|Forum topic by daruco||posted 08-18-2010 09:05 PM||8557 views||0 times favorited||15 replies|
08-18-2010 09:05 PM
I’m making a humidor. i’m using walnut for the exterior, but will be lining the interior with 3/8 spanish cedar (which is necessary to maintain the humidity needed to preserve the cigars). to do its job, the cedar will be sanded but cannot be sealed or otherwise finished. But, I’m thinking that the interior sides of the walnut should be protected because, presumably, some of the moisture will seep through the cedar. i am concerned that the difference in humidity between the inside and the outside of the box will cause warping of the walnut.
I typically use a simple, danish oil + wax finish for walnut, and am thinking of doing the same here. given its purpose, the exterior surfaces of the humidor should not be exposed to water and so I don’t think it will need great deal of protection; and, I just like the natural, non-gloss look of the oil/wax finish.
My question is this. If I put on six coats of poly on the interior walls of the walnut in order to protect the inside from the humidity, will that cause the wood to warp if the exterior of the box is not similarly coated? In other words, do the inner and outer walls of the walnut need the same number of layers of poly? If the interior is completely sealed off, and the exterior is not, will that cause problems. I’m thinking yes. Can I get away with NOT applying poly to the inside? Am I simply stuck with needing to apply the same number of coats of poly to the interior walls of the walnut?
Two other issues: I don’t want the interior to “smell” after it has cured. Nobody likes to smoke a poly-scented cigar. Second, I intend to glue the cedar to the interior walls of the walnut; if there are too many coats of poly on the walnut, will the glue hold?
-- dave : vermont