You can use 3M or other body filler. You can use almost any 2
equal part epoxy system. You can use Durham's Rock hard water
putty, though it is not expressly for exterior work. None of
these products will take stain. You will be performing a paint or
faux grain finish. If you insist on staying stainable, remove and
replace.

--
______________________________
Keep the whole world singing . . . .
DanG (remove the sevens)




"Higgs Boson" wrote in message
...
On Jan 28, 11:32 pm, blueman wrote:
internaughtfull writes:
Hi,

I had some work done on a wooden porch and some dry rot
was replaced with durham's wood putty. It dried for one day
then
was painted with valspar ultra latex. It gets wet and peels.

I repainted it and covered it with plastic to allow for drying
but
it still peels.

Can I just scrape this and seal it with polyurethane then use
something like Kilz on it? It is a satin white and a small
area
so perfect color matching is not that important. Or does the
peeling indicate something else.

While as other posters pointed out, your primary problem is
probably
that you didn't let it dry enough...

However, unless you let it dry completely and thoroughly seal
all edges
of the wood with an impermeable protective layer and keep it
that way
forever, then you will get movement of water in and out.
However, most
putties are not really waterproof so they can run into problems
with
moisture.

My solution for outside is to always use an epoxy-based product
(Bondo
is OK but it tends to be more brittle and not attach as well to
wood
which over time results in separation from the wood when it
repeatedly
expands & contracts). It's more expensive but should be a more
permanent
and professional solution.

Could you suggest such an epoxy-based product? I have an oak
doorsill
that shouldn't have been termite infested, but it was. I scraped
out
all the crud that
I could, and drowned it in termite killer. Been years, and I
have
not yet
repaired the damage and stained the area (assuming it will take a
stain).
Have been monitoring the pro- and anti-Bondo discussions with
growing
confusion.

So I would appreciate name(s) of these epoxy-based products, if
you
think they might work in an oak door sill.

TIA