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Old 08-31-2018, 05:05 PM   #2
Genecop
Senior Member
 
City: New York
Join Date: Nov 2015
Posts: 338
Mike, the problem with wood columns is well documented, because of that most every column we install these days are fiberglass, with Fypon base and cap..

When forced to use wood the initial coating and handling and install will set the tone for years to come....I won’t go into the long list but airflow, oil based primer to all raw surfaces and many other tricks will determine how well the wood columns hold up..

Also old growth woods which are unavailable today always performed better than today’s wood..

As far as your problem, yes your on the right track, oil prime the cracks, get the primer inside and around, next tape off and use a high quality flexible, paintable outdoor caulking, (many brands to choose from) . Fill void, run with finger, let dry, it will shrink a little, that’s good...Oil prime again, let dry, apply Bondo, much like sparkle, it’s two parts, easy on the hardener. Let dry, sand flush, oil prime and paint...

It a little labor intensive, but if you want to give yourself the best shot of long lasting repair, it’s the way to go..
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