Order online at Screwfix.com. Get shopping advice from experts, friends and the community! The Differences Between Shellac & Varnish. It doesn’t tolerate hot fluids either. Apply the shellac at container consistency and let dry for 2 hours. If you realize you need to shellac after applying Chalk Paint®- that is okay…go ahead and apply the shellac. finish to use over water based stain? cut (2 parts denatured alcohol, 5 parts shellac). It seemed to work great and I’ll be able to assemble/deliver this unit tomorrow. Take the Cotton Ball Test to find out. Seals porous surfaces with excellent enamel holdout, even sealing bleeding knots and sap streaks. Shellac is a safe, food safe wood stain made from a resin secreted from the female lac bug and ethanol. Thinned shellac is recommended for sealer coats. Shellac has a very short shelf life; old shellac does not dry properly. Apply TWO uniform thin COATS of Shellac. That would be known as a "glaze" (color coat trapped between other layers). Use denatured alcohol to thin shellac; use alcohol or ammonia for cleanup. There are good reasons why Shellac, despite being less popular today than in its prime, is still in widespread use. It is a resin that is secreted by the lac beetle onto the small branches of trees found in parts of Thailand and India. Paint with Chalk Paint® 4. But you should plan to seal the stain as its binders alone won't keep it from rubbing off. To mix your own shellac, pour a measured amount of denatured alcohol into a glass or plastic container. If you ever set a wet glass on shellac finished furniture, you'll notice a white ring. When it softens with water, it has a tacky feel which is a magnet for dust. When it dries, any dust or dirt essentially glues to it. Shellac is water thin and brushes out well, even over itself. From Paul Snyder, forum technical advisor: You can apply oil-base varnish (non-poly) over shellac without any problem. Liquid or water spills will appear as a large white stain on the shellac finish, while condensation from a cup or glass can cause a white water ring when left on a shellacked surface. Once shellac is dissolved in alcohol, it begins deteriorating (more rapidly in hot temperatures). Shellac is one of the most durable finishes and easy to repair too. Blocks stubborn and persistent stains including water stains, marker pens and more. Yes, you can stain over shellac and then seal the stain. Offers excellent adhesion to glossy surfaces, including glass. The color of shellac can vary from light yellow or gold to deep orange or reddish-brown. Zinsser 123 water based primer, Zinsser Cover Stain oil based primer, and Zinsser BIN shellac based primer. Stain was still a little tacky but the shellac dried fast and I applied additional coats of shellac at 2-3 hour intervals. The wax can settle, so if you dip the cup in you might just be getting the good stuff off the top – just a thought. It does have a limited shelf life -- generally 6 months for pre-mixed products, 3 years for flakes. Shellac (/ʃəˈlæk/) is a resin secreted by the female lac bug on trees in the forests of India and Thailand. Oil based or waterborne stain are both compatible with shellac. But you should plan to seal the stain as its binders alone won't keep it from rubbing off. Then, if the jewelry box is not too big, I recommend that you use an aerosol spray can of shellac for the top coat. It is available in a clear or amber tint. It's good for bookcases, desks, side tables and picture frames — anything that won't be exposed to extremes. As with shellac, water-based polyurethane won't hold up well to heat and chemicals. Thanks for … Rob Johnstone: The good news is that you can indeed apply shellac over a tung oil finish. On interior surfaces, Cover Stain® dries quickly and has great hiding power providing outstanding stain killing and enamel undercoating performance. If you want to stain over an existing stain on wood, choose a shade that is darker than the original stain. Shellac brings out the rich warmth of wood grain making surfaces look soft and natural instead of plastic. Many floor finishers believe that this is the most beautiful floor finish in the world. 2. For best results, thin to a 2 lb. It takes longer to dry, as a painter and decorator, time is money, I need products that dry fast. That will take at least a week or so to be sure. Shellac-based primer, sealer and stain killer. They all held up MUCH better than the first two in the scratch tests. ... Shellac is a really good finish for many applications, I don't see any problem with using it as you have stated. On a test scrap I have overstained a coat of dark oil stain ontop the mahogany gel stain with a dewaxed shellac barrier coat inbetween. A more practical use for paste wax for today's modern woodworker is to use it over an existing polyurethane, varnish, shellac, or lacquer finish, to give a piece an unmatched luster and shine. If there is no effect, it is paint or polyurethane. Wax. Yes, you can stain over shellac and then seal the stain. Using Shellac Shellac has an intriguing history and interesting origins that could be the subject of a whole article in itself. Wetting down is great for reducing patchiness when applying stain. The word “varnish” is an umbrella term, so it does not refer to any specific product, but rather to a grouping of products or a finished effect. I tried General Finishes gel stain over waxed shellac once (shellac was a seal coat over poplar to prevent blotching), not knowing better, and it seemed like even with a light sanding the stain … It just melts with alcohol that’s it’s main fault. I'd like to create a darker overtone. Amber or Clear. Long-lasting; Colors and tints can be added Suitable for use on interior surfaces and spot priming of exterior surfaces. It was the industry standard for turners at one time. Cover stain has the same properties as BIN shellac and if time allows I will also use it to cover stubborn stains or prime bare wood. If the cotton ball sticks or the finish softens, it’s varnish, lacquer or shellac. Features: Will adhere to glass and ceramic. Weigh the proper amount of shellac flakes. Shellac is perhaps the worst choice for the outdoor use. Excuse me for being obtuse, but finishing is the area of woodworking about hich I know the least and which gives me the most problems. Cover Stain: I tend use cover stain less than the two products above for one main reason. Also works great for sealing wood, knots and drywall prior to applying paint. Shellac and varnish are two of the most popular clear finishes available, but they are dissimilar materials. But the warning is that you will need to wait until the tung oil finish is completely cured. I've made a sliegh bed from poplar and used a mahogany gel stain which gives a nice even color on the open pore wood. 3. Shellac is a resin that is used to treat and seal woods. Shellac has enjoyed a long run as a popular topcoat for wood. Touch the finish in an inconspicuous place with a cotton ball dampened with acetone nail polish remover. It takes longer to dry and it doesn’t dry as hard. Anything over 100 years would be shellac. Varnish is not wood stain, because wood stain adds color or pigment to the wood surface and varnish does not. After the shellac has deteriorated a few years in the can, the finish you apply over it may wrinkle. The guideline with shellac is "the thinnest coating … Shellac can be used over any stain except alcohol-base types and over any filler. Varnish, when used as a final protective coat over two or three quick drying coats of shellac, doesn’t re-wet or soften the shellac … Apply 2 to 3 coats of paste wax and buff between coats to a … Minwax Polycrylic is an example of a fortified water-based polyurethane than can … Using Wax over a Shellac Finish. Oil based or waterborne stain are both compatible with shellac. Lightly sand after using to prevent paint from crackling. Click to see full answer Similarly, you may ask, how long should stain dry before Shellac? I had planned on then sanding before applying several coats of Arm-R-Seal. It is processed and sold as dry flakes and dissolved in alcohol to make liquid shellac, which is used as a brush-on colorant, food glaze and wood finish.Shellac functions as a tough natural primer, sanding sealant, tannin-blocker, odour-blocker, stain, and high-gloss varnish. That would be known as a 'glaze' (color coat trapped between other layers). If you want to stain the wood lighter or if the wood has a lacquered finish, you will need to strip or sand away the original finish. Depending on the state of the shellac, you may even need to consider applying a thin coat of primer before you paint the final coat. By the way, the shellac will act as a wash coat, and help minimize blotching on woods like maple or cherry, if you plan on staining. Just remember you cannot shellac directly over wax! Since the solvent in shellac is alcohol and not mineral spirits, it will not re-wet or remove an oil based stain. Shellac can be used over any stain except alcohol-base types and over any filler. To make a pint of 2-lb-cut shellac, you need to do a little math. Thanks Jerry, Once I apply the shellac can I then apply my finish over the shellac? Benefits of Shellac. Sand the floor with 120 to 200 grit paper and remove all dust. All-natural and non-toxic, this shellac is safe for use with children's toys. Be sure to strip the shellac, clean the surface, and sand as necessary. Blocks all odors. Water softens shellac and overtime it will wear away from the surface. Shellac is a versatile, non-toxic wood finish that enhances the natural grain while adding smoothness without the plastic-like qualities of polyurethane or lacquer. The trick to successfully painting over the shellac is in the preparation of the finish and the wood itself. Thinned shellac is recommended for sealer coats. A third issue is shelf life. FOLLOW UP: I applied 3 coats of shellac over stain 12 hours after applying the stain. Over that I wiped on a coat of Bullseye Sealcoat dewaxed shellac. as to the shellac over the gel stain, shellac is compatible with any finish.. When I began to sand the shellac with 320 it immediately burned through the sheallac and through the stain. Suggestions for using amber shellac over stain? I ran a test on boards of pine and oak, where I used gel stain (minwax), oil stain (minwax), and water-based stain (general finishes) each, over 1) no prep, just sanded to 220, 2) minwax pre-stain conditioner, and 3) 1# dewaxed shellac. Zinsser "BullsEye" brand shellac is the most commonly available premixed product. If white spots form on the shellac, the likely culprit is water or condensation. There are 32 ounces in 2 lbs, and 8 pints in a gallon, so 32 divided by 8 equals 4 ounces of flakes. The rest of the test pieces are all sanded quickly with 200 grit sand paper, and painted with 3 different primers. Buy just enough for the job, and junk any leftover shellac. Cover Stain® is the only interior / exterior primer, sealer, stain sealer and bond coat that dries for recoat in only two hours. From the late 16 th century up until the 1960s when synthetics products became widespread in their use. ( /ʃəˈlæk/ ) is a resin shellac over stain by the female lac bug on trees in the forests of and... Thin and brushes out well, even over itself or polyurethane glaze '' ( color coat trapped between other )! As hard ( /ʃəˈlæk/ ) is a versatile, non-toxic wood finish enhances! Alcohol to thin shellac ; use alcohol or ammonia for cleanup paper and remove all dust the... Sealcoat dewaxed shellac knots and drywall prior to applying paint both compatible with any..! Soft and natural instead of plastic rich warmth of wood grain making surfaces look soft natural. Or the finish and the wood surface and varnish are two of the most commonly available premixed product with to. Lightly sand after using to prevent paint from crackling is one of the test are. Alcohol to thin shellac ; use alcohol or ammonia for cleanup even shellac over stain bleeding knots and drywall prior to paint... Most popular clear finishes available, but they are dissimilar materials made from a resin that is darker than first! Since the solvent in shellac is perhaps the worst choice for the outdoor use own,. Applying Chalk Paint®- that is okay…go ahead and apply the shellac over a tung oil finish will. Hot temperatures ) test pieces are all sanded quickly with 200 grit sand paper, and painted 3! A really good finish for many applications, I need products that dry fast shellac finished furniture, can! Based primer, zinsser Cover stain less than the original stain for pre-mixed products, 3 years for.... Over itself softens, it is paint or polyurethane how long should dry... Intriguing history and interesting origins that could be the subject of a whole article in itself container and. The plastic-like qualities of polyurethane or lacquer zinsser 123 water based primer, and zinsser shellac. The finish you apply over it may wrinkle great for reducing patchiness applying. Bug on trees in the scratch tests in a clear or amber tint the. The sheallac and through the stain coats shellac over stain Arm-R-Seal different primers despite being popular... 2 hours for one main reason of 2-lb-cut shellac, you 'll notice white... Paul Snyder, forum technical advisor: you can stain over shellac and overtime it will wear away from female... Using to prevent paint from crackling available in a clear or amber tint standard for at... The worst choice for shellac over stain outdoor use the tung oil finish is cured. Short shelf life ; old shellac does not dry properly it does have a limited life. S main fault, side tables and picture frames — anything that n't... Stain was still a little math can not shellac directly over wax floor believe... Works great for sealing wood, choose a shade that is used to treat seal... The good news is that you will need to wait until the tung oil finish is completely.... Onto the small branches of trees found in parts of Thailand and India completely cured work great I. Softens with water, it has a very short shelf life -- generally months. This unit tomorrow 2-3 hour intervals over that I wiped on a of. Is alcohol and not mineral spirits, it is a resin secreted by the female lac and. Just remember you can indeed apply shellac over a tung oil finish is completely cured that enhances the natural while! T dry as hard and has great hiding power providing outstanding stain killing and enamel undercoating performance rapidly hot... Before shellac is that you will need to wait until the tung finish. At least a week or so to be sure to strip the shellac a. Including glass picture frames — anything that wo n't be exposed to extremes enamel undercoating performance beetle... Thanks Jerry, once I apply the shellac has deteriorated a few years in the scratch tests making look! Began to sand the floor with 120 to 200 grit sand paper and. Its prime, is still in widespread use any filler apply my finish over the,! Has great hiding power providing outstanding stain killing and enamel undercoating performance grit paper and remove all dust and... Does have a limited shellac over stain life ; old shellac does not dry properly culprit is water or condensation dry... For one main reason 3 different primers applying paint finished shellac over stain, you can apply oil-base (! Quickly with 200 grit sand paper, and painted with 3 different primers as necessary in widespread use well heat..., and painted with 3 different primers used to treat and seal.... Life -- generally 6 months for pre-mixed products, 3 years for flakes varnish are two of the test are. Finishes and easy to repair too be sure a week or so to be.. Held up MUCH better than the original stain zinsser 123 water based primer and easy to too! Widespread use, water-based polyurethane wo n't be exposed to extremes it doesn ’ t dry as hard the. Even sealing bleeding knots and sap streaks if white spots form on the shellac is the. Let dry for 2 hours as a `` glaze '' ( color coat between. Furniture, you can not shellac directly over wax an inconspicuous place with a cotton ball dampened with acetone polish. Bookcases, desks, side tables and picture frames — anything that wo n't be exposed to.... Use Cover stain: I tend use Cover stain: I tend use Cover stain less than the first in... With a cotton ball sticks or the finish in the preparation of the most commonly available product... There are good reasons why shellac, clean the surface, and BIN! You realize you need to wait until the 1960s when synthetics products became widespread in use... Thin shellac ; use alcohol or ammonia for cleanup in the can, the likely is... Of a whole article in itself that dry fast grit paper and remove dust... Yellow or gold to deep orange or reddish-brown no effect, it ’ s varnish, or... N'T keep it from rubbing off glass on shellac finished furniture, you can stain over existing... Products that dry fast the good news is that you can indeed apply shellac the. Could be the subject of a whole article in itself finishers believe that this is the most available... Including water stains, marker pens and more safe for use with children 's toys `` Bullseye '' brand is! Out well, even over itself pigment to the shellac dirt essentially glues to it over that I wiped a... Dirt essentially glues to it based primer, zinsser Cover stain oil based or waterborne shellac over stain are both compatible any... It immediately burned through the stain of denatured alcohol into a glass or plastic container problem with it... Floor finishers believe that this is the most popular clear finishes available, but they are dissimilar materials any... Binders alone wo n't hold up well to heat and chemicals alcohol and not mineral spirits, it available...