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wipe on poly, question!

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Forum topic by dakremer posted 07-27-2010 06:31 AM 2555 views 0 times favorited 13 replies Add to Favorites Watch
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dakremer

2583 posts in 2551 days


07-27-2010 06:31 AM

Topic tags/keywords: wipe on poly ukulele restore

I am restoring a 100+ year old ukulele that was sitting up in my parents attic for god knows how long. It has no sentimental value, but I actually play the ukulele so thought I’d be a nice addition. I sanded it down as best I could. It has a lot of stress fractures in the wood – not sure if thats the correct term – but it looks really dried and wrinkles (tiny cracks) all over it. I could not sand them out, so left them – hoping a shiny finish might mask it a little…probably not though

after I sanded to 600 grit…i started applying coats of wipe-on-poly (cause its what i had around, and didnt want to spend any money on this thing). I am going to end up with about 10+ coats when its all said and done. Can you “finish your finish” with pumice and rottenstone on a wipe on poly? I want a very high gloss instrument finish. Thanks a lot

Photobucket

-- Hey you dang woodchucks, quit chucking my wood!!!!


13 replies so far

View yarydoc's profile

yarydoc

417 posts in 2604 days


#1 posted 07-27-2010 08:03 AM

You might want to check this out http://www.youtube.com/watch?v=h9RpvADRzp8
Its on the Beal Wood Buff System. I have one of these that I have used for about two years and it works great.

-- Ray , Florence Alabama

View vicrider's profile

vicrider

179 posts in 2358 days


#2 posted 07-27-2010 08:33 AM

Hi dakremer,

That looks like a nice Uke; well worth refurbing. If you have built up a nice coat of finish, I am sure you can rub it out. For best results allow it to cure out before polishing.

-- vicrider

View wseand's profile

wseand

2754 posts in 2501 days


#3 posted 07-27-2010 08:54 AM

Lee Valley has a descent instruction on using both.. HERE

-- Bill - "Freedom flies in your heart like an Eagle" Audie Murphy

View dakremer's profile

dakremer

2583 posts in 2551 days


#4 posted 07-27-2010 02:18 PM

most sites say to use pumice and rottenstone on lacquer and shellac finishes…I cant find anything that says to use it over poly – so just curious if it’ll give it the same effect

-- Hey you dang woodchucks, quit chucking my wood!!!!

View CharlieM1958's profile

CharlieM1958

16241 posts in 3678 days


#5 posted 07-27-2010 02:38 PM

Absolutely you can. I do it often.

-- Charlie M. "Woodworking - patience = firewood"

View RogerBean's profile

RogerBean

1602 posts in 2413 days


#6 posted 07-27-2010 02:39 PM

You can polish just about any finish so long as you have a base of finish to work with. But it has to be really dry (hard) first. I would think that the new automotive polishing compounds would be much more consistent, and easier to use either by hand or power. They range from the orange rubbing compound down to super fine 10,000 or higher grit. Cut finish back with 800 to 1200 paper on block to dead flat. Polish first with orange. Then one or two more steps with finer.

I have both pumice and rottenstone, but have never felt compelled to use them with all the much superior choices available at the auto body supply store.

Good luck with the uke.
Roger

-- "Everybody makes mistakes. A craftsman always fixes them." (Monty Kennedy, "The Checkering and Carving of Gunstocks", 1952)

View CharlieM1958's profile

CharlieM1958

16241 posts in 3678 days


#7 posted 07-27-2010 03:37 PM

Roger, I’m going to have to try that automotive stuff… I’ve been doing it the old-fashioned way.

-- Charlie M. "Woodworking - patience = firewood"

View PurpLev's profile

PurpLev

8523 posts in 3108 days


#8 posted 07-27-2010 03:52 PM

yes you can, only difference is that poly will take more work to buff than lacquer and shellac – but it can be buffed just the same.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View fussy's profile

fussy

980 posts in 2510 days


#9 posted 07-28-2010 04:14 AM

Roger is on it. Look at Popular Woodworking, Wood, and Fine wOODWORKING sites for info on using automotive polishes. McGuir’s (sp?) is highly recomended.

Steve

-- Steve in KY. 44 years so far with my lovely bride. Think I'll keep her.

View Chinitorama's profile

Chinitorama

105 posts in 2758 days


#10 posted 07-28-2010 06:56 AM

Turtle Wax swirl remover works on wiping poly too. Results looked good to me.

-J.

View tdv's profile

tdv

1139 posts in 2529 days


#11 posted 07-28-2010 01:44 PM

Being a guitar player I can appreciate the quality of this instrument it looks like it once cost someone a lot of money, abalone inlay didn’t come cheap when that was made. My only observation is that the finest instruments are usually finished with a very thin lacquer to retain the resonance of the soundboard & if you apply to much finish ,or too thickly it will numb the natural resonance. Sanding sealer & a couple of coats of nitro celluose spray would be better it will also buff up to a good gloss. The thing is you can’t put onto poly it will melt, it would have to be removed first, but I think the instrument warrants the effort
Best
Trevor

-- God created wood that we may create. Trevor East Yorkshire UK

View Rick  Dennington's profile

Rick Dennington

5170 posts in 2654 days


#12 posted 07-28-2010 04:13 PM

Greetings,

I use to build guitars years ago, and also been playing instruments all my life, especially the old vintage
Martins…... All I can say that is if you intended to play this instrument, you have ruined the sound with
all the coats of poly you have (will) put on it….Poly is not made to be put on an instrument of any kind.
But…. if you just wanted to make the instrument LOOK good, it’ll do that alright. The ONLY finish that should go on an instrument is nitrocelluose, so it will have a dead sound now…..As far as the small cracks in the body of the uke, you could have used “cleats” to stop it from cracking more… just my observation, no critizium.

-- At my age, an "all--nighter" is not having to get up and pee...!!!

View Bill White's profile

Bill White

4448 posts in 3420 days


#13 posted 07-28-2010 04:29 PM

Poly should be used on bar tops and barns. (Wanna know how I REALLY feel?)
Bill

-- bill@magraphics.us

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