Thinner Vs Turpant oil # tamil # miracle Rajesh # மிக முக்கியமான ஒன்று

Differences:

Turpentine accelerates the drying time faster than most paint thinners or mineral spirits among other things because it accelerates the polymerization of the oil film since it incorporates oxygen into the mix oxidizing the paint layer from the inside out .

Turpentine can soften the previous layers of paint because it is a very powerful solvent. Oil paints become insoluble to most solvents after 6 month of exposure to atmospheric oxygen. OMS or odorless mineral spirits are petroleum based mild solvent that do not alter the previous layer when you are doing glazes.

Turpentine is more toxic among other things because it evaporates faster creating a concentration of organic volatile compounds.

Neighbors tend to complain more about the smell of turpentine that the petroleum derivates solvents. OMS odorless mineral spirits (Gamsol) has a very faint smell that is hard to notice at least by the neighbors. Which is a pro and a con at the same time when you are painting indoors since you will not notice the smell. But that does not mean that organic volatile compounds are not accumulating in your room and poisoning you. You are just not as aware.

Turpentine dissolves dammar resins which make good removable protective traditional varnish that should be applied after 6 months so that the paint becomes insoluble to the turpentine in the varnish. Petroleum based paint thinners, being a weak solvent do not dissolve dammar resins, but they can be used in synthetic removable varnish like soluvar that according to the manufacturer can be applied as soon as the paint film is dry to the touch. Those same petroleum base solvents can be used to remove said varnish (Soluvar) when required.

You can do oil painting without solvents or at least minimize the use of toxic solvents emitting nasty fumes and bothering people nearby.

Mix colors using spatula, or palette knife which creates cleaner mixes and cleans faster than a paint brush.
Paint using spatula. Easier to clean.
Work oil painting in a paste consistency instead of fluid.
Use artist quality paints that are highly pigmented with no fillers.
Use walnut oil as a more fluid oil for the details.
The classic term “Fat over Lean” means to add more fluid oil (“Fat”) on the final details. It also means to start with a lean paint, a paint with less oil which would have a thicker consistency and should be applied with hard bristles brushes. But it also means slow drying over fast drying. Oil paints dry at different rates according to the kind of pigment in their formula, the kind of oil they use (poppy seed oil, walnut oil, linseed or flax seed oil and the pigment load. You may have to increase the pigment load of some paints by either adding powdered pigments or removing oil out of them by letting them rest for some time on a piece of adsorbent paper.
For the foundation layers use paints that contain fast drying pigments like umbers, and most earths. Apply them very thinly, and with a higher pigment to oil ratio. Leave the slow drying pigments (usually most reds) for the final layers. Some light and cool color like Titanium White take longer to dry among other things because they use a slower drying oil like poppyseed oil.
If you paint in one session or wet on wet you will also benefit from painting fat over lean. Or in this case more fluid over more solid. All because a fluid oily layer of paint applied with a soft brush with a gentle touch have less chance to perturb the previous lean almost solid layer.
It is Oil paint, not solvent paint, and no enamel paint. Avoid solvents as much as you can. Wipe the brushes with a rag, use different brushes for the dark and light colors. At the end of the session you can keep the brushes on an inclined tray with some walnut oil to keep the hairs wet and ready for next day without a need to wash them. For a longer time of storage, wipe the brushes with a rag or paper towel and then wash them with soap and water.
If for any reason you need a fluid effect like in watercolors, use a water based underpainting with fluid acrylics or airbrush acrylics. Oil paint consistency is supposed to be oily (fatty) not watery. Any solvent addition damages the structural integrity of the paint layer.
Do no let the brushes dry with paint. If that happens the best solvent to restore the brushes is essential oil of lavender or rosemary .
If wet paint lands on your skin you can wet a rag in any vegetable oil and clean it. No need for solvent that gets absorbed by your skin.
Paint thinner and turpentine are both solvents. Both can be used to thin oil paint to effect the flow of paint onto the canvas. They can also be used to clean brushes and other tools. Commercially, the term "paint thinner" is rather broad, and can cover many different solvents like mineral spirits, naptha, even turpentine. Most, if not all, commercial paint thinners are mixtures of several solvents which are bound to change from brand to brand and even batch to batch.