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Posted by Jeff Wisnia on June 13, 2006, 1:57 pm
Walter R. wrote:
> I have a couple of 2"x12"-15' facia boards. They get a lot of sun in summer
> and rain in winter. The wood has split in cracks as wide as 1/4". Since the
> boards were developing dry rot in the cracks I treated them with
> borax/antifreeze. Then I caulked them with flexible spackle compound.
>
> Trouble is, due to the constant expansion and contraction of the wood, the
> caulking is forced out of the cracks. I thought of applying some Bondo (or
> similar epoxy) to the cracks or to the entire boards.
>
> Will this work or will the Bondo pop out, too? Can I use some semi-liquid
> bondo and paint it on?
>
> The boards are difficult (expensive) to replace because they are tied in
> with the roof tiles.
>
> Thanks
>
I've used automotive type Bondo with good effect on lots of outdoor wood
cracks. It isn't all that great at water resistance, so you have to make
sure it's well painted.
Depending on the applicatin, sometimes I'm able to insert a few screws
or nails "inside" the cavity I'm filling so that the Bondo can grab onto
them and keep from popping out if it's adhesion to the wood isn't too good.
I've always used just the automotive Bondo, 'cause it's easy to buy at
local auto parts stores, but Bondo makes an s-load of home repair
products, some of which might be better for your application. See:
http://www.bondo-online.com/catalog_brand.asp?hdrBrand=2
Give it a try.
Jeff
--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
"Life is like a sewer -- what you get out of it depends on what you put
into it."
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