Cleaning and repairing the Shellac clear coat on Vintage sewing machine heads
#361

ok, I'll see how it goes with the lighter fluid. I'm afraid of getting alcohol in contact with the decals, because I silvered part of the decals on the first machine I cleaned up that way-- an otherwise lovely Lotus. (Photos at the link- they don't seem to be posting at the moment.)
#362

Hey Glenn and Miriam! I posted this in another thread. Canada being the nanny country that it is has banned or made it extremely difficult to get a hold of denatured alcohol.
Options at this point seem to be:
I'm leaning toward the Everclear or the Lee Valley product. Do either of you have any suggestions or recommendations about this?
Options at this point seem to be:
- Methyl Alcohol - this is nasty stuff for the nervous system and I planned to do this inside so it's fairly undesirable especially since I have animals who come into this room. I've also read that it can penetrate gloves and standard breathing masks rendering them useless as protection.
- Everclear 190 proof ethanol - yeah, this isn't banned in the province I live in but denatured is. Go figure! Apparently this is highly regarded by violin makers and such?
- Lee Valley's Shellac and Lacquer thinner which is a blend of Ethanol and IsoButyl Alcohols and specifically mentions french polishing on the bottle
- Isopropyl Alcohol - I'm sure that I read somewhere in one of these threads that it's not suitable for this use but a lot of the people on the Canadian Woodworking site say they use it. The main reason it's not recommended seems to be water content? I have a bottle here that's 99%
- Marine Stove or Fireplace fuel - I've read that some of these are mainly ethanol.
I'm leaning toward the Everclear or the Lee Valley product. Do either of you have any suggestions or recommendations about this?
#365
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Join Date: Mar 2010
Location: Huntsville, AL
Posts: 2,609

The Lee Valley products work just fine and I have used them with no problems. Ever clear works just fine but in the south they drink it and would not think of wasting it on refinishing LOL. I use denatured alcohol because it is cheap here. Isoprop yl does have to much water and sometimes will cause cloudiness to the shellac finish if not careful.
#366



"190 proof Everclear (or equivalent brand) works even better than denatured. I've used it exclusively for french polishing and touchup varnish for years." - From http://www.maestronet.com/forum/inde...tured-alcohol/
and another discussion: http://marfioneguitars.com/french-po...using-alcohol/ - He loves even the 151 proof and has used Vodka too.
The Lee Valley products work just fine and I have used them with no problems. Ever clear works just fine but in the south they drink it and would not think of wasting it on refinishing LOL. I use denatured alcohol because it is cheap here. Isoprop yl does have to much water and sometimes will cause cloudiness to the shellac finish if not careful.
#367

OK, As I predicted, The Everclear was easy to find. The first liquor store we hit had it.
Without any basis for comparison, I think it did a great job. I've read where people say it's like working with butter or cream. I understand this statement now. I spent a lot of hours last night doing the cleaning stage with the alcohol and the linseed oil. This is because the finish on the 201 was poor. I mentioned in the other thread that it was almost like the gozilla finish but not. DH described it better - it's like someone threw a handful of sand in the final coat of the shellac. When I realized that with much elbow grease and liberal use of my very soft fingernails that I could remove the raised parts, I set about rectifying what was wrong with the finish so I spent a lot of time with the Everclear. (Locked the cats and dog out of the room for this step!)
[ATTACH=CONFIG]503966[/ATTACH]
This is after cleaning and before the first coat of Shellac.
Without any basis for comparison, I think it did a great job. I've read where people say it's like working with butter or cream. I understand this statement now. I spent a lot of hours last night doing the cleaning stage with the alcohol and the linseed oil. This is because the finish on the 201 was poor. I mentioned in the other thread that it was almost like the gozilla finish but not. DH described it better - it's like someone threw a handful of sand in the final coat of the shellac. When I realized that with much elbow grease and liberal use of my very soft fingernails that I could remove the raised parts, I set about rectifying what was wrong with the finish so I spent a lot of time with the Everclear. (Locked the cats and dog out of the room for this step!)
[ATTACH=CONFIG]503966[/ATTACH]
This is after cleaning and before the first coat of Shellac.
#370
Member
Join Date: Dec 2013
Location: Wichita Falls, TX
Posts: 22

I have been given my grandmother's Featherweight. It was only ever lightly used and sews like a charm. I would like to clean it and make the finish look nice. I'm not sure it needs a lot of work. Any suggestions? Thanks!
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[ATTACH=CONFIG]504011[/ATTACH][ATTACH=CONFIG]504012[/ATTACH][ATTACH=CONFIG]504013[/ATTACH][ATTACH=CONFIG]504014[/ATTACH]
Last edited by asgardner; 12-28-2014 at 10:22 PM.
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