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Should you sand between coats of polyurethane?
The main reason to sand polyurethane between coats is to level dust nibs and other flaws, not to create a better bond. This is demonstrated here by the gloss remaining in the pores after sanding the surface. The next coat of finish still bonds in the pores even though the finish there is rarely scuffed.
What is the purpose of sanding between coats of polyurethane?
Apply the first coat of polyurethane, thinning it out with up to half of its volume of paint thinner. This will allow the finish to dry faster, so you can sand the surface sooner. Sand the dried and cured first coat of polyurethane no sooner than 24 hours after applying it.
How soon can you apply second coat of polyurethane?
Recoat within 2 hours. If unable to do so, wait a minimum of 72 hours, then lightly sand and recoat. Apply at least three coats on unfinished wood and two coats on surfaces already finished. After final coat, allow 24 hours before normal use.
How long should I wait in between coats of polyurethane?
Many brands advise buyers to plan on four to 12 hours of drying time between coats of stain and another 12 to 24 hours before applying the first coat of polyurethane.
How should I sand before the final coat of polyurethane?
Sand the wood down to as fine a surface as possible, using a power sander or sandpaper and working from 200-grit up to 320-grit sandpaper before applying stain and polyurethane. Wipe the surface with a tack cloth after the final sanding to remove any fine dust that may become trapped in the finish.
Do I have to sand in between poly coats?
You don’t have to sand between coats of poly as long as you get the next coat on within 12 hours – which means yes, sometimes you will be up at really strange hours coating yours floors with poly and your neighbors may wonder if you’re up to no good. *As a side note, this product did not receive rave reviews on Amazon.
Can I use finishing wax over polyurethane?
A more practical use for paste wax for today’s modern woodworker would be to use paste wax over an existing polyurethane, varnish, shellac or lacquer finish, to give a piece an unmatched luster and shine. The wax will not provide a great deal of top-coat protection, but the wax will fill in any cracks,…