Polyurethane Over Lacquer Floor

Lacquer is made of solids suspended in an evaporative base.

Polyurethane over lacquer floor. Lacquer is a clear finish available in matte satin and gloss versions. Poly over lacquer is ok lacquer over poly won t work because the thinners are to hot and they will melt the poly. The solids are what seal the floor after the. Also don t use brushing lacquer.

Unlike polyurethane where you must sand the surface in order to apply a new coat lacquer is generally thin enough that a new coat can be sprayed over the surface without the need for this. Fast drying water based polyurethane and its newer water based oil modified cousin can be applied with a fine bristle brush foam roller spray or rag if applying over an oil based stain rough. Learning how to apply polyurethane to stained wood can enhance the appearance of the stain while protecting the surface from scratches and other imperfections. For instance there are polyurethane floor finishes one part air dry and yes they do reflow to a point at least.

Their appearance looks more natural and does. Shellac is thinned with alcohol which rarely causes blistering or wrinkling. Avoid using lacquer retarder even if this means waiting for drier or cooler weather. Alkyd varnishes are a polyester resin that will adhere better and repair more easily.

Water based oil modified polyurethane is a relatively new product that combines the durability of an oil base with the cleanup of a water base. Varnish vs lacquer vs polyurethane vs shellac for aspiring woodworkers choosing the right finish can seemingly be a difficult task at least at first. Instead use an alkyd varnish. Second polyurethane is not the best choice for painting over lacquer finishes.

This is because the most popular types of topcoats varnish lacquer polyurethane and shellac have advantages and disadvantages which makes them best suited for particular types of settings. There are all the spray brush polyurethane consumer grade finishes these will wrinkle with acetone and. If you are going to be coating exterior wood surfaces that won t be exposed to extreme heat fluctuations then polyurethane might be the better option. Polyurethane will not bond or grip well with the lacquer and will peel off over time with general use.

Apply a barrier coat of shellac between the existing surface and the coating containing lacquer thinner.