Jump to content
Why become a member? ×

Stripping the Poly finish off for a re-fin, the easy way!


KiOgon
 Share

Recommended Posts

This came through from Stewart MacDonald in their newsletter & I thought it might be worth sharing ;-)
[url="http://www.stewmac.com/tradesecrets/ts0151_polystripping.hzml?utm_source=newsletter&utm_medium=email&utm_campaign=ts0151"]http://www.stewmac.com/tradesecrets/ts0151_polystripping.hzml?utm_source=newsletter&utm_medium=email&utm_campaign=ts0151[/url]

Link to comment
Share on other sites

Great Link! This is, indeed, how I do mine :) .
Both poly and nitro (I suppose impressively) is an absolute sod to get off any other way. However, the wood often burns before the covering bubbles so it needs to be done with great care - especially on the edges and in the cut-out curves. This is no great problem if it's going to be veneered or sprayed, but leads to considerable sanding for any natural or stained finish - the burn 'bruise' goes deep!

Link to comment
Share on other sites

[quote name='Andyjr1515' timestamp='1321002963' post='1434149']
Great Link! This is, indeed, how I do mine :) .
However, the wood often burns before the covering bubbles so it needs to be done with great care - especially on the edges and in the cut-out curves
[/quote]

I've posted what I think is a better way before and linked to several times but...the reason the heat gun burns the wood is it is TOO hot. It doesn't actually need to be that hot to soften the poly enough to scrape off with relative ease. I used a tresemme hairdryer on hottest setting to strip a thick MIM poly finish. Soft, easily scrapable but no bubbling, fumes or burn marks. Takes probably a little more patience but for the lack of mess and total lack of burns on the wood it's worth it.

That is my only useful contribution to the world of guitar building.

Link to comment
Share on other sites

[quote name='LawrenceH' timestamp='1321012151' post='1434314']
I've posted what I think is a better way before and linked to several times but...the reason the heat gun burns the wood is it is TOO hot. It doesn't actually need to be that hot to soften the poly enough to scrape off with relative ease. I used a tresemme hairdryer on hottest setting to strip a thick MIM poly finish. Soft, easily scrapable but no bubbling, fumes or burn marks. Takes probably a little more patience but for the lack of mess and total lack of burns on the wood it's worth it.

That is my only useful contribution to the world of guitar building.
[/quote]

But a very useful contribution nonetheless :)
I do agree, and this is a great tip - although it doesn't always cut the mustard. My heat-gun has a high and low setting - wherever possible I use the low and, as you rightly say, it often softens it enough to get the scraper under and rarely scorches the wood. But some finishes are just not touched by it and seem to need the city-lights-dimming-eco-system-destroying-mega-tega-bega-watt treatment :) . Whether that's nitro vs poly I can't be sure, I just know that serious heat is all that seems to work.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...