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| Shellac questions http://www-.luthiersforum.com/forum/viewtopic.php?f=10102&t=11512 |
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| Author: | Chris Cordle [ Thu Apr 05, 2007 2:41 am ] |
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After my burn through during buffing I decided to abandon the Colortone brushing varnish. I sanded down the top and applied several coats of shellac to the top. I am quite enamored with the look of the top with just the shellac. I searched the archive and have spent a few hours trying to research my questions before posting a new topic on something that may have already been covered previously. Everything I found generally was in reference to french polishing or as a sealer coat. My questions are: 1. Can I just level sand this shellac and buff it out? 2. If so, what is the time period I should wait before level sanding and proceeding to buffing it out? 3. What is a compound you'd suggest in polishing this up at the end? I see Meguiars #7 listed for FP but not sure if this is the same scenario. On hand I have colortone's coarse, medium, fine and swirl remover compounds. Are any of these useable? I was considering a level sand and then hand polishing with micro mesh, going through all the different grits then letting it cure a bit longer before a final buff. Am I on the right track here? |
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| Author: | crazymanmichael [ Thu Apr 05, 2007 5:00 am ] |
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what you propose should work, proviced there is no residue from your previous buffing in the wood. i've not used the polishing composund you mention, but they should buff out your shellac just fine. you did not mention what sort of shellac you used, not specify how many coats you applied, nor over what time period. but when i've used shellac i like to wait a couple of weeks. that being said, it is generally accepted that if you can sand and get dry powder with no clogging of the paper it is safe to procede through the final buffing/polishing steps. |
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| Author: | Chris Cordle [ Thu Apr 05, 2007 5:06 am ] |
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[QUOTE=crazymanmichael] you did not mention what sort of shellac you used, not specify how many coats you applied, nor over what time period. [/QUOTE] Thanks Michael for your advice. To answer your questions I used Zissner Traditional Shellac in aeresol form, 6 coats over the period of an evening. |
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| Author: | crazymanmichael [ Thu Apr 05, 2007 5:48 am ] |
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you may have problems. i don't know whether that product is dewaxed or not. it may not harden off for awhile. |
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| Author: | Chris Cordle [ Thu Apr 05, 2007 5:56 am ] |
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[QUOTE=crazymanmichael] you may have problems. i don't know whether that product is dewaxed or not. it may not harden off for awhile.[/QUOTE] The product states it is wax-free |
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| Author: | Mike Collins [ Thu Apr 05, 2007 6:18 am ] |
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Chris-let it set up (dry) for a week ! can shellac is loaded with thinner to make it spray well. It will shrink quite a bit. The level carefully with 320 or 400 with water ! Yes water. dry the finish off and look for low spots and dings. if you find none then either pad shellac & oil on to bring out the gloss or spray thin coats to get a gloss. It can be buffed but must be cured first ! Can stuff takes longer. Mike |
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