Sealing door?


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Old 08-24-17, 10:09 AM
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Sealing door?

So I have some mahogany solid wood doors that I was planning to stain but decided to leave the natural wood color as I like the look now. What would you guys recommend for protecting the door? Do I put a varnish on it or something similar? I don't necessarily want it super glossy looking. Thanks
 
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Old 08-24-17, 10:14 AM
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The outside of the door would need a spar poly/varnish. Raw wood generally needs 3 coats, sanding lightly between coats. Spar poly can be had in satin, semi-gloss or gloss.
 
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Old 08-24-17, 11:48 AM
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I like oil based polyurethane on the inside but it does add a little amber. Water based poly, while not my preference, would be more clear.
 
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Old 08-28-17, 11:43 AM
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Forgot to mention this is a interior door. For any of the suggested materials should the door be sanded first? Is so what grid should I use?

When using the spar poly what grid sand paper should be used in between coats? Can it also be used for interior?

Thanks

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Old 08-28-17, 11:50 AM
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Spar urethane outside only. a light sanding with 220 grit is always a good idea and essential between coats of poly.
 
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Old 08-28-17, 11:55 AM
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Spar is for exterior. For interior work, use regular polyurethane... oil or water based.

I would lightly sand bare wood with 150 grit with the grain, and you can wipe any dirty marks with denatured alcohol. The wood should all be the same color after you sand it, since your clear finish will highlight any color differences in areas that were sanded well vs areas not sanded well. Between coats use 220 grit and always sand with the grain. A sanding pad is also helpful if you have raised panels.
 
 

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