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How do you prevent chalky finish on pine floor knots?

Posted by dora_2008 (My Page) on
Thu, Jan 31, 08 at 8:34

Planning to start installing a new knotty pine floor, wide planks - 748 sq ft of it.....I plan to use a stain and shellac all in one product. The stain color will be an antique walnut.Recently my brother did the same thing however, I notice now that the knots have taken on a chalky finish which is very noticeable, especially when looking at it from a distance. How do I aviod that? And since I have such a large area to do should I stain the entire area all at once or work in sections? I am afraid of getting an uneven tone. Thanks

Follow-Up Postings:

RE: How do you prevent chalky finish on pine floor knots?

Shellac is not a very durable finish for a floor.
It will have white spots the first time damp shoes walk across it, and wear badly in traffic areas.

Almost ANY finish is more durable than shellac (except plain wax).

RE: How do you prevent chalky finish on pine floor knots?

Actually I may not be using the correct word (shellac). The company I am buying the wood from sells the stain as well and the stain is combined with a sealer whereby when you have scratches or worn spots you can just redo that area and not have to strip and redo. So what do you think is causing the whitish marks on the knots?

RE: How do you prevent chalky finish on pine floor knots?

In my opinion, a product that has color and finish in one is a bad choice. If it is scratched or worn off the bare wood shows and is difficult or impossible to touch up properly. You would do better to apply a stain followed by a finish coat.

White in the knots is usually caused by the topcoat being applied before the stain is adequately dried. I don't know what would cause it in a tinted finish.

RE: How do you prevent chalky finish on pine floor knots?

I now know the product that my brother used. It is a combination of Danish oil with 40% varnish. As far as the chalky finish on the knots, could this be because he did not condition first? I am hearing alot about the Waterlox product. Unfortunately I cannot find it in Quebec. Any suggestions as an alternative?

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