When etching the surface, you can do this by hand, or you can also use a palm sander. You just need to make sure the oil is dried. Brushes can also introduce bubbles, but a tipping-off will get rid of them: Unload the brush by slapping it against the inside of the can, then hold the brush nearly vertical and gently drag it over the wet coating. But, I wouldn't use a polyurethane varnish due to … A lot of my work is on boats, and it’s not uncommon to apply polyurethane over epoxy resin surfaces. Discussion Starter • #1 • Jun 7, 2012. Don't expect the polyurethane to hide any defects in the material. Within 24 hours of applying the seal coat, brush on a coat of finish right from the can. you may be surprised by the resulting build up of polyurethane finish. Read on for another quiz question. Rent a power buffer and buy a fine (150-grit) screen. I have a dining table from the 1960s that is in pretty good shape with just a few minor blemishes on the top. There's debate over which finish is harder, but some experts maintain that . It had little round spots all over it that the polyurethane did not cover. If neither solvent affects the finish, it is polyurethane. polyurethane applied. I recently purchased a can of tinted polyurethane finish and applied it to the top of a desk. 2 steel wool or a dull 120- to 150-grit abrasive screen using a heavy floor buffer. Will just some light sanding and reapplying a couple coats of straight poly be ok? Water-based oil-modified polyurethane is a relatively new product that combines the durability of an oil base with the cleanup of a water base. Part 1 of 4: Prepping the Floor. I have heard countless times that you should never put polyurethane over waxed shellac. 2. Of course you need to test in a inconspicuous place to be sure. If you choose to paint over polyurethane without prepping, your paint is likely to peel right off. floor and not remove wood too... if you try you will  burn through to the Putting more varnish over old? How to Apply Polyurethane to an Old Oak Tabletop. Minwax says it’s OK, but the lady at the home improvement store said no. Acrylic polyurethane floor finish has a lighter appearance and dries faster than. Even if it has varnish on it, its so old, hard and dry you can get away with putting lacquer over it as long as you don't flood a wet coat on it. You do tend to see an increase in drying time, but contrary to many statement to the contrary online the oil will cure perfectly well under a coat of poly, because the varnish is not at all a perfect oxygen barrier.. Apply the First Coat of Polyurethane. Now I have always taken the “better safe than sorry” route, simply avoiding regular waxed shellac. Its looking a little dull and I want to "re-poly" it but not re-stain it. Brushes hold a lot of finish, so you can cover a wide area each time you load them up. guarantee that the floor has never been treated with something that will inhibit Within 24 hours of applying the seal coat, brush on a coat of finish right from the can. You can apply water-based polyurethane over oil-based as long as you set suitable conditions for this to happen effectively. Spread the varnish over the entire surface with long, even strokes. Never use wax, oil soap or acrylic floor dressings, such How to paint porcelain with acrylic paint. I have heard countless times that you should never put polyurethane over waxed shellac. You’ll get the best results from your topcoat if you remove any old paint, varnish or other finishes before polyurethane application. 1. Google Adsense Advertisement. For a smooth coating you’ll want the surface to be as smooth as possible, so prepare the wood by sanding it with a sanding block or orbital sander. It really depends on your preference, but if you’re wanting to apply polyurethane to a floor, it’s advised that you use a floor buffer with a 120-grit sanding screen. Its looking a little dull and I want to "re-poly" it but not re-stain it. You’ll have to prime, sand and use oil-based paint in order for your paint to stick to the finish of your wooden furniture. What Keith and Jason and Steve said are all correct. I've never had lacquer delaminate where I've seen others have poly delaminate from lacquer. grain direction. What kind of paint can I use to paint over veneer? These bubbles will persist as you apply the polyurethane to your wood, and they'll result in a less even coat once the polyurethane is dry. Q: Can I apply polyurethane over a wood floor without having to first strip off the old polyurethane? Is it OK to use a water-based polyurethane such as Minwax Polycrylic over an interior door surface that had previously been finished with oil-based? Research MinWax .com for options. In this post we’ll show you how to … Yes, you can use a paint roller to apply polyurethane. Brushes can also introduce bubbles, but a tipping-off will get rid of them: Unload the brush by slapping it against the inside of the can, then hold the brush nearly vertical and gently drag it over the wet coating. Use a light touch to avoid cutting through the finish and into the stained wood. It's a hard finish. coat of polyurethane in five to seven years. Spread the varnish over the entire surface with long, even strokes. 3. The question is can I go over this with a oil based polyurethane clear to finish the whole top, something like Cabots Cabathane Clear. The desk had previously been finished but the old finish was cracked and coming off so I had stripped and sanded the top before this new finish coat. The best method is have the floor I've read in a number of sources that poly will go over shellac and stick, but I wouldn't do it. How can I paint concrete pavers to look like Moroccan tile? Trust me, I've been there! Yes! Brush-on polys work best on flat surfaces where it's important to build up a durable film. Want to know what chalk paint and unicorn spit works. 20th Mar 2015, 07:21 PM #2. Refinishing old furniture is a great way to keep it out of the landfill and give it new life. ; Start with 120-grit sandpaper on refinished pieces and 80-grit on new wood. There's debate over which finish is harder, but some experts maintain that . with a blotchy-looking floor. Low-gloss polyurethanes are … First, lightly sand with No. If you like If the floor is sanded to the wood can be scratched. What's the best paint to use for kitchen cupboards? Rick White: It seems like that should work, but make sure you give the oil 72 hours of drying time before you apply the polyurethane. Every poly has its preferred applicator, typically a brush or cloth. From books to magazine articles to forums to DVD’s, the message is always the same. by Hal Rusche, 2nd of Heritage Hardwood Floors. Unfortunately, you can't just sand just the polyurethane off of a hardwood Painting over polyurethane furniture should be no big deal for this chalk paint, but you might want to consider sanding if it is a particularly glossy polyurethane . 4 answers William. First, lightly sand with No. Most clear finishes are available in gloss, semi-gloss and satin sheens. Answer: Answered. Could you please break the tie?-Mary. Bedroom Table- do I need to wax over chalk paint. If your floor looks good you need not coat it, if Applying one or two coats of polyurethane over paint would be a great move more than that would be futile. we will suggest they get some wear and tear out of the first two coats before six hundred years. Follow the directions for the product you are using. Can you stain engineered (and veneered) wood? 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