Heptane and octane are used to make gasoline, a liquid that evaporates very rapidly. Like MEK, it is commonly used in industrial applications as a solvent for resins, waxes, oils, fats, lacquers, varnishes and other coatings and adhesives. endstream endobj 8 0 obj <> endobj 9 0 obj <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageC]/XObject<>>>/Rotate 0/TrimBox[0.0 0.0 792.0 612.0]/Type/Page>> endobj 10 0 obj <>stream %%EOF You can add acetone to lacquer and shellac to get them to dry faster in cold temperatures. MEK or Methyl Ethyl Ketone is stronger than Acetone, because it has a slower evaporation rate and boils at a higher temperature.
For more on dissolving and thinning, see What Dissolves and Thins What.). They are also used as solvents for some high-performance spray finishes such as conversion varnish. You will remove it in most cases. h�b``d``r```�w�01G�� 30�0�0�6��g�-`�aP^��$,��j���`��]�a��FA�|�EJ���+|�&�0 �� Methanol evaporates a little faster than denatured alcohol, but methanol is toxic and could blind or even kill you if you breathe too high a vapor concentration for too long. �` $X���`��j n$ئ Ny �������! The disadvantage of odorless mineral spirits, of course, is that it is considerably more expensive because of the extra steps necessary to produce it. (It’s easiest to clean shellac with household ammonia and water.) MEK is also useful in products like dry-erase markers, because it is slow-evaporating. 7 0 obj <> endobj Brands of brush cleaner and deglosser (liquid sandpaper) vary greatly in their composition. It is used in many industries as a cleaner and degreaser. Cleaning grease or wax is no problem, but high-performance paints and finishes such as powder and UV-cured coatings, catalyzed lacquer, conversion varnish and even oil-based polyurethane are very solvent resistant. Acetone is not considered to be a volatile substance, though its low boiling point does make it more flammable than other substances. Solvent Recycling: Acetone, MEK, Lacquer Thinner and Toluene This guide examines the recycling of solvents to reduce hazardous wastes, expenses and the burden of regulatory requirements. Crude is a mixture of hydrocarbon chains of various lengths and structures with unique boiling points. You can use as much acetone as you want, everywhere. This is the alcohol you should use with shellac.
When understood this way, it’s obvious that odorless mineral spirits is a weaker solvent than regular mineral spirits. Various recycling methods—including refrigeration machine distillers—are compared. Their primary use in wood finishing is for thinning waxes, oils, and varnishes, including polyurethane varnish, and for cleaning brushes. Toluene and xylene are very effective as oil and grease removers, but naphtha should be adequate for most situations. Lacquer Thinner is excellent at cleaning brushes, tools, and equipment immediately after use. %PDF-1.6 %���� Alcohol both dissolves and thins shellac. VOCs are environmental (smog) pollutants. For our purposes, the principal differences between the two are evaporation rate and oiliness. To produce solvents from petroleum, the liquid is heated and gases are taken off and condensed as the temperature increases. The first gas to come off is methane, which doesn’t condense at room temperature, only at much colder temperatures. Denatured alcohol is ethanol (the alcohol in beer, wine and liquor) that has been made poisonous so we don’t have to pay liquor taxes to buy it.
To place turpentine among the petroleum distillates, think of it as having the solvent strength of naphtha but the evaporation rate and oiliness of mineral spirits. Since MEK and Acetone share the ketone trait, many assume that they can be used as interchangeable solvents. I don’t know of any situation in wood finishing where this is important. Do not let MEK or Acetone come into contact with the skin. Unfortunately, this solvent isn’t widely available for consumers. (Notice the technical difference between the terms “solvent” and “thinner,” even though they are often used interchangeably. Lacquer Thinners is not meant to be used with Enamel Paints so there are obviously a lot of drawbacks when it is still used to thin Enamel Paints. Mineral spirits, on the other hand, doesn’t dissolve varnish; it just thins varnish. It still appears strong enough to thin all common oils, varnishes and oil paints. Unlike Acetone, MEK forms an azeotrope with water, which means that methyl ethyl ketone and water mix together to form a constant boiling point that cannot be affected by distillation. Amazingly, there are manufacturers who try to trick you into paying more by labeling their containers “pure” mineral spirits and charging more. Naphtha is a stronger solvent than mineral spirits, but this is rarely significant in wood finishing. They will affect your nervous system causing irritability and drunkenness, and in large doses could cause serious health problems. MEK and Acetone are both utilized as solvents in coatings, lacquer, varnish, and paint. Petroleum distillates are also used to remove oil, grease and wax. Lacquer Thinner Denatured Alcohol Acetone MEK Xylene Japan Drier Classic wood finish General Purpose Blend Extra refined to remove odor, residue Pure gum artist grade thinner Excellent for spraying oil paint Architectural coatings blend Extremely pure Extremely pure Slower dry time than acetone Toluene substitute Speeds dry time in low temp/humidity Fuel.
Dampen a cloth with denatured alcohol and wipe over the mark. Emulsified furniture polishes are better cleaners because they remove both solvent- and water-soluble dirt. Using a dampened cloth (and solvent-resistant gloves) you can easily remove latex paint that has spattered off a paint roller, or even a full coat of latex paint, from any finish except water-based finish (you’ll remove the water-based finish too), without causing any damage to the underlying finish. Acetone is often utilized as a paint thinner. @��#H ����~=0 OU h Soluble with water. What is left unsaid about deglossers is that it matters greatly what paint or finish you’re trying to clean and dull. You may find the extra expense worth it just to avoid the unpleasant odor of regular mineral spirits.
The nickname for mineral spirits is “paint thinner.” Back in the early days of mineral spirits, before the Second World War, all paints were oil-based.
Prolonged exposure to acetone is especially dangerous. This quality does not make Acetone the ideal choice for ink products.
Toluene evaporates a little faster than xylene, but this is significant only when using the solvent as a thinner. Some are even water-based, but these work slower and are less effective than solvent-based. Paint thinner is used only with oil-based paints and finishes, never with latex paints or water-based finishes. The two most widely used finishing solvents are mineral spirits and naphtha. But the better solvent strength is important with some artist’s paints. With the growth of the automobile industry and its need for petroleum products, a large number of petroleum solvents were introduced and these have almost entirely replaced turpentine because they are less expensive and have less unpleasant odor. Both acetone and MEK are very strong (high solvent strength) and fast evaporating solvents. Petroleum distillates are distillations of petroleum. Because white and yellow glues are the same chemistry as latex paint, you can also use toluene or xylene to soften and scrub these glues from wood when you have glue seepage or finger prints you didn’t fully remove during sanding. Following is an overview of each of the most commonly available solvents. 0 Acetone is unique in that it is the only common solvent that is exempt as a VOC (volatile organic compound) and HAP (hazardous air pollutant). Copyright © var year = new Date();document.write(year.getFullYear()); Apollo Sprayers International, Inc. All rights reserved. Today, with water-based paints and finishes in wide use, the name could be confusing to beginners.
Don’t use gasoline.
METHYL ETHYL KETONE (M.E.K) Methyl Ethyl Ketone is strong, fast-drying solvent and degreaser. hXko�6�+����^�@ v�&�q��cPm&�jK�$��~�.
Slow evaporation rate. You won’t damage any finish except shellac as long as you don’t soak the surface. The turpentine substitutes, turpatine and T.R.P.S., are more similar to turpentine than to mineral spirits. To separate these out, refiners boil the crude and pass the vapors through distillation tubes in a procedure known as fractional distillation.
Lacquer (nitrocellulose, CAB-acrylic, catalyzed), ← Older Post In fact, the products sold specifically to do this, “Oops!” and “Goof-Off,” are principally xylene. 54 0 obj <>stream Turpentine is a distillation of pine-tree sap. VM&P stands for “varnish makers and painters.” Stronger and faster evaporating naphthas exist, but these are rarely sold to the general public.
Acetone and MEK have very similar traits and can be used for many of the same purposes, but they also have specific applications that each is best suited for.
Highly effective solvent. The petroleum distillates we use in wood finishing evaporate much slower than gasoline and are relatively safe to use in small quantities, even with poor ventilation. But it’s still not wise to use them in a room with a flame such as a pilot light, and you should protect yourself with better ventilation if you use them for long periods of time.
Acetone is typically a better solvent than MEK, because it dissolves a wider range of compounds. Low toxicity. You can add acetone to lacquer and shellac to get them to dry faster in cold temperatures. The process is called distillation—and thus, petroleum distillates. You will never feel really comfortable with finishing until you have an understanding of solvents.
Both MEK and Acetone can cause drowsiness and dizziness. )9�SǱ��HdQ���y!�pK���;"%�%�C�Xl�0*�0�&�&B�v2�B�t�(�;©SD�w�-��p�%��p��Yn��k��G�J�.6J����|pXDc�O1g�(�Q�(�AaWM����'I�Ti���������_8��mÁ�K��}����h�k�����mv�b�R*����T2�ri,5=8��I�]S�zЙf�0��l� �3���2�n}���+��Ѷ�|��wE2Û5�7�}�N+����d�f>��`�ƻT�Z�5���C���`\m�����̌�1P�)BG�2e��6� Ӓ����]*�6q2c(�2��0V�Mdg�ϸ�&P!U!P��r,�FX��i��n�����TR�e�&���P�����e�`2���6c0'�q��V�-�U��"l1þ�C�:��F���. The problem with these two solvents is that they are relatively toxic. Technical Data | SDS | Request Quote. Furniture polishes are primarily petroleum distillates in the evaporation range slightly slower than mineral spirits. endstream endobj startxref Methyl Ethyl Ketone is very useful in paint, rust, varnish, lacquer, and grease removers.
The nickname made sense. The common naphtha available in paint stores is VM&P Naphtha. Acetone is inexpensive compared to Methyl Ethyl Ketone, which is why it is more often used for consumer products such as nail polish and nail polish remover. For a deeper understanding that better relates all the finish solvents to each other, see Understanding Solvents, Part II.
The mineral spirits left after the toluene and xylene are removed is sold as “odorless” mineral spirits.
The process of refining crude oil to produce gasoline, kerosene and other fuels also yields a number of other products, including solvents. Newer Post →. Naphtha evaporates faster than mineral spirits and is “drier,” that is, less oily.
Benefits of MEK. You shouldn’t use it in large quantities unless you wear a respirator mask or a good exhaust system in your shop.
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