Will Sawmill Blade Lubricants Cause Trouble with Finishes?
From contributor C:
Oh! So that's what's been causing all those fisheyes in my finishes! Just kidding... No way that minor contamination makes it through the planing process. And the sanding is an extra safety net besides. My finishes are more likely to be impacted by the forklift driver's oily foot tracks, but I can handle them too. Relax and keep your saw cutting slick. I'd rather have a decent cut than avoid some miniscule oil droplets on the high spots of the wood (which will be planed away anyway).
From contributor J:
I have to agree with the above posts. Unless the lumber is getting drenched, I don't think it would be a problem. Most of my 4/4 rough comes in about an eighth inch strong. By the time I'm spraying a finished product, it's 7/8" or less. That means an eighth inch of wood off of each side is in the dust collector, along with any oil drippings.
From contributor E:
There are a gazillion things that can cause finishing problems, especially fisheyes. At one of my accounts, we used to take a piece of maple veneer, white wood sand it and then spray it with sealer. The piece would be sectioned off and we would test various products to see if they would cause fisheyes. These products would be deodorants, hand creams, suntan lotions and various other skin care products. The section used then would be sealer sanded and the product applied directly to the part and then top-coated. If it caused fisheyes, that product would not be allowed to be used by the employee or in the plant. I found this a very useful tool in not only this customer's facility, but a lot of other accounts I called on. This list was used and updated constantly. You can test any product with this method.
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