And I did freak out because " Why the hell the Minwax polyurethane won't dry? After 24 hours : you can walk on the floors without shoes. Instead, put on some socks if you have to step across the area.
After two weeks : you can let your pets cats and dogs running around. If you cannot keep your animal companions away, cover their paws with doggie socks. After 24 hours , you can walk with shoes on the surface. Keep your pets away. Otherwise, their claws may ruin the perfect coat. After one week , dogs are allowed to walk on the surface. You can spread the rugs on the surface after one month.
After staining, you have to wait for an extended enough period before applying the finishing coats. The ideal temperature for the stain to dry is from 75 to degrees Fahrenheit. The cooler temperature may slow down the drying speed. Besides, higher humidity in the air will make the period lasts longer.
Most stain brands require users to wait 12 to 24 hours before adding the polyurethane finish. However, to ensure the best results, you should let the interval last from 24 to 48 hours , especially when the environmental factors are not ideal. In short, you have to wait more than 24 hours before applying the first coat of polyurethane. Each finish coat should stay still for at least 6 hours before putting on a new one. If the stain is still sticky after 12 hours , you may have to remove it.
To get rid of the excess stain, apply another coat and let it soak for some minute, then wipe the surface. The move will leave only the penetrated stain. Now you can let it dry and apply the polyurethane. If all the stain is removed after wiping, you should consider re-sanding the surface. Most of the time when the situation happens, it occurs on the first coat. Apart from mahogany, exotic woods the term that often refers to the woods from the jungle , usually has a very oily resin.
You can feel the oiliness by touch the deck. Polyurethane, however, contains a mineral-spirits solvent that can dissolve the resin.
So, when you apply the lacquer on the wooden board, the substances mix and prevent the finish coat from drying.
The ultimate solution to the kind of wood is using naphtha, acetone, or lacquer thinner to wipe off the oil on the surface before applying polyurethane.
Or, you may use shellac to seal the resin inside the wood. If you have made a mistake: putting the finish on without getting rid of or dealing with the oil, you can try using heat from a lamp or a fryer to speed up the drying process. Just like the way we do with other tasks in woodworking, dealing with the problem need patience and a lot of care.
I stripped my table top, wiped with ms after sanding, used stain Minwax, whipped off excess, then whipped well with mineral spirits. Now 36 hrs later the poly is blotchy and tacky. You may have to strip off the polyurethane with a strong solvent such as lacquer thinner or acetone, or with paint stripper, and start over.
Before applying polyurethane to an oily exotic wood, wipe over the surface with naphtha, lacquer thinner or acetone to remove the oiliness. Then apply the polyurethane right after the solvent dries. Shellac will usually dry well on exotic woods. If you have applied an oil to the wood, let it dry completely before applying the polyurethane.
Wash the wood with a wax-removing detergent after you've stripped the old varnish, sand it and apply a fresh coat. If the wood has been cleaned with a silicone-based cleaner or waxed with silicone, the varnish might not ever completely harden, even if you strip it and clean the wood. You may have more luck with a penetrating oil. If you have to strip the old varnish and recoat, add a drying agent, such as Japan drier, to the new varnish.
Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since As a landscape builder, he helped establish two gardening companies.
By Chris Deziel Updated December 27,
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