On an episode of This Old House, I saw Tommy attach PVC molding with wood screws. He then filled the holes with what I believe to be automotive Bondo putty. Does anyone have experience with this method of attachment and using Bondo as a filler?
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I replaced some trim around an exterior door using 5/4" x 6" PVC boards. I predrilled and counter sunk 2 1/2" decking screws. I didn't use Bondo...I used exterior spackle. I used AZEK brand PVC and their installation spec sheet said predrill as you would for hardwood. I have used a Bondo type filler on wood (Minwax brand) and it worked just fine. Don't see any reason it wouldn't work with PVC. Just a little work to mix it.
Paint the bondo as soon as possible as water and UV will degrade it.
ANDYSZ2
I MAY DISAGREE WITH WHAT YOUR SAYING BUT I WILL DEFEND TO THE DEATH YOUR RIGHT TO SAY IT.
Remodeler/Punchout
What do you think of spackle as the filler?
I have never used spackle so I don't know how well it will hold up.
ANDYSZ2I MAY DISAGREE WITH WHAT YOUR SAYING BUT I WILL DEFEND TO THE DEATH YOUR RIGHT TO SAY IT.
Remodeler/Punchout
I've used spackle as filler but the problem is that is shrinks necessitating multiple applications. Bondo works good but is a pain since it sets up relatively quickly. I do really like the way it shapes and sands.
As far as using screws for attaching PVC moldings I'm not sure that it would have any advantage over nails: PVC lacks the rigidity of wood and therefore needs a lot of fasteners to hold it in place and straight. By the time you shoot 8 or 10 finish nails into the piece, you have plenty of holding power... I mean it's just a piece of trim...