Then when ready to wash the bushes, just swirl them around a few seconds in the jar and run each over a bar of Ivory soap until the color comes off.  In almost no time for very little cost and no toxic smell, your brushes are clean.  Ivory soap is what I was told Norman Rockwell always used.  I buy the shampoo/conditioner when it's on sale for under $1.00!

Another method I have used is is Putting them in a healthy squirt of WD-40, then washing with Ivory Soap as stated above.

Easy, inexpensive.

aloha

mea
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EmmaLee

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Reply #2 on: May 02, 2019, 11:33:38 AM
John- I’m interested to know if the mineral spirits from Home Depot will work too. I have a large container of it in my garage.

Mea- I had no idea you could clean oil paint from brushes that way. I’ll have to try it.
EmmaLee


nolan

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Reply #3 on: May 02, 2019, 08:50:45 PM
You can use it to wash your brushes. I get mine in a 5 liter container at a time from the hardware store.
Never use spirit / turps to dilute your paints. It's job is to clean your brushes. In order to do that it breaks down the bond between the molecules. SO if you use it to thin your paints you are weakening / shortening the life of your painting.
I can't tell you how many paintings have been brought in by students over the years that are cracking as a result of thinning with spirit / turps.

There are only two exceptions to this rule:
1) You can thin with turps if you need to add some splatter over the painting. These drops are so small they cannot crack and if they did you would not notice it.
2) If you are making your own medium, then a high quality spirit can be added ON CONDITION that you are also adding a varnish into your medium mixture. The varnish adds the bonding strength back that the spirit removed.


johnbeam

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Reply #4 on: May 05, 2019, 01:25:30 PM
What do you use to dilute your paints?


nolan

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Reply #5 on: May 05, 2019, 08:20:17 PM
medium.
I recommend one of the commercial brands like Liquin or this one from Winsor & Newton


Gita

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Reply #6 on: May 29, 2019, 10:41:32 PM
I use this: I copied the products assets below:

INFO
Sennelier’s Green For Oil Liquid Medium can be used to replace universal mediums that contain harmful substances. It is a plant-based alternative that you can use like a classic medium to improve the consistency of your paint and create glazes. It can be used in cold temperatures and speeds up drying time while adding a slight gloss to your work.

Renewably sourced natural materials, Eco-friendly.
Improves paints consistency
Can be used for glazes
Speeds up drying time
Adds a gloss finish to your painting
Available in 100ml or 250ml
Sennelier’s range Green For Oil has been designed to be a safer, greener alternative to traditional solvents with all the ingredients being part of the bio-solvent family. These eco-friendly solvents are created from renewable raw materials that are found naturally. They are sourced, keeping biomass and sanitary and environmental standards in mind, from plant, animal or mineral based materials. The careful science and construction means they work very similarly to their traditional counterparts and produce a synonymous result.

Hope this helps.

„We don’t make mistakes, just happy little accidents“ Bob Ross


nolan

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Reply #7 on: June 02, 2019, 09:57:49 PM
that looks interesting Gita :heeha:


stoney

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Reply #8 on: June 13, 2019, 11:13:37 PM
Can you use the mineral spirits you buy at Home Depot for thinning your oil paints and for cleaning up brushes? The large gallon size ?

I don't use the stuff as I don't tolerate it well.

To thin oil paint I'll use either a bit of Liquin or Walnut Oil.

To clean brushes I use Murphy's Oil Soap.  Others utilize Dawn dish washing liquid.
The time it (a work) takes is the time it takes.


stoney

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Reply #9 on: June 13, 2019, 11:20:02 PM
An aside.  If you're going to oil paint thickly with a palette knife I add a bit of Lukas Medium 5 to the paint.  It's transparent and adds to the paint volume.

It dries the paint from the inside in about 3 days without cracking.  When dry, it does have a rubbery texture.
The time it (a work) takes is the time it takes.