Polyurethane Floor Time Between Coats

The first coat should be mixed with mineral spirits.
Polyurethane floor time between coats. Then prep your floor by sanding and cleaning it. Oil based after the first coat has dried i typically wait 24 hours lightly sand the entire surface again with the grain with 320 grit sandpaper. Sucks to be you. And yet the next coat usually bonds well anyway especially if not a lot of time has gone by between coats.
Oil based polyurethane finishes are susceptible to brush marks and they take some time to dry which may subject your finish to bugs or dust. And now you ll have to sand the entire floor with 220 grit sand paper and clean all the dust up. Allow each coat to dry fully. Here s the way to approach sanding between coats.
No sanding required between coats. For floor projects use a square buff orbital or disk type sander with 220 grit sandpaper or the equivalent grit pad or screen specifically designed for sanding between coats. To give the subsequent poly layers something to bond to sand lightly between coats with 320 grit sandpaper wrapped around a hard block. And then read this post about how to refinish hardwood floors.
If you do have to sand between coats of polyurethane on floors because you didn t get to the second coat within the required time frame then that s a bummer. Superior durability for hardwood floors. Apply two to three additional coats of full strength polyurethane sanding between each coat. With a little time and effort your floor will have a smooth and flawless finish.
Do not use a belt or drum type sander for sanding between coats. Optimized drying technology results in faster recoat time between coats. How many coats of polyurethane are needed to achieve a beautiful finish. Coat the entirety of your workpiece but don t brush excessively or you ll create areas with too little polyurethane.
When applying polyurethane brush along the grain stretching the polyurethane into as thin a coat as. Polyurethane dries slowly so there are always dust nibs that should be sanded out before the next coat is applied. It takes a lot less dry time and fewer coats which makes it appealing to do it yourselfers. Minwax super fast drying polyurethane for floors is a clear oil based durable protective finish specifically formulated for use on hardwood floors.
There needs to be 3 coats of polyurethane applied especially if you are using an oil based finish.