I recently completed a mobile base for the BT3100 and also built some matching cabinets for the shop. They are 3/4 inch MDF with poplar trim on the edges and birch plywood drawer and door faces.
All went well until I coated the MDF with an oil-based polyurethane clear satin coating, which was just brushed on. Instead of getting that nice rich brown color (like Rod's) I ended up with a mottled finish (see pictures). One shows the top of a cabinet and the other shows the inside of a drawer built with MDF. Since all MDF surfaces will be out of sight, under something or the inside of a drawer, I am not too concerned about appearances at this time. And, admittedly, I was not overly careful about applying the finish to these surfaces -- I won't say smeared on, but. . .
However, in the future I may want to have MDF surfaces visible and need advice on proper finishing of the MDF so as to avoid the mottled appearance. I am also a little concerned that the finish may not adhere to the MDF as well as it should.
As always, suggestions and comments are most welcome.
Thanks, Steve
PS: I know those photos are making Rod and others cringe so I apologize in advance.
All went well until I coated the MDF with an oil-based polyurethane clear satin coating, which was just brushed on. Instead of getting that nice rich brown color (like Rod's) I ended up with a mottled finish (see pictures). One shows the top of a cabinet and the other shows the inside of a drawer built with MDF. Since all MDF surfaces will be out of sight, under something or the inside of a drawer, I am not too concerned about appearances at this time. And, admittedly, I was not overly careful about applying the finish to these surfaces -- I won't say smeared on, but. . .
However, in the future I may want to have MDF surfaces visible and need advice on proper finishing of the MDF so as to avoid the mottled appearance. I am also a little concerned that the finish may not adhere to the MDF as well as it should.
As always, suggestions and comments are most welcome.
Thanks, Steve
PS: I know those photos are making Rod and others cringe so I apologize in advance.
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