Sanding Last Coat Of Polyurethane Floor
Polyurethane is going to accentuate the surface inconsistencies so before applying the coating take pains to properly sand the surface you are sealing.
Sanding last coat of polyurethane floor. If there are stubborn nibs that stand up to the pads grab 280 grit and be more aggressive. Allow each coat to dry fully. After remove all dust and debris with. Because polyurethane creates a coat of polymer over the hardwood floor it will need an inter coat scratch minimum of one time during the process.
Sanding is an important part of this process. The polyurethane will sand easily so be careful not to sand through the thin coat and damage the stain or wood underneath. 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. Coat the entirety of your workpiece but don t brush excessively or you ll create areas with too little polyurethane.
It makes your wooden floor ready to apply polyurethane coating over it. I lightly sand between coats with extra fine synthetic sanding pads. This is standard practice with any wood finishing job and is nothing out of the ordinary. Rent or buy a medium size sanding machine to start the process.
Sand lightly with 240 grit sandpaper between coats then let the last coat dry for at least 24 hours. That said sanding bare wood beforehand to create a smooth foundation is key. To give the subsequent poly layers something to bond to sand lightly between coats with 320 grit sandpaper wrapped around a hard block. Sanding down the wood floor.
Remove the sanding dust first with. The goal is to roughen the surface a bit and rub out dust motes hairs and drips. And now you ll have to sand the entire floor with 220 grit sand paper and clean all the dust up. Sucks to be you.
After the first coat has fully dried according to the manufacturer s directions lightly sand the entire surface again parallel to the grain using 320 grit sandpaper. If you are going to use polyurethane in a large area it is advisable to sand the floor with rough sandpaper. Sand the dried and cured first coat of polyurethane no sooner than 24 hours after applying it.