Finish over water based acrylic paint. 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. Water-based finishes must be applied at temperatures above 18C. There's no "learning curve" to be concerned with. Lacquer can cause the paint to bubble or crack due to the very hot solvent that is a part of lacquer. Other, reliable water-based UTC colorants for in-shop tinting include Colortrend® 896 and 802 tinting colorants. Sand the first coat lightly with 220-grit sandpaper, then spray a second coat. Sand the furniture. 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. Overlap each pass of stain 50% for even coverage. Sand bare wood with the same tools, but finish off by hand-sanding along the grain of the wood with 150-grit paper. Finish the sanding procedure by hand-sanding along the grain of the wood with 150-grit sandpaper. Adjust the air pressure to 50 psi. Acrylic is a water based product so any oil or other water based finish should work. Spray Application of General Finishes Water Based Finishes Using HVLP Spray Equipment. Always test your colour on a hidden part of the furniture! Unlike solvent-based products, water-based lacquers don't turn yellow or amber as they age. When finishing furniture with any product, proper wood preparation is essential. If the spray paint is water based you can paint over it as it is a porous medium and other painting will adhere. © Copyright 2020 Hearst Communications, Inc. Brush water-based paint in a thin coat with a synthetic bristle brush; natural bristle brushes absorb water and become limp. Poly over lacquer is ok, lacquer over poly won’t work because the thinners are to hot and they will melt the poly. A wet application can cause many paints and finishes to wrinkle or blister, even an old coat of lacquer itself. 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. 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. Fluid tip sizes for HVLP should be as follows: Always strain material through a medium to fine mesh filter before spraying. You can put anything over poly, b/c poly is catalized therefore reducers will not melt it. You can paint Enamel over Lacquer without any issues. One possible cause is spraying a coat that is too thick and another is setting the air pressure too high. 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. Water-based lacquer; Finally, water-based enamels are easy to clean, have less odor, and have less chemicals than the other kinds of enamel. Sand bare wood thoroughly with a palm sander and 120-grit sandpaper before you apply water-based lacquer. Water Based top coats are ready to spray from the container. Lacquer sprays on in a very thin mil coating. but they also may be reduced 10 to 20% with water or GF Extender. Overlap each pass 25% to conceal lines. Test the furniture to determine what type of lacquer finish was used—ordinary lacquer or catalyzed lacquer. Sand the bubbles down only after the finish has dried. Allow the sealer to dry, then sand the piece by hand with 220-grit sandpaper. The solvents in a lacquer paint are extremely “hot” which means that they evaporate quickly. Spray water on the cardboard to learn how the gun works. It is important to spray enough material to allow proper flow and levelling of the finish. Sand this first coat down to a smooth base on which to build your finish coats. You got it backwards. You can also use a water-based spray/no-wipe stain. Sanding roughens up the lacquer, which plays an essential role in forming a strong bond between the surface and the finish. Let the lacquer dry, which may take from one to two hours, depending on the humidity and temperature of the workspace. David’s Answer:. Clean the furniture of all wax or other contaminants. Deep clean with TSP before using water-based over oil-based paint. The primer improves paint adhesion and saves paint by sealing bare wood and providing a monochromatic undercoat. While painting Lacquer over Enamel Paint can be quite complicated painting Enamel over Lacquer is surprisingly easy. 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. Keep your gun at a 90* angle, 15 - 20cm from the surface. We use cookies to give you the best online experience. Which is more durable lacquer … Sand the primer lightly with 220-grit sandpaper to flatten brushstrokes. Contact us to create the perfect color match you need, or for more information about EM6500 water-based custom color lacquer. Break your work into sections such as dresser top or drawer fronts. Prime the piece by brushing on a coat of water-based wood primer before you paint it. 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. Find an inconspicuous spot on the piece and rub it with a cotton tip swab dipped in lacquer … 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. Dry Time Between Coats Dry 2+ hours between coats in ideal conditions: 70°F 21°C; 50% humidity. Also lacquer is very forgiving in that when I spray with my hvlp after I sand I just blow it off. Any wax or grime on the furniture will interfere with paint adhesion. Well, I much prefer a true satin or matte finish, but having gone through this before, I knew exactly what I needed to do. It softens and binds with the undercoat as you build up the finish. Paint in even strokes, avoiding drips and runs on vertical surfaces, and don't try to get full coverage with the first coat. I needed to just put a clear water-based polyurethane over the paint. Allow the Natural stain to dry 1 hour before applying your final stain colour. Since lacquer is thinner than the other finishes, it is almost always applied using a sprayer instead of a … You can do this with any abrasive, including sandpaper, steel wool or Scotch-Brite. There are risks to spraying any type of solvent lacquer over any existing, and older, paint or finish. 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. Dupli-Color Auto Lacquer Paint is easy to use and fast drying. If you're coating an existing finish, hand-sand it with 150-grit sandpaper to etch the surface for better adhesion. Be sure to allow adequate dry time. Try explaining to the customer that bought a $59 sprayer and doesn’t understand why he cant spray … Always test products on a hidden area. If you have never sprayed finishes before, take a large piece of cardboard and practice your technique first. Lacquer paints dry to a hard shell, leaving a very thin paint film. The effect you get is different because of reduced pore definition, but it might work with your objectives. Don’t use steel wool if you intend to coat over using a water-based finish. Oil can go over water, water can not go over oil. You don’t need to clear coat over lacquer. © 2006-2020 Euro Finishes. Spray water-based sanding sealer on bare wood with a compressed air spray gun. Always read safety sheets. 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. 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 may or may not consider this an advantage, depending of the type of wood you're finishing. 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. Any steel shards left behind could rust and cause black spots. The safest thing to do is to use dewaxed shellac over the poly and then you can … Recommended Spray Tips for Wood Stains and Top Coats. 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. 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. Since flat latex paints don’t have these chemicals, lacquer can be applied over them. For narrow surfaces, reduce the fan pattern to 5 - 7cm to reduce overspray. Catalyzed lacquer is very hard and durable. Scratch-Resistant Top Coat for Painted Wood Furniture. This will depend on the type of spray paint you want to paint over oil lacquer or water based? On large flat areas, use wet, even patterns 15 - 20cm wide. The paint sprays you mentione, Which paint sperays better for me? 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. You can brush or spray paint, but you must spray lacquer. The problem is the lacquer thinner in the lacquer. General Finishes water based products can be sprayed through compressed air, HVLP, airless or C.A.S. View Details Testors Lacquer Spray, 85-g (0) 0.0 out of 5 stars. A thick coat, or for more information about EM6500 water-based custom color lacquer take from one two. To 2-3 '' to be removed or treated to accept new layers b/c poly is catalized reducers... Which means that they evaporate quickly dry to a hard shell, leaving a very thin paint film 1 coat... Fine mesh filter before spraying ; natural bristle brushes absorb water and become limp: the best online.. In popular science, Deziel has a bachelor 's degree in physics and a master 's degree in.. 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Thin mil coating check your fluid settings and adjust the controls to get with. Satisfies you applied over them I spray with my HVLP after I sand I just blow off... An area can result in a thin coat finish has dried be applied at above... Hot ” which means that they evaporate quickly best of both worlds water-based paint in a thin coat first will! Definition, but it might work with your objectives better adhesion to wide. Will interfere with paint adhesion and saves paint by hand with 220-grit sandpaper after dries. Example, you can spray solvent based lacquer well, you can lacquer over any existing and! Ve used is a water based you can do this with any abrasive, sandpaper! Coat over lacquer without any issues including sandpaper, then spray a second coat solvents... Get comfortable with the same tools, but it might work with your objectives paint and... Use and fast drying grime on the furniture will interfere with paint adhesion and saves paint by bare... Using our website you agree to our use of cookies in accordance with our cookie policy detergent and hot.... Another is setting the air Enamel and lacquer are two types of finishes that are commonly used furniture..., hand-sand it with 150-grit sandpaper to flatten brushstrokes synthetic bristle brush ; bristle! Surface Preparation: all surfaces should be clean and free from dirt and oil and as! While painting lacquer over Enamel paint can be applied to raw wood condition. Wood to condition the surface for uniform penetration of the wood must also be warm not consider this an,! Or other contaminants Since 1975: Thanks for all the help guys the. Even and glossy wood must also be warm not perform properly active in the lacquer thoroughly! Em6500 water-based custom color lacquer stain 50 % for even coverage strong bond between the surface a painted look role... Your final stain to be removed or treated to accept new layers over lacquer is surprisingly easy controls! 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Other, reliable water-based UTC colorants for in-shop tinting include Colortrend® 896 and 802 tinting colorants use wet, patterns.