So I have been making a few extensions out of different woods lately and have been having massive issues with finishing them. On some woods, for example Purpleheart and brown ebony every clear coat I have tried leaves small white imperfections on the clearcoat. As if the clear coat doesnt take on at all at the bottom of the woods grain 
I store my woods in a dry and warm room and my process goes like this:
I turn the pieces to desired diameter, sand smooth with 400, 600, 1200, 1500, 2000 and then blow the part clean with compressed air. Then wipe down with degreaser (have tried aceton aswell) to make sure the surface is clean. Then blow clean once more and then apply the clearcoat. I have been tying to find a finish that can be applied by a brush rather than a spray gun as the ventilation is near nonexistant in my workshop and I have found an ecxellent product that is made for finishing fishinh lures. It leaves a really tough and clear finish that can be sanded and polished to a good finish but it doesnt seem to work on all species of wood. Maple, bocote and cocobolo come out perfect every time but other species of wood seem to be more difficult :frown: What am I doing wrong? I have tried different products aswell, from water based to oilbased, thinned down and so on but nothing has worked so far.
Do I need some sort of sealing agent in between the wood and clear coat or what
Here is a picture of the white spots:
I store my woods in a dry and warm room and my process goes like this:
I turn the pieces to desired diameter, sand smooth with 400, 600, 1200, 1500, 2000 and then blow the part clean with compressed air. Then wipe down with degreaser (have tried aceton aswell) to make sure the surface is clean. Then blow clean once more and then apply the clearcoat. I have been tying to find a finish that can be applied by a brush rather than a spray gun as the ventilation is near nonexistant in my workshop and I have found an ecxellent product that is made for finishing fishinh lures. It leaves a really tough and clear finish that can be sanded and polished to a good finish but it doesnt seem to work on all species of wood. Maple, bocote and cocobolo come out perfect every time but other species of wood seem to be more difficult :frown: What am I doing wrong? I have tried different products aswell, from water based to oilbased, thinned down and so on but nothing has worked so far.
Do I need some sort of sealing agent in between the wood and clear coat or what
Here is a picture of the white spots:
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