How To Putty Plywood Floor

Birch plywood is extremely smooth with no surface voids visible grain or high sections.

How to putty plywood floor.

For a small plywood panel you can use a handheld rotary tool fitted with a 240 grit sanding disc but for a large. This makes the new flooring more secure and eliminates holes in the subfloor. Fill cracks in the plywood with the putty as well. This filler is fast drying gives off a lot of strong fumes and is flammable.

Sand the wood putty and wood surface of the plywood with fine grit sandpaper. Use a putty knife to apply a layer of wood putty over any nicks or nail holes in the plywood. Subfloor materials including plywood oriented strand board and to a lesser degree particleboard are fairly stable and any gaps that might develop between sheets are unlikely to widen. If there are gaps between the sheets of plywood fill them with the putty so the flooring is even and consistent.

If you fill the cracks the sub floor can buckle. Laying out and cutting the planks of plywood to the correct lengths not widths is the most difficult parts of this diy plywood flooring project. For that reason any subfloor filler you use does not have to be particularly elastic. Lacquer based wood floor filler is a mixture of lacquer and very fine wood dust.

To install plywood flooring you need the nails to sink into the joists and nowhere else. Patch any divots or imperfections in the plywood with the wood putty. Since movements downwards is usually restricted the buckles move upwards creating bulges in the floor. The next layer of filler to go down before the vinyl flooring is 1 4 inch birch plywood.

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