Poly on cast iron tops?

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Forum topic by islandstyle posted 01-06-2011 05:44 PM 1060 views 0 times favorited 4 replies Add to Favorites Watch
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21 posts in 2962 days

01-06-2011 05:44 PM

Topic tags/keywords: question tablesaw bandsaw

I recently cleaned up a two-man crosscut saw a friend gave me – i.e., made new handles, sanded off the rust and sprayed on some Polyurethane to prevent future rusting. I will hang it in my shop for display and conversation. The poly finish came out really nice and got me wondering if the same treatment can be used on my table saw and other cast iron tops to prevent rust? Anyone ever done that? Any reason not to? I currently apply wax after cleaning up my cast iron tops, but that requires occasional maintenance and re-application.

-- Michael D

4 replies so far

View Carl Webster's profile

Carl Webster

82 posts in 2827 days

#1 posted 01-06-2011 05:50 PM

I would think Polyurethane would wear and “crack” with saw usage. Then you would have the added problem of cleaning up the damage.

-- Carl in SC

View Bill White's profile

Bill White

4950 posts in 3989 days

#2 posted 01-06-2011 05:52 PM

I don’t use poly on anything, much less on my tools.


View IrreverentJack's profile


727 posts in 2872 days

#3 posted 01-06-2011 06:12 PM

I noticed this on Matthias Wandel's site. Seems like it is worth a try. -Jack

View HokieMojo's profile


2104 posts in 3757 days

#4 posted 01-06-2011 06:52 PM

some people put clear shellac spray on planes to prevent rust. I wouldn’t put it on a table saw, but that might be a better preservative for your saw than poly.

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