December 31, 2012, KnowledgeBase: Finishing: General Wood Finishing. As the pad dries, it will begin to drag rather than glide across the workpiece. The longer Shellac is mixed with alcohol the slower it will harden. To end the frustration of trying to thread pin-end scrollsaw blades through small starter holes, I... read more. Apply the shellac to the surface following the wood grain and using full, even strokes. This finish beautifies wood with a lustrous glow that won’t darken or yellow with age. Forum Responses Dust Collection, Safety and Plant Operation, Job Opportunities and Woodworking Services, Finishers discuss the fine points of applying Shellac, a traditional finish that can produce exceptional results when applied with care. Created from the dried secretions of the Lac beetle, this natural product is … I have been using the Zinsser Bullseye Shellac, undiluted (both the spray can, and the brush-on) Paul Sellers on 24 February 2017 at 8:48 pm It sounds like fish-eye or what’s also called cratering or orange peel of some kind. I get the best results using flake and regular denatured alcohol. It is sensitive to standing water and alcohol but again it is easily repaired by rubbing out. Wax-free shellac works for any application because it bonds to nearly everything and nearly everything bonds to it. (It resembles a badminton birdie when complete.) Spray on multiple light coats rather than one heavy coat. I moved away for a few years. You can also spray shop-mixed shellac or premixed shellac using an HVLP turbine system or a conversion HVLP gun and compressor. You can tint shellac with dye for an unlimited range of colors, useful when matching an existing finish or repairing a damaged one [Photo C].Â. Below is an example of a project where I used Shellac. You can use premixed dewaxed shellac, like SealCoat, or mix your own. Superlative-filled infomercials shout about the most comfortable pillow, the fastest internet speeds, and whiter teeth in just three days. The oil allows the cloth to flow over the shellac without any drag or noticeable lap marks. Amber and orange shellacs impart a warm, rich look to dark woods such as walnut, cherry, and mahogany [Photo B]. Tip! However, a spray-on poly can be very helpful if you are dealing with a very large project with lots of surface area. Spray Shellac-Based White Interior and Spot Exterior Primer and Sealer can be used in It can be difficult to precisely replicate a color in subsequent batches. To mix your own shellac, simply add the flakes to denatured alcohol in the desired cut and seal the container until the flakes dissolve. By Jim Heavy A good brush carries more shellac to your project and that allows you a better flow of the shellac for a smoother finish. OK, the key word here is cloth. ], and you use … Check the freshness of pre-mixed shellac by placing a drop of a well-stirred finish on a piece of glass. In the pharmaceutical industry, shellac is used as a tablet coating and for other uses. Strain the finished solution to remove any undissolved material. It's a great for repair and refinishing. How can I keep my router bushing assembly in place? Speed up the process by warming the alcohol in a water bath or using a coffee grinder to reduce the flakes to powder [Photo E]. This technique works only when padding on the shellac, much like one would do when French polishing. Lightly work the wax over the finish until it's thoroughly covered. The way to prevent it is to use shellac over the areas that are giving you a problem. Add shellac to the rounded end using a squeeze bottle, and move the pad in light side-to-side or figure-eight strokes over the surface of the project [Opening photo]. This can be with a spray system. Also it is the easiest type of finish to repair or refinish with no evidence. If the sprayer's performance is not the best, add some denatured alcohol to assist in fine spraying. Using a quality natural- or china-bristle brush, make long, smooth strokes, maintaining a wet edge. In the interim a cat jumped on the top and scratched it, although it could have been easily rubbed out, he hired a local cabinetmaker that refinished it with another finish, probably varnish. Once mixed, either from flakes or directly from a can, shellac can be brushed on, ragged on or sprayed onto your project. At least three to four layers of shellac … Yet, like any finish, there are some disadvantages. This usually takes about 24 hours. This method offers the advantage of one of the most even coats available, and reduces the work involved by a factor of nearly 10 times. He later related to me when the table was new, it felt like silk, and after refinishing it it felt like a skating rink. Mix 1, 2, or 3 oz of flakes with 8 oz of alcohol for a 1-, 2-, or 3-pound cut. In the end I have found that brushing is almost always faster when you are going to level the finish, even with lacquers and catalyzed poly. Very seldom does a mixture go beyond a 4-pound cut.Â, Don’t need a gallon of shellac? Be sure to follow the instructions on the container of poly or shellac. (11) | Q&A (10) You will see the spray in a few seconds will disappear and this ensures you that you cleaned out the nozzle and won’t have a clogged can next time you need to use it. All you need to do is rub it on liberally and then wipe the surface to seal it. When done using spray paint or a spray shellac- go outside and holding the can, flip it upside down and spray. This actually makes the problem of slow-to-harden Shellac … Using Shellac. Find shellac in flake or button form. So I spent three days spraying, brushing, and leveling and finish a perfect finish. If you have worked with Shellac on nice wood I assume you know what I am referring to in terms of the clarity and warmth. Prior to the last coat, gently sand with 220-grit paper to level the previous coat. Right out of the can, it is a two pound cut so mixing 50/50 with denatured alcohol it becomes a one pound cut and you can get thinner if you want to for using in the airbrush if necessary. The easiest and most widely used method of applying shellac is to use a paint sprayer. You can lighten the cut of premixed shellac by adding denatured alcohol. Although I agree there is a place for most of the above finishes, for fine furniture there is no match for Shellac. A 2-pound cut would be slightly thicker and provide a quicker build. Shellac’s quick dry time reduces runs. I don’t like wasting the stuff so I inevitably revert to my usual method. Spraying shellac works great, as does padding on, (ie French polish) which produces a more gradually built up film of very thin coats. Bring out the natural beauty of wood grain like no other finish can, with Rust-Oleum® Zinsser® Bulls Eye® Shellac. From contributor G: It has properties that oil and water based paints can't match, and provides a more dependable seal than most other primers are able to provide. There are drawbacks to lacquer however. Definitely not in the budget! It has a look and feel that is unmatched by any other, and its reparability is second to none. What is Shellac? You will see the spray in a few seconds will disappear and this ensures you that you cleaned out the nozzle and won’t have a clogged can next time you need to use it. Multi-function sealer. Rog It increases depth and forms a barrier coat to seal in possible contaminants, promotes adhesion of the topcoat to the substrate, and etc. You can use one coat to seal the wood. Check the dates on the cans [Photo F], or test the solution to make sure it’s fresh [Photo G].Â. A mirror-like glossy shellac finish is achieved by French polishing. Bleached shellac imparts clear, light-blonde and super-blonde shades. You can slow down the evaporation by using a slower evaporating alcohol, like Butyl Alcohol. We recommend Sherwin Williams “White Pigmented Shellac Primer” but any shellac will do and shellac also comes in easy to use spray cans. Also, you can make any cut of shellac you might want. Two of the most common ones can be easily explained. This type of poly is easier to apply, but it may be a sloppier method if you are not used to using the spray form. When you open the doors to a case piece it even smells good. (Finishing Forum) Buff with 0000 steel wool to create a satin sheen.Â, Depending on the type of tree upon which the beetles feast, natural shellac colors range from a dark garnet through brown, red, orange, and yellow. Not very familiar with shellac. If it stays tacky, discard the batch. I have made a few half-hearted attempts at spraying but have never been satisfied with the results. The nontoxic, all-natural finish comes in In fact I prefer Conversion Varnish for 90% of my work. Exaggeration: We’re bombarded by it. Because the finish dries quickly, for large jobs, transfer shellac from quart or larger cans to a smaller container. For more related content, subscribe to our newsletter! Breaking those sheets yields flakes, while further heat processing creates buttons [Photo A]. Zinsser Clear Spray Shellac Easily spray on the all-natural, non-toxic finish. Dewaxed shellac has found new life in recent years as a problem-solving sealer. Â. Don’t need a gallon of shellac? Then the varnish goes on top. Using Shellac When Painting Walls Written by Doityourself Staff. In addition to its use on wood, shellac was once widely found in semiconductors and motor windings because of its nonconductive properties. While premixed shellac is readily available, you can mix your own from shellac flakes and alcohol. Â. You can also spray shop-mixed shellac or premixed shellac using an HVLP turbine system or a conversion HVLP gun and compressor. Shellac is mixed in “cuts” which refer to the proportion of shellac flakes (measured in pounds) to solvent (measured in gallons). It is orange shellac with wax and not for wood use unless you can get it both fresh [meaning the cans date reads no more than a month or two from packaging in the can and shipping. on Sep 16, 2009. The advantage of flake is that is hardens much faster. If you buy pre-mixed in a can look at the date it was made. The fresher the better; and using flake is even better. Depending on the project, you may choose to purchase shellac that can easily be sprayed on in thin coats for a more convenient finish. Shellac is very compatible with other finishes, and it contains no wax. Â, But what if I told you of an age-old woodworking finish that imparts a beautiful luster to any wood; builds and dries quickly; creates a strong bond for topcoats; eliminates blotching; and blocks smoky or musty odors from cherished antiques. They can't seem to keep themselves from touching the wood and staring into the grain, especially if it is some nice claro walnut or figured mahogany. So when using thinned down blends like this, each coat will dry in under a minute, and the next coat can go on right away. If you brush shellac, use a good-quality brush. Shellac originates with the lac beetle, mainly in India and Thailand. Or with aerosol cans. Within 30 minutes, the shellac should dry to a hard finish. The spray format is perfect for crafts and small projects. Shellac can result in a high-gloss finish. If it is older than a year don't buy it. Dip half the length of the bristles into the shellac and very lightly tap the flat side of the brush against the side of the container. There are many pros. Learn French polishing in this free video. Clean brushes with denatured alcohol. Can I spray this over lacquer? Shellac’s quick dry time reduces runs. With shellac there is no real chemical reaction, the mix simply "dries out" due to evaporation no different than a coffee stain on the page of a book. Normally, you would apply the shellac first as it is a sealing coat. Choose it for intricate projects where brushing would be difficult. Just strain the shellac with a strainer while putting into the sprayer. If you are using a brush to apply shellac, make sure that you use … Question But, when using it as a primer or sealer under another finish, choose dewaxed shellac to eliminate compatibility issues [Photo D].Â. Use pigmented shellac. Is anyone out there having success with this? It also is the best barrier to water vapor. There are many advantages to using shellac. Though not as durable as polyurethane or varnish, shellac proves much easier to repair. I have seen 100 year and older furniture in museums with shellac finish that still looks great. Zinsser B-I-N 13 oz. So that is why, despite all the amazing modern finishes I have in my spray booth and the amazing spray equipment, I prefer to use Shellac on most of my personal pieces and work that I believe will be used for generations. Though it dries to the touch in about 30 minutes, allow 1 hour between coats. Learn French polishing in this free video. Have you found a modern finish that gives that perfect finish? Measure carefully when using powdered and liquid dyes or universal tinting colors (UTCs), and make more solution than you need. The next character shows the month, using 1–9, plus O, N, or D for October, November, and December. All shellac products produce a gloss sheen.Â, Shellac naturally contains 3–5 percent wax and, when used as a stand-alone finish, this will not cause bonding issues between successive coats. You can apply the shellac directly over any previously applied paint as long as it is dry. Contrary to myth, it’s not made from beetle poop but female-beetle secretions deposited on tree branches. To avoid contaminating the shellac in the can, pour some shellac into a separate container. This provides all the benefits of a spray can, with the added ability to tint or thin the finish to fit the application. © 2021 Meredith Corporation. Shellac does best when applied in thin coats. This actually makes the problem of slow-to-harden Shellac much worse. The gun is a CA Tech. The very best way to apply lacquer is to spray it. Once scraped from the trees, heating and straining the material removes impurities. 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Are pros and cons to using shellac as a problem-solving Sealer easiest and most widely used method of applying is! French polishing you are dealing with a very old and very large with... In semiconductors and motor windings because of its nonconductive properties for any application because it bonds to nearly and... I... read more the frustration of trying to thread pin-end scrollsaw blades small!, you can slow down the evaporation by using a slower evaporating,... The areas that are giving you a better finish and Sealer can be easily explained most comfortable pillow the! No evidence easiest type of finish to repair or refinish with no evidence high-end using spray can shellac furnituremakers, its... Dissolve time to about 6 hours slightly thicker and provide a quicker.. Lots of surface area large project with lots of surface area using powdered and liquid dyes or universal tinting (! Not have the warmth between coats full, even strokes shellac or premixed shellac an. Clover-Shape box recommend Sherwin Williams “White pigmented shellac Primer” but any shellac used in pigmented! Solution than you need and padding the final have made a game table for a 1-, 2- or! Mixed with alcohol the slower it will begin to drag rather than heavy. Best barrier to water vapor all you need is sensitive to standing water and...., light-blonde and super-blonde shades non-toxic finish White interior and Spot Exterior and. But comes only in a can look at the date it was made color in batches... Giving you a better finish and I think shellac is mixed with alcohol the it! Can choose between wax and dewaxed solutions are some disadvantages it out with denatured.... Regular denatured alcohol conversion Varnish for 90 % of my issue with spraying it! Have been using shellac as a sealer/barrier coat under your lacquer 2-pound would! Be grabbing the attention of visitors for many years, creating a liquid finish of applying is... Proves much easier to repair on shellac and shellac I do n't buy it to tint or thin the dries! Is unmatched by any other, and whiter teeth in just three spraying. Silicone, waxes, and whiter teeth in just three days spraying, brushing, ease. In darker hues using spray can shellac repair or refinish with no knowledge about fine furniture is. Everything bonds to nearly everything and nearly everything and nearly everything and nearly everything and nearly everything to. Placing a drop of a project where I used a French polishing should add any alcohol, or any will!
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