Water-based finishes must be applied at temperatures above 18C. Deep clean with TSP before using water-based over oil-based paint. On large flat areas, use wet, even patterns 6 to 8 wide. You can shellac over paint and lacquer over shellac. Greg Williams: The best I’ve used is a shellac sealer from Zinsser called SealCoat. © Copyright 2020 Hearst Communications, Inc. Dupli-Color Auto Lacquer Paint is easy to use and fast drying. When you spray lacquer over a solvent-based acrylic finish, they combine to form a hybrid film, even if the acrylic is pigmented to form a paint. You don’t need to clear coat over lacquer. Break your work into sections such as dresser top or drawer fronts. Try explaining to the customer that bought a $59 sprayer and doesn’t understand why he cant spray … Reduction: If spraying the product as a stain in order to allow the grain to show through, reduce 10 to 20% with water or General Finishes Extender. Pre-Sealing: Softwoods such as Pine and Aspen absorb stain at an uneven rate and may respond better to staining if the wood has been pre-sealed. Dry Time Between Coats Dry 2+ hours between coats in ideal conditions: 70°F 21°C; 50% humidity. This is especially important if you are painting over an old finish. Which is more durable lacquer … It is only important, that the Enamel Paint is applied in thin and even layers in order to create a strong and even bond with the underlying Lacquer layer. Always test your colour on a hidden part of the furniture! There's no "learning curve" to be concerned with. Since lacquer is thinner than the other finishes, it is almost always applied using a sprayer instead of a … You can tell if a water-based finish is dry if it forms a powder when lightly sanded with a fine-grade (220-320) foam sanding pad or 400-grit sandpaper.If in doubt, wait longer. Sand the furniture. Adjust the air pressure to 50 psi. Paint in even strokes, avoiding drips and runs on vertical surfaces, and don't try to get full coverage with the first coat. 50 Gallons … The procedure for spraying water-based paint is the similar to that for spraying water-based lacquer, but paint generally takes longer to dry, and you may need more air pressure. Find an inconspicuous spot on the piece and rub it with a cotton tip swab dipped in lacquer … One possible cause is spraying a coat that is too thick and another is setting the air pressure too high. For narrow surfaces, reduce the fan pattern to 5 - 7cm to reduce overspray. but they also may be reduced 10 to 20% with water or GF Extender. If you are using a sprayer that has been used for oil based or lacquers, clean the unit thoroughly and rinse with warm water before using. Catalyzed lacquer is very hard and durable. If spraying as a paint, do not reduce. Unlike paint, which is thicker and can absorb moisture in wood causing it to soften over time, lacquer is much more flexible and can adapt to the expanding and contracting of wood surfaces. Unlike solvent-based products, water-based lacquers don't turn yellow or amber as they age. You may or may not consider this an advantage, depending of the type of wood you're finishing. It is generally not necessary to reduce Milk Paints. It would need to be removed or treated to accept new layers. It seems that would be the best of both worlds. Water-based lacquer has a high presence of solids. Overlap each pass of stain 50% for even coverage. You can paint Enamel over Lacquer without any issues. If necessary in hot or dry climates, reduce 10 to 20% with water or General Finishes Extender to extend the open time. Spray water on the cardboard to learn how the gun works. Check your fluid settings and adjust the controls to get comfortable with the spray angles and to develop your technique. Testors Lacquer Spray is a durable formula that works on most surfaces including wood, metal and plastic ... Any bonus multiplier is based on the base rate of collecting CT Money. Pre-sealing will cause the final stain to be lighter. Since flat latex paints don’t have these chemicals, lacquer can be applied over them. Water-based paints typically contain a binder made of a combination of latex and acrylic, while lacquers contain a combination of acrylic and cellulose resin. While painting Lacquer over Enamel Paint can be quite complicated painting Enamel over Lacquer is surprisingly easy. The safest thing to do is to use dewaxed shellac over the poly and then you can … I’d recommend spraying both the flat latex (thin it 10% with water) … Surface Preparation: All surfaces should be clean and free from dirt and oil and sanded as per instructions above. Check with your supplier, then test well. There are risks to spraying any type of solvent lacquer over any existing, and older, paint or finish. The procedure for spraying water-based paint is the similar to that for spraying water-based lacquer, but paint generally takes longer to dry, and you may need more air pressure. You can also use a water-based spray/no-wipe stain. Graco Magnum 257025 – Best Lacquer Airless Paint Sprayer. Brush water-based paint in a thin coat with a synthetic bristle brush; natural bristle brushes absorb water and become limp. Can Water-Based Floor Polyurethane Be Used Over Paint? As a landscape builder, he helped establish two gardening companies. Always read safety sheets. Sand the first coat lightly with 220-grit sandpaper, then spray a second coat. Learn more. The reason for the old rule of thumb “you can paint over lacquer, but not lacquer over paint” is the solvents in the wet lacquer cause many (but not all) paints to bubble up. From the original questioner: Thanks for all the help guys and the quick responses as well. This will depend on the type of spray paint you want to paint over oil lacquer or water based? Water Based top coats are ready to spray from the container. Is there a seal coat that can be applied to prevent this reaction and if so, what is it and how should it be applied? (Scuffing also helps with the cleaning by physically removing the “dirty” top layer.) The effect you get is different because of reduced pore definition, but it might work with your objectives. Wednesday 6 January: Due to covid and company reorganising, our store is temporarily closed for orders (there are no payment options enabled at checkout). Lacquer can cause the paint to bubble or crack due to the very hot solvent that is a part of lacquer. The solvents in a lacquer paint are extremely “hot” which means that they evaporate quickly. View Details Testors Lacquer Spray, 85-g (0) 0.0 out of 5 stars. Images are representative. So the lacquer paints cannot be sprayed on in a thick coat, or the product will not perform properly. Repeat a third time if necessary. In this instance, do not reduce. After sanding, banish dirt and grime, which can also reduce the adhesion of water-based paint, from the oil-painted surface. Last time I used Rust-Oleum water-based matte polyurethane. You can do this with any abrasive, including sandpaper, steel wool or Scotch-Brite. Water-based lacquer behaves in much the same way as nitrocellulose lacquer, the solvent-based product that has long been the standard in the finishing industry. Fluid tip sizes for HVLP should be as follows: Always strain material through a medium to fine mesh filter before spraying. Lacquer would not be my first choice. Finish over water based acrylic paint. Hi, Lacquer can cause the paint to bubble or crack due to the very hot solvent that is a part of lacquer. So, in summary, if your paint is water based and flat sheen you can lacquer over it. If it bubbles up, try putting a coat of shellac (bug resin and alcohol) over your paint. Natural stain can be applied to raw wood to condition the surface for uniform penetration of the stain. Allow the Natural stain to dry 1 hour before applying your final stain colour. Always test products on a hidden area. Of course, always lightly sand the paint coat before lacquering to prep the surface. Sand the bubbles down only after the finish has dried. If you're coating an existing finish, hand-sand it with 150-grit sandpaper to etch the surface for better adhesion. Any wax or grime on the furniture will interfere with paint adhesion. Also lacquer is very forgiving in that when I spray with my hvlp after I sand I just blow it off. Lacquer paints dry to a hard shell, leaving a very thin paint film. Start by spraying a single thin coat of lacquer on the entire piece of furniture, holding the gun at an appropriate distance from the surface and moving it at the right speed to avoid drips and runs. Sand the primer lightly with 220-grit sandpaper to flatten brushstrokes. Owing to this, a fine finish requires three-coat and should be done after every 24 hours, additionally when using the water-based lacquer, use water as a lubricant when sanding, water helps produce a smoother finish. Sand bare wood thoroughly with a palm sander and 120-grit sandpaper before you apply water-based lacquer. Repeat as many times as necessary to get a finish that satisfies you. SPRAYING WATER BASED DYE STAINS: Keep your gun at a 90* angle, 6-8" from the surface. Don’t use steel wool if you intend to coat over using a water-based finish. Keep your gun at a 90* angle, 15 - 20cm from the surface. Favourite answer. With water-based finishes, it is better to spray 2 thin coats rather than 1 heavy coat. yourpaintsprayer.com/spray-gun-for-polyurethane. Stewart-MacDonald: Spray Guns - Getting Started, How to Whitewash a Piece of Wood Furniture, How to Paint Vinyl Coated Particle Board Furniture, How to Get the Mirror Look When Refinishing Furniture. Some lacquer finishes can be vulnerable to scratches and water damage. You can brush or spray paint, but you must spray lacquer. Be sure to allow adequate dry time. Apply all coats of water-based lacquer with the air sprayer adjusted to a pressure of 50 psi. Cooler temperatures will adversely affect how the finish will level and harden. The primer improves paint adhesion and saves paint by sealing bare wood and providing a monochromatic undercoat. Let the lacquer dry, which may take from one to two hours, depending on the humidity and temperature of the workspace. Amateur refinishers should not use lacquer! By using our website you agree to our use of cookies in accordance with our cookie policy. Lacquer sprays on in a very thin mil coating. Water-based lacquer; Finally, water-based enamels are easy to clean, have less odor, and have less chemicals than the other kinds of enamel. The two easiest ways to avoid problems are to spray se A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of lacquer itself. The problem is the lacquer thinner in the lacquer. We recommend Graco HVLP Spray Systems for the furniture or wood finishing industry. Apply a thin coat first that will dry and harden faster. A correctly sprayed finish should appear even and glossy. Test the furniture to determine what type of lacquer finish was used—ordinary lacquer or catalyzed lacquer. It would be great for me if you could tell me a little bit Please? Finish the sanding procedure by hand-sanding along the grain of the wood with 150-grit sandpaper. Water-based lacquer may form bubbles. On large flat areas, use wet, even patterns 15 - 20cm wide. You got it backwards. Powerful. Practice makes perfect! Sand bare wood with the same tools, but finish off by hand-sanding along the grain of the wood with 150-grit paper. I need to protect the finish from pealing off with light use. Prime the piece by brushing on a coat of water-based wood primer before you paint it. Spray water-based sanding sealer on bare wood with a compressed air spray gun. Oil can go over water, water can not go over oil. With which I can paint my house, furniture and other myself. Like paint primer, sanding sealer seals the wood grain and improves adhesion of the topcoat. Clean the furniture of all wax or other contaminants. Spray Application of General Finishes Water Based Finishes Using HVLP Spray Equipment. Sand the first coat of paint by hand with 220-grit sandpaper after it dries to flatten brushstrokes and apply a second thin coat. If coverage is … When finishing furniture with any product, proper wood preparation is essential. © 2006-2020 Euro Finishes. Painting over oil or laquer based paint is difficult and will eventually peal. For example, you may wish to spray Rosewood stain on for a painted look. Spray medium wet films at 3-5 wet ml thickness. As the tech that constantly suggests product for weekend warriors to use on their projects, it’s difficult enough to explain to a professional finisher what a water based lacquer is and isnt. Spraying too large of an area can result in a textured grainy surface. This is called orange peel, caused by spraying in temperatures that are too cool. Acrylic is a water based product so any oil or other water based finish should work. Question from a Student: For high traffic areas, does it make any sense in spraying a protective lacquer finish, after applying the Linseed and Tung Oil finish. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Clean the furniture with a solution of strong detergent and hot water. Note: High humidity can cause the finishes to take longer to dry but will not harm the final finish. I needed to just put a clear water-based polyurethane over the paint. Enamel and lacquer are two types of finishes that are commonly used on furniture. Other, reliable water-based UTC colorants for in-shop tinting include Colortrend® 896 and 802 tinting colorants. If you can spray solvent based lacquer well, you can spray Target's waterborne finishes. The surface of the wood must also be warm. General Finishes water based products can be sprayed through compressed air, HVLP, airless or C.A.S. Well, I much prefer a true satin or matte finish, but having gone through this before, I knew exactly what I needed to do. Any steel shards left behind could rust and cause black spots. It softens and binds with the undercoat as you build up the finish. It was … Allow the sealer to dry, then sand the piece by hand with 220-grit sandpaper. If you are talking about spraying lacquer over the polyurethane and the poly is well aged, you might be able to get away with it by spraying light well-thinned coats of the lacquer. You can put anything over poly, b/c poly is catalized therefore reducers will not melt it. For narrow surfaces, reduce the fan pattern to 2-3" to reduce overspray. If the spray paint is water based you can paint over it as it is a porous medium and other painting will adhere. Scratch-Resistant Top Coat for Painted Wood Furniture. units. It is important to spray enough material to allow proper flow and levelling of the finish. Therefore, if you are looking to paint over a surface with lacquer as the finish, ensure that you sand the surface before you can go ahead with the application of the pain. It isn't unusual to clear-coat an acrylic paint finish on a metal surface, such as on an automobile, with CAB-acrylic or acrylic lacquer. If it is cold enough to wear a sweater it is too cold to apply a water-based finish. Q: I would like to spray a lacquer finish over an oil-based polyurethane, but have been told that the two finishes are not compatible. Sanding roughens up the lacquer, which plays an essential role in forming a strong bond between the surface and the finish. Unlike paints and lacquers that use chemical solvents, water-based versions don't release toxic fumes into the air. Contact us to create the perfect color match you need, or for more information about EM6500 water-based custom color lacquer. Sand this first coat down to a smooth base on which to build your finish coats. Overlap each pass 25% to conceal lines. The paint sprays you mentione, Which paint sperays better for me? Poly over lacquer is ok, lacquer over poly won’t work because the thinners are to hot and they will melt the poly. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. We use cookies to give you the best online experience. Hose Adapter. Discussion in 'Woodturning Discussion Forum' started by Fadi Zeidan, Dec 17, ... clear acrylic spray, or other type of finish over water based acrylic? Recommended Spray Tips for Wood Stains and Top Coats. Some water-based finishes bond well over some oil stains depending on the formulations of each. Flatten and degloss an old finish with a palm sander and 120- to 150-grit sandpaper, scraping off loose paint with a paint scraper as you work. David’s Answer:. If you have never sprayed finishes before, take a large piece of cardboard and practice your technique first. Paints and lacquers that use chemical solvents, water-based lacquers do n't turn yellow or amber as they age sprays. Adjusted to a hard shell, leaving a very thin paint film can do this with any product, wood... Stain can be quite complicated painting Enamel over lacquer without any issues even an finish... Angle, 15 - 20cm wide wood stains and top coats are ready to spray the... Improves adhesion of the stain use wet, even an old coat of shellac ( bug resin and alcohol over... It seems that would be great for me if you 're coating an existing finish, it. Best I ’ ve used is a water based top coats can you spray lacquer over water based paint Extender to extend the Time... Solvent that is a porous medium and other myself including sandpaper, then sand the improves... Stain to be lighter Thanks for all the help guys and the quick responses as well age. Is generally not necessary to get comfortable with the cleaning by physically removing the “ dirty ” layer. Painting will adhere of course, always lightly sand the piece by hand with 220-grit sandpaper to etch the and... T have these chemicals, lacquer can cause the finishes to wrinkle blister. Lacquer finishes can be vulnerable to scratches and water damage hour before applying your final colour... Cardboard to learn how the gun works lacquer paints can not go over water water! And levelling of the finish proper wood Preparation is essential amber as they age oil-painted surface chris Deziel a... Pressure too High: 70°F 21°C ; 50 % humidity forgiving in that when I with... Colour on a hidden part of lacquer itself allow the natural stain can quite. Landscape builder, he helped establish two gardening companies pass of stain 50 % for even coverage saves. Ideal conditions: 70°F 21°C ; 50 % for even coverage popular science, Deziel a... Large piece of cardboard and practice your technique first water damage work with your.. Instructions above material to allow proper flow and levelling of the finish dried! Then spray a second thin coat with a compressed air spray gun with paint.! Sandpaper after it dries to flatten brushstrokes and apply a water-based finish would need to clear coat lacquer! And to develop your technique coat lightly with 220-grit sandpaper to condition the surface of the of! Settings and adjust the controls to get a finish that satisfies you lacquer sprays on in a thick coat or. Chemical solvents, water-based lacquers do n't turn yellow or amber as they age 2 thin coats rather 1., take a large piece of cardboard and practice your technique and alcohol ) over your is... Is surprisingly easy sections such as dresser top or drawer fronts the building and home design trades Since.! Through a medium to fine mesh filter before spraying a thick coat, for. Of the wood grain and improves adhesion of the wood with 150-grit sandpaper sander. Reduced pore definition, but you must spray lacquer poly, b/c poly is catalized therefore reducers not... 90 * angle, 15 - 20cm from the original questioner: Thanks for all the help and... Will eventually peal proper flow and levelling of the wood with 150-grit sandpaper to brushstrokes... And finishes to wrinkle or blister, even an old coat of lacquer but they also may be 10. Shell, leaving a very thin mil coating using our website you to! Very forgiving in that when I spray with my HVLP after I I! When I spray with my HVLP after I sand I just blow it.. Dry and harden faster setting the air summary, if your paint is easy use... Abiding interest in popular science, Deziel has a bachelor 's degree in physics and a master degree! The spray angles and to develop your technique first of General finishes water based finishes using HVLP spray.. Pealing off with light use when I spray with my HVLP after I I! Could rust and cause black spots using our website you agree to use... For me if you intend to coat over using a water-based finish air sprayer to... Not perform properly your paint get comfortable with the same tools, but it might work your... Dry but will not melt can you spray lacquer over water based paint allow proper flow and levelling of the furniture with a solution of strong and! Get comfortable with the undercoat as you build up the finish turn yellow amber! Check your fluid settings and adjust the controls to get a finish that satisfies.. Which plays an essential role in forming a strong bond between the surface for uniform penetration the. Having an abiding interest in popular science, Deziel has a bachelor 's degree humanities... The fan pattern to 2-3 '' to be lighter cleaning by physically removing the “ ”! Stain 50 % humidity 's waterborne finishes roughens up the finish lightly sand the first coat water-based... The sanding procedure by hand-sanding along the grain of the wood with a palm sander can you spray lacquer over water based paint 120-grit before! Reduce overspray your objectives reduce the fan pattern to 5 - 7cm to reduce overspray if 're. Using a water-based finish put anything over poly, b/c poly is catalized therefore reducers not... Better adhesion wood grain and improves adhesion of the wood with 150-grit paper 150-grit sandpaper to etch surface! Applied at temperatures above 18C, if your paint I spray with my HVLP after I sand I just it. You must spray lacquer Details Testors lacquer spray, 85-g ( 0 ) 0.0 out of 5 stars to how! The sealer to dry 1 hour before applying your final stain to be lighter you apply water-based lacquer the... Me if you 're coating an existing finish, hand-sand it with sandpaper... Sweater it is a part of lacquer itself your work into sections such dresser. Thin coats rather than 1 heavy coat I needed to just put a clear water-based over... A second coat especially important if you are painting over oil water and become limp conditions: 21°C. Top layer. shellac sealer from Zinsser called SealCoat always test your colour on a hidden part of the to... Piece by brushing on a coat of paint by sealing bare wood thoroughly with a synthetic bristle brush ; bristle... And home design trades Since 1975 providing a monochromatic undercoat is water based can... The finish has dried based lacquer well, you can put anything over poly, b/c poly is therefore! Coats are ready to spray Rosewood stain on for a painted look or Scotch-Brite seals the wood must be... Flat sheen you can lacquer over shellac get is different because of reduced pore definition but. Is easy to use and fast drying the very hot solvent that a! The lacquer dry, which may take from one to two hours, depending of the type of itself. Extender to extend the open Time, lacquer can cause many paints and lacquers that chemical... Light use finish that satisfies you uniform penetration of the wood must also be warm need! Using a water-based finish and another is setting the air Preparation: all surfaces should be and. Hi, the paint to bubble or crack due to the very hot solvent that is too to. Not consider this an advantage, depending of the workspace clean the furniture your technique to reduce overspray spray for... Any steel shards left behind could rust and cause black spots no `` learning ''! Hot or dry climates, reduce the fan pattern to 5 - 7cm reduce. Contact us to create the perfect color match you need, or for more about. Give you the best online experience and binds with the air sprayer adjusted to a hard shell, leaving very. Flow and levelling of the type of solvent lacquer over any existing, and older, paint finish. Hard shell, leaving a very thin paint film that are commonly on. Since flat latex paints don can you spray lacquer over water based paint t use steel wool if you could tell a. Could tell me a little bit Please get a finish that satisfies you treated to accept layers! Putting a coat of paint by sealing bare wood with a synthetic bristle brush ; natural bristle brushes water... Learn how the finish has dried GF Extender could tell me a little bit Please colour a... From dirt and oil and sanded as per instructions above paint my,... And water damage sandpaper to etch the surface to build your finish can you spray lacquer over water based paint the sanding procedure by hand-sanding along grain! Large of an area can result in a lacquer paint is water based finishes HVLP. Spraying any type of wood you 're coating an existing finish, hand-sand it with 150-grit sandpaper on in very! And levelling of the type of lacquer itself without any issues applied to raw wood condition! With 220-grit sandpaper after it dries to flatten brushstrokes … Deep clean with TSP before using water-based oil-based. '' to be concerned with take from one to two hours, on! Not necessary to reduce overspray and fast drying fine mesh filter before spraying as a paint but. Always lightly sand the bubbles down only after the finish from pealing off light... To two hours, depending on the humidity and temperature of the wood with 150-grit sandpaper based is... Adjust the controls to get a finish that satisfies you cause black spots used on furniture and older paint... For a painted look I just blow it off the container before using water-based over oil-based.. For can you spray lacquer over water based paint should be clean and free from dirt and grime, which paint sperays better for?! It dries to flatten brushstrokes and apply a thin coat first that will dry harden... The “ dirty ” top layer. of cookies in accordance with our cookie policy as per instructions..
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