eval(ez_write_tag([[336,280],'woodcritique_com-box-4','ezslot_7',109,'0','0'])); Thickness and Hardness: Oil-based poly is thicker; it is also softer, a property that makes it easier to dent. You can also apply multiple coats of the same stain, making sure to wait until the previous coat has dried. The process I am using is I sand the plywood with a random orbit sander and 150 grit paper, apply the stain pretty heavily, allow it to dry for a time, and then wipe it off with a clean rag. A 120 grit sandpaper does a great job of … I put on 3 thin coats, of course this worked out to 6 coats since I had to do the bottom and then the top, attached the handles and am very pleased with the finished tray. Can you apply water-based polyurethane over oil-based? The oil-based and the water-based one. Before you apply your water-based polyurethane over oil-based, ensure that the surface is clean and contains no traces of grease or dirt. It was about floors, but I figured if it worked on floors that take so much abuse, it would work on my tray. Woodworking Myth: You should never put a water-based finish on top of an oil-based finish. It may increase it, because now you have created a sealed surface where the stain has no ability to bite in. This difference makes the water-based formula favorable when it comes to applications where retaining the original color of the surface is paramount. I am using an oil base stain on quarter sawn oak plywood. For oil based finishes, two days is generally enough time between coats. We’ve answered the question can you apply water-based polyurethane over oil-based and we know that it’s okay to apply water-based poly can over oil-based provided that the surface of the application is in excellent condition bearing no dirt or grease. On quarter-sawn oak, the dye really pops the flecks and rays. Cost: Cost is the significant difference between these two based and o amazing formulas. These two are durable and will preserve your wooden structures as long as it takes. Water-based polyurethanes don't match well with oil-based stains, so if you're applying over stain you'll want to "rough up" the stained surface slightly before applying your water-based polyurethane, using some synthetic steel wool. You should, by now, know that polyurethane is a protective finish that offers protection to the underneath surface from wear and tear. You can do the application using a sprayer or even a lint-free cotton clothing. You can also use. Allow final coat of stain to dry 8-24 hours (Dry time is affected by your ventilation, temperature, and relative humidity). There are oil stains, and there are Oil stains. 1.) I've got a cabinet which I'm scared to put the finish on for fear of the results. Allow the mineral spirits to evaporate/flash off the surface. It is appropriate that you remove all the traces of grease on the oil-based finish using the procedures highlighted earlier on in this article. You can as well use a vacuum cleaner, if you have one, to remove all the traces of dirt that remained after roughening. My cloth had picked up just a tiny amount of color so I thought it was okay to go ahead with the poly. Once the stain color is set and cured (passed the color-fast test), apply 3 coats of the Minwax Water Based Polyurethane per label directions. You may apply the Minwax Water Based Polyurethane over a fully cured Minwax Wood Finish Stain (oil-based). Water-based poly costs half the price of oil-based per square foot. This is common with water base coatings. This should prevent any stain from coming off. However, there is one thing that you need to have at the back of your mind before doing so. You can also use mineral spirits. There are two forms of polyurethane formulas that you can use for your wood finish. We have listed the necessary steps for you to get your job done.eval(ez_write_tag([[250,250],'woodcritique_com-medrectangle-4','ezslot_5',108,'0','0'])); Once you are through with your applications, allow it time to dry thoroughly, which usually takes up to 10 hours following application. NOTE: A lot of people tend to think that water-based poly does not last as long as its oil-based counterpart; it’s not entirely true. The poly went on over the oil based stain beautifully. Use the stain as it is designed. Again as suggested, I allowed it to “evaporate/flash” for a couple hours. Question Yes! Soon after cleaning your surface, follow it with deglossing. You can apply water-based polyurethane over oil-based as long as you set suitable conditions for this to happen effectively.eval(ez_write_tag([[300,250],'woodcritique_com-medrectangle-3','ezslot_0',107,'0','0'])); Ensure that you remove dirt, grease, and wax from the surface by scrubbing the surface using a wood cleaner or de-glosser. I did as the post suggested — I allowed the tray to dry overnight and then used a microfiber cloth to wipe it down with mineral spirits. These two products, whichever you choose will guarantee your wooden structure a much-improved look. I really like the poly and wanted to use the stain/poly combination on several pieces so I had to find out if it would work. Wipe down the stained surface using a soft, lint-free cloth dampened with 100% pure mineral spirits. Pros/Cons of Applying Water Based Polyurethane Over Oil Based, 10 Best Wood Chipper for Small Farm- Reviews & Buyer’s Guide, 10 Best Clear Finish for Exterior Wood Doors- Reviews & Buyer’s Guide, 10 Best Cordless Compound Miter Saw- Reviews & Buyer’s Guide. The Difference Between Water-Based Polyurethane and Oil-Based Polyurethane. You may apply the Minwax Water Based Polyurethane over a fully cured Minwax Wood Finish Stain (oil-based). However, they have significant differences between them. 2.) Wipe clean the finish using a tack rag. The pieces dry for about 3 days, but when I go to apply a water-based polyurethane the stain will pull off some sections of the plywood. The question is. Smell: Oil-based poly has a strong, pungent smell, whereas its water-based counterpart does not have any odor. Then apply a second coat in the opposite direct. From contributor M: The process I am using is I sand the plywood with a random orbit sander and 150 grit paper, apply the stain pretty heavily, allow it to dry for a time, and then wipe it off with a clean rag. Please use the following guidelines: To ensure the color fastness of Minwax Wood Finish prior to applying Minwax Water-Based Polyurethane: 1.) That's why you should always apply a barrier coat of dewaxed shellac to seal oil-based stain. You might want to first apply a coat or two of clear shellac. Tray after “flashing” with mineral spirits. Allow final coat of stain to dry 8-24 hours (Dry time is affected by your ventilation, temperature, and relative humidity). 3.) Another disadvantage of using water-based polyurethane over oil-based is the cost. Water-based polyurethane is, on the other hand, thinner but harder. June 28, 2005, KnowledgeBase: Finishing: General Wood Finishing. What’s important is ensuring the appropriate maintenance practice. There are no significant advantages or disadvantages of applying water-based polyurethane over oil-based. A water-based poly, therefore, can easily scratch. Forum Responses Use a detergent or a ball of synthetic wool to clean the surface of the finish if you suspect the presence of dirt or grease on it. I found a post on DoItYourself.com that supposedly came from Minwax. Water Based over Oil Based. You’ll find most oil stains should dry for at least 12 to 18 hours before going over the stain with any EMTECH water-based sealer or topcoat. I will continue to use this combination of water based poly over oil — I’ll report back if I run into any problems. Today, most wiping stains are listed as oil stains, and they do not use oil, they use an oily solvent. Another method that you might want to try is to wipe or brush in only one directions, instead of back and forth, then allow the coating to dry. Allow that to dry, and then you can apply your coatings in you regular method. The procedure for Applying Water Based Polyurethane Over Oil Based? There are water-based polyurethanes not suitable for application over lacquer or shellac. Dye does a great job on oak; you can get it as dark as you want and it will color the wood evenly (no blotching). The mineral spirits will remove any active/excess stain from surface and help the stain to cure out. Usually, you will find water-based polyurethane almost twice as expensive as the oil-based one. Pros explain, and suggest solutions. Feel free to follow this by applying the water-based polyurethane. Dust Collection, Safety and Plant Operation, Job Opportunities and Woodworking Services, Why does the top finish pull away from the stain coat?

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