Low toxicity. So they are useful to fine artists but provide no special benefit to wood finishers.
h�b``d``r```�w�01G�� 30�0�0�6��g�-`�aP^��$,��j���`��]�a��FA�|�EJ���+|�&�0 �� Before the mid-twentieth century, turpentine was widely used as a thinner and clean-up solvent for oil paint and varnish and also as an oil, grease and wax remover. 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. Water soluble. 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. For our purposes, the principal differences between the two are evaporation rate and oiliness.
Turbinaire Compatible Parts & Accessories. For an explanation of lacquer thinner, which is composed of about half-a-dozen individual solvents, see Lacquer Thinner. MEK and Acetone are both utilized as solvents in coatings, lacquer, varnish, and paint. 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.
Slow evaporation rate. You shouldn’t use it in large quantities unless you wear a respirator mask or a good exhaust system in your shop. Both are regulated and their use is limited in many parts of the country. This quality does not make Acetone the ideal choice for ink products. It is used in many industries as a cleaner and degreaser. �` $X���`��j n$ئ Ny �������! These petroleum substitutes have a solvent strength closer to naphtha and an evaporation rate closer to mineral spirits. 0
It’s important to emphasize that mineral spirits and paint thinner are the same thing. 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. MEK, also known as Butanone and Methyl Ethyl Ketone is a solvent that is related to acetone, because acetone is simply liquid ketone. Acetone is also the most effective solvent for removing the oily resin from the surface of some exotic woods, including teak, wenge and cocobolo, before gluing with a water-based adhesive or finishing with an oil or varnish. Acetone is typically a better solvent than MEK, because it dissolves a wider range of compounds. METHYL ETHYL KETONE (M.E.K) Methyl Ethyl Ketone is strong, fast-drying solvent and degreaser. People often replace MEK with acetone in their industrial applications because it is somewhat less toxic than MEK, but it carries many of the same health and safety risks. One very interesting use for toluene and xylene is to soften latex paint. When understood this way, it’s obvious that odorless mineral spirits is a weaker solvent than regular mineral spirits.
This is the alcohol you should use with shellac. To separate these out, refiners boil the crude and pass the vapors through distillation tubes in a procedure known as fractional distillation. Acetone is better for this application, because its evaporation rate is much faster than that of MEK. You will never feel really comfortable with finishing until you have an understanding of solvents. Heptane and octane are used to make gasoline, a liquid that evaporates very rapidly. This quality is convenient for distillation of moisture in certain applications. I don’t know of any situation in wood finishing where this is important. Methyl Ethyl Ketone is very useful in paint, rust, varnish, lacquer, and grease removers. Soluble with water. It still appears strong enough to thin all common oils, varnishes and oil paints.
Unfortunately, this solvent isn’t widely available for consumers. The first gas to come off is methane, which doesn’t condense at room temperature, only at much colder temperatures.
In fact, the products sold specifically to do this, “Oops!” and “Goof-Off,” are principally xylene. Today, with water-based paints and finishes in wide use, the name could be confusing to beginners. … 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. @��#H ����~=0 OU h Some are even water-based, but these work slower and are less effective than solvent-based.
Naphtha is therefore better for cleaning all types of oily, greasy or waxy surfaces. For a deeper understanding that better relates all the finish solvents to each other, see Understanding Solvents, Part II. VM&P stands for “varnish makers and painters.” Stronger and faster evaporating naphthas exist, but these are rarely sold to the general public. Turpentine is a distillation of pine-tree sap. (Notice the technical difference between the terms “solvent” and “thinner,” even though they are often used interchangeably. The problem with these two solvents is that they are relatively toxic. Since MEK and Acetone share the ketone trait, many assume that they can be used as interchangeable solvents. The mineral spirits left after the toluene and xylene are removed is sold as “odorless” mineral spirits. Highly effective solvent. The process is called distillation—and thus, petroleum distillates.
MEK or Methyl Ethyl Ketone is stronger than Acetone, because it has a slower evaporation rate and boils at a higher temperature. 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. hXko�6�+����^�@ v�&�q��cPm&�jK�$��~�. Brush cleaners are usually more expensive, however. Alcohol is the solvent because it dissolves solid shellac flakes and the dried finish, and it’s the thinner because it thins the liquid shellac after the flakes have been dissolved. Various recycling methods—including refrigeration machine distillers—are compared. Prolonged exposure to acetone is especially dangerous. It is used as the solvent and thinner for shellac.
Newer Post →. Do not let MEK or Acetone come into contact with the skin. Acetone should not be utilized for this purpose, because it is fast-drying. The turpentine substitutes, turpatine and T.R.P.S., are more similar to turpentine than to mineral spirits. You should never use them in any sizeable quantity in a room without good exhaust. Their primary use in wood finishing is for thinning waxes, oils, and varnishes, including polyurethane varnish, and for cleaning brushes.
MEK is also useful in products like dry-erase markers, because it is slow-evaporating. You can usually substitute a brush cleaner for the mineral spirits or lacquer thinner you may otherwise use to clean your varnish or lacquer brushes. At high levels, its vapors can … Methyl Ethyl Ketone is very useful in paint, rust, varnish, lacquer, and grease removers. You may find the extra expense worth it just to avoid the unpleasant odor of regular mineral spirits. If you would like to purchase MEK or Acetone please call (800)-563-1305 or purchase our products conveniently online: Cleaning Electrical Cables Prior to Splicing, https://ecolink.com/wp-content/uploads/2020/05/The-Difference-Between-MEK-and-Acetone-first-draft-blog-title-1.png, /wp-content/uploads/2017/09/New_Ecolink_Logo-32.png.
So it’s rarely possible to dull them short of abrading with real sandpaper or steel wool. Acetone evaporates faster than MEK and, in fact, is the fastest evaporating of all the solvents commonly available to consumers.
They are also used as solvents for some high-performance spray finishes such as conversion varnish. Technical Data | SDS | Request Quote. In situations where shellac is not the finish, denatured alcohol has the further use as a felt-tip-pen ink remover. 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.
Petroleum distillates are also used to remove oil, grease and wax. You can use as much acetone as you want, everywhere. There are two types of alcohol available at paint stores: methanol (methyl alcohol) and denatured alcohol (shellac thinner). Acetone is not considered to be a volatile substance, though its low boiling point does make it more flammable than other substances.
Propylene glycol is a very slow evaporating alcohol that is often used as a “flow additive” in water-based finishes. Benefits of MEK. VOCs are environmental (smog) pollutants. Mineral spirits, on the other hand, doesn’t dissolve varnish; it just thins varnish. The common naphtha available in paint stores is VM&P Naphtha. You will remove it in most cases. Toluene, nicknamed “toluol,” and xylene, nicknamed “xylol,” are the strong, smelly, fast evaporating and “dry” parts of mineral spirits and naphtha.
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