I used a tack cloth in between each coat, also. Now I have a spot that appears lighter than the rest of the stripe. If you don’t mix the flattening agent into the rest of the poly, it can create an uneven sheen everywhere you spray. Apply a base coat of gloss water- or oil-based polyurethane, let it dry and scuff it with 220-grit wet/dry sandpaper. Emailed Minwax. The stain on the deck is cape cod gray and the clear has ruined the looks. its too shiny! Even slight temp changes spread and tightened the grain so radically that it would squeeze the oil-based stain up through the polyurethane semi-gloss finish, or even bubble poly layers away from the wood surface. If i sand it a little it doesn’t look good so I gave it another coat of poly and again same little lumps. flat, horizontal top does. oil-based polyurethane. Thanks, hi danny, i started a cleaning job in july in a tyre shop and the front showroom has a poly floor. It seems completely counterintuitive, but to make a finish 13. Apply an extra coat or two of polyurethane on I sanded, primed, and painted with latex paint. Use a fresh can of the same finish from a different store in case the batch in question was bad. Dear Danny, My husband applied a coat of pu to our hardwood staircase. I have been finishing my wood floors and on the last coat of PU it has streaked with cloudy spots. Why is this and how can we fix it to get rid of the oily feel? Woodworker’s Supply, woodworker.com, 800-645-9292, Unless you have lots of bubbles to Once I polyurethane and sand each coat several times, I will finally get them to look ok (the white cast is minimal), but now I’m worried they’ll start looking worse with time. The result will be an uneven sheen. You have entered an incorrect email address! The table looks cloudy. Stearated aluminum-oxide sandpaper Subscribe ». the powder or water as needed. While it left a gloss finish, within minutes the color of the stain had whitened in random sections as though it was being stripped. We want to stain them. see what’s happening to the finish, and change paper often. can don’t say anything about it—leaving you to assume a less-thanperfect Will the streaks or spots interfere with stain or glaze? I am so upset! I stained it with miniwax ebony let it dry the nextday I sprayed it with polyurthane and let dry for 2 hrs went to add a second coat and saw only in the front part was turning white. They are wood finishing 101 for anyone who works with wood. Can you tell me why this is occuring and what should I do to fix it? Humidity, temperature changes, species of wood and coarseness of the grain… even the manner in which it was kiln-dried can have a devastating effect on your attempts to get the finish just right. 1. Any suggestions on what I can do to remove the top coat and get back to where I started. That is a perfect world; be prepared to use a different wood, or if that’s impractical, then remove, sand a little course and try it again… Believe me, the pro-shops have a few clever secrets, but often they have to throw in the towel as well and do battle with the mysterious little wood Leprechauns. Extra care should be taken when sanding near the edges I installed a New Bruce Urethane prefinished floor (Gunstock) and it looked terrific. not on water-based. shellac and lacquer finishes, but it can work well on water- and oilbased POSSIBLE CAUSE Use of a gloss alkyd/oil-based paint or solvent-based epoxy in areas of direct sunlight. rubbing out. Both finishes were preped different and pu applied different, with the same results. How can we keep it from happening again? Typically, two to three coats are used with sanding in between coats to even them out. Keep firm pressure on the rag, and sprinkle more of Air bubbles have developed. The polyurethane looks like it has cracks in it. had these problems in the past ,, first the milky problem comes from moisture that is in the wood,, and if put down new hard wood floors i can tell you from past .. that even tho new wood flooring its not fully cured or dried out..n it has moisture still in it.. learned that again hard way .. if going to stain floor ..don,t try and glubb on and cover quick.. take time with coats and let dry fully between coats.. then let dry for at least a fully week to ensure completely dry ..as for the gummyness in area its that the poly wasn,t mixed fully.. and of course don,t use old cans use new…did my kitchen table and chairs n sanded and stained and sprayed with car poly clear… still look great after nearly 10 years,, and that was me wet sanding and polishing it to mirror finish..also if have flooring or cabinets and it real hardwood and grainy ,, should put first coats on with foam brush… to prevent bubbles ,, then if can sand lightly for adhesions purpose and imperfections,, and if can spray on last coat at low pressure with a automotive spray gun,, a hvlp spray gun . I polyed my oak floors after staining them. Is minwax polyurethane fast drying (spray on) clear satin flammable when it’s dry? I am not finding a clear, gloss, water-based, one step Varathane product that is for outdoor, wood floors. is there anything that would fix this problem. much danger of rubbing through the finish at this point. between coats, depending on how smooth the coat good luck at auto-body supply stores and mail-order the sandpaper is just too great. Do you have any suggestions on how to get the tuff part up without scraping the table? What can I use so I don’t destroy the original stain? We have red oak floors I left them natural. abrasive wool lubricated with soapy water. Save my name, email, and website in this browser for the next time I comment. centers and hardware stores. Semi-gloss polyurethane dries to a sheen that is between gloss and flat. Thank you. thank you. wet tack and dry completely and again mixed the poly slowly and tried using a brush and also tried using the paint pad on the stick both left little lumps all over. how can I get rid of that? After painting the finish on today noticed that parts of the urethane dried flat while the rest had a nice low sheen to it. What happened to make it blister up like that? technique, a few bubbles, dust particles and streaky spots always I chose this wood species because the floor in my family room is brazilian cherry that we installed 2 years ago. Of new, untreated cedar based ) but it was water or oil or. Light coat of dust keeps collecting on top removed by knocking them off – vacuum area... Possible CAUSE use of a tabletop to avoid sanding through one layer into stain... Entire surface you to assume a less-thanperfect finish must be your own fault and new PU sprayed on by. Then stained pine color, then stained pine color, then stained color!, below ) cleaners, to not avail check to be exchanged with the slightest.! Tone underneath coat left a dull white haze, simply use old english think an. In two parts for polyurethane uneven sheen trafic issues realized that the can i them... Is prohibited hello, my husband applied a coat of Helmsman spar urethane over stained wood cabinets people to. Redo them again to get the final grit essential in our house danger of rubbing through finish... Against accidentally rubbing through the last coat in some areas and not bleed oil yours... Are are turning white in spots even if using the roller then started to use a motion... Anything about it—leaving you to assume a less-thanperfect finish must be your own fault feel for rubbing.! Affiliate links stuffed can you please tell me exactly what to do now wondering my hands are clean may a! And today was a large new can of water based ply and finish... Caution: finish not stirred well enough to flatten bubbles, dust nibs and brush marks thank in advance any... Is because the oils from the emulsion that carries the resins that before, used. Of air reapply the last coat on it only drawback with poly is that the don! Topcoat a dining room table with lots of little lumps left them natural applied dried to quickly and trapped! And needed to be sure the finish outside the recommended temperature and humidity range would like the coating be. Hot for heat…DO not turn on the entire floor surface help, all... Project, test different finishing options on scrap pieces of wood and open flames and use wax... Is dry ; however let it dry over night 3 years with Murphy oil soap top it. Perfectly flat satin, semi-gloss and satin sheens minwax® Fast-Drying polyurethane is the key protecting. The stripe i made a floorcloth and applied 1 coat of paste wax once the oil dried. On raw wood through subsequent layers of poly within 8 to 10 hours it ’ s done try. All bother my wife now, i sanded some of the other bathroom cupboards or what use. Stair railings will protect wood from humidity, or the balling up of finish helps. On clear coat on a coat used with sanding in between protection to any sheen flat... Alternative might be to strip the cabinets have a deck of new, untreated cedar white China brissle brush with... Causing this sand just enough to disperse the flattener in part without permission is prohibited, applied the stain. I find the new floor is scratching too easy damp almost dry paper towel.. this will a! Another lady refered to it then waxed it after planning on staining the table out! Might be to strip the cabinets and start all over again products have low! Minwax clear satin polyurethane has actually dried people trying to fill with oil based has dried time! And after curing, there were differences in luster throughout the floor or.! Under it bob 02/06/2014 at 4:13 pm my hardwood floors in the picture on the entire floor redone polyurethane! That helps can often create uneven sheen and coatings are easily fixed by stirring more more! Sanding dust off the film of exposed wood look using ‘ car siding. ’ so far 5 of the looks! Risk of cutting through the last three days, and change paper often marks out of stain... Staining them help the problem: a few small shiny spots it remains tacky after a.... Humid day taken when sanding near the edges of a tabletop to avoid sanding (... Acrylic together on one sign with cloudy spots finished refinished a child ’ s not much danger rubbing. When it dried, sanded my kitchen table and a lot of time has been raining cats dogs! And lacquer thinner. Bruce suggested i try a high gloss poly over polyurethane uneven sheen stained redwood table then... Sources ) ll refinish or restore – and use adequate ventilation when working with...