Can you spray clear coat over polyurethane?
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In this regard, can lacquer be sprayed over polyurethane?
Re: Stupid mistake - polyurethane and lacquer Poly over lacquer is ok, lacquer over poly won't work because the thinners are to hot and they will melt the poly. You got it backwards. You can put anything over poly, b/c poly is catalized therefore reducers will not melt it.
Likewise, can you coat polyurethane? Applying a Water-Based Polyurethane Apply a very thin coat of polyurethane with a fine brush, foam pad, or cloth. Work with the grain, and avoid applying too much polyurethane to avoid raising the grain. The initial coat should be dry within a couple of hours, and you can then apply a second coat.
Likewise, what is the difference between clear coat and polyurethane?
Polyurethane. Generally, these are oil based modified clear coats with polyurethane. These products are very tough and chemically resistant, but they have poor adhesion, dry slowly, and yellow a great deal over time.
How can you tell if lacquer or polyurethane?
Go to a small corner of the wood, and take a small knife or coin and try to scrape up a little bit. If it crumbles as you scrape it up then you can easily tell that you have a urethane/polyurethane finish. Lacquer. To know if you have a lacquer finish, just simply rub a little bit of denatured alcohol onto the wood.