Have a damaged area, (really a gouge) in some T1-11 house siding that I'd
like to repair.
Perhaps 4" x 4" by a fair amount deep. Not sure what caused it as we just
moved in; possibly a squirrel, or woodpeckers, or... ?
It was suggested that I try Bondo.
Good idea, but frankly I hate working with the stuff.
Was wondering if anyone has any suggestions on any other patching material
I can try that would be as effective and permanent as a Bondo patch, but a
lot easier to work with ?
Are there any "permanent" type of caulks ?
Paintable RTV ?
There are several epoxy fill products that are quite a bit more
expensive but for such a small volume would not be prohibitively so.
Their advantage is longer open time.
Basically for a smooth, hard patch they're the only real type of
permanent choices afaik. Any of the other alternatives such as the
"hardrock" fillers aren't nearly as permanent.
I've used PC Woody products pretty extensively on the barn for siding
and other repairs...very similar to Abatron but less expensive. There
are a multitude of them and for such a small area you can probably find
something in the local home center. I don't recall a specific brand
name, but there are several varieties of the "two cardboard tubes" mixes
that should work just fine. In all the various ones I've used over the
years, I don't think there's a nickel's worth of difference between any
of them in actual performance for anything other than a truly structural
member that needs the strength and a surface patch doesn't fall into
Here's a link to the PC Products info for PC Woody product...
If you are going to use epoxy, then check out a product similar to
For a hole that size, you need the epoxy to be in a paste consistency,
or it will just run out. But automotive bondo, I would not use, because
with the weather and the expansion and contraction of the wood, it will
most likely fall out.
Here is what we used for a larger project on 30 year old cedar siding:
But mind you, the above product is a bit runny, so if the hole is deep,
make a plug the size of the diameter of the hole and screw it in. Then
seal over top and around it with the Lepage product. Or do the same
with the epoxy paste.
I have used bondo on wood before where the damage was just nicks and
scrapes and it worked well after it was primed and painted and sealed.
But on a bigger hole, I think it will fall out eventually.
I don't see why it should be any more prone than the epoxies--it'll stay
in thin surface patches on metal almost indefinitely which is much less
rough a surface than the wood surface. I've had no problems on the barn
patches although it hasn't been a long period of time so far.
Interestingly enough, Minwax sells a "two-part wood filler" that turns
out to be simply Bondo based on a comparison of the MSDS (at 3x the
What's hard about Bondo? Sands easy...
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