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Dry Rot Repair - HELP!!

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Morris N. Reinisch

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Jul 28, 1998, 3:00:00 AM7/28/98
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I've got some trim at the front of my house that has some dry rot. One of
the home repair shows, the host scraped away the wood that was dry rotted
and then used an auto body compound to fill in the cavity. Was I hearing
things or is that not correct? Can you actually use auto body filler to
fill in the void caused by dry rot? Why would you want to use that instead
of the more traditional "plastic wood" or some other wood substitute that
you can get from a hardware store? I am reluctant to go to an auto supply
store to fix a problem with my wood trim. It doesn't seem to match.
Moreover, is an auto body filler water proof which I would need since this
is for outdoor use?
Any comments, suggestions or help would be greatly appreciated.
Thanks,
Morris

Doug Miller

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Jul 28, 1998, 3:00:00 AM7/28/98
to
Auto body filler is much less expensive than plastic wood, and cures in
far less time. It doesn't shrink as it cures. It's easier to sand. And
cars are used outdoors most of the time, you know -- the filler wouldn't
be of much use if it wasn't waterproof.

In article <01bdb9bb$e5e42900$d122...@SHRINER.nai.net>,
"Morris N. Reinisch" <shr...@mail2.nai.net> wrote:
+I've got some trim at the front of my house that has some dry rot. One of
+the home repair shows, the host scraped away the wood that was dry rotted
+and then used an auto body compound to fill in the cavity. Was I hearing
+things or is that not correct? Can you actually use auto body filler to
+fill in the void caused by dry rot? Why would you want to use that instead
+of the more traditional "plastic wood" or some other wood substitute that
+you can get from a hardware store? I am reluctant to go to an auto supply
+store to fix a problem with my wood trim. It doesn't seem to match.
+Moreover, is an auto body filler water proof which I would need since this
+is for outdoor use?
+Any comments, suggestions or help would be greatly appreciated.
+Thanks,
+Morris

Matt V

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Jul 28, 1998, 3:00:00 AM7/28/98
to
"Morris N. Reinisch" <shr...@mail2.nai.net> wrote:

>I've got some trim at the front of my house that has some dry rot. One of

>the home repair shows, the host scraped away the wood that was dry rotted

>and then used an auto body compound to fill in the cavity. Was I hearing

>things or is that not correct? Can you actually use auto body filler to

>fill in the void caused by dry rot?

Yup. Oddly enough. I have a window sill that will get that
treatment.

>Why would you want to use that instead

>of the more traditional "plastic wood" or some other wood substitute that

>you can get from a hardware store?

I believe it's harder.

>I am reluctant to go to an auto supply

>store to fix a problem with my wood trim. It doesn't seem to match.

It's used quite a bit - I was surprised.

>Moreover, is an auto body filler water proof which I would need since this

>is for outdoor use?

No. Cars aren't for outdoor use. ;-)

>Any comments, suggestions or help would be greatly appreciated.

>Thanks,
>Morris


Matt

-Who is this BETA guy and how long will he be testing our stuff?

oem

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Jul 28, 1998, 3:00:00 AM7/28/98
to
We bought a specialty wood repair material at the hardware store (I forget
the name, but it's a national brand name ... good stuff) that said it
permanently repairs old rotted wood, etc. I opened the package, took out
the liitle tube, mixed a "golf-ball-sized" amount of the material with a
bit of the material in the tube until thoroughly mixed and spread it on
very quickly, as it hardened in about 10 minutes. As I was waiting for it
to thoroughly harden up, I went out to the car where I was repairing some
rust holes. I opened the can of "Bondo", took a small amount of the Bondo
and mixed it with a little of the stuff in the tube that came with the
Bondo, mixed it thoroughly and applied it quickly, as it hardens in about
10 minutes .... similar? Definately! They smell the same, mix the same,
set the same, cure the same, etc. About the only difference is the color,
but there are other body putty colors out there too. It may contain some
wood fiber, but being resin, It probably doesn't matter much what filler is
in it. Since that experience, I simply use the Bondo which is cheaper,
especially if your need a larger amount. It has held up well, by the way.

Morris N. Reinisch <shr...@mail2.nai.net> wrote in article
<01bdb9bb$e5e42900$d122...@SHRINER.nai.net>...


> I've got some trim at the front of my house that has some dry rot. One
of
> the home repair shows, the host scraped away the wood that was dry rotted
> and then used an auto body compound to fill in the cavity. Was I hearing
> things or is that not correct? Can you actually use auto body filler to

> fill in the void caused by dry rot? Why would you want to use that


instead
> of the more traditional "plastic wood" or some other wood substitute that

> you can get from a hardware store? I am reluctant to go to an auto


supply
> store to fix a problem with my wood trim. It doesn't seem to match.

> Moreover, is an auto body filler water proof which I would need since
this
> is for outdoor use?

dr...@my-dejanews.com

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Jul 29, 1998, 3:00:00 AM7/29/98
to
In article <01bdb9bb$e5e42900$d122...@SHRINER.nai.net>,

"Morris N. Reinisch" <shr...@mail2.nai.net> wrote:
> I've got some trim at the front of my house that has some dry rot. One of
> the home repair shows, the host scraped away the wood that was dry rotted
> and then used an auto body compound to fill in the cavity. Was I hearing
> things or is that not correct? Can you actually use auto body filler to
> fill in the void caused by dry rot? Why would you want to use that instead
> of the more traditional "plastic wood" or some other wood substitute that
> you can get from a hardware store? I am reluctant to go to an auto supply
> store to fix a problem with my wood trim. It doesn't seem to match.
> Moreover, is an auto body filler water proof which I would need since this
> is for outdoor use?
> Any comments, suggestions or help would be greatly appreciated.
> Thanks,
> Morris
>
The following was posted under rec.woodworking:

You need to go to http://www.rotdoctor.com/ You can check the data on the
products for rot repair, but you need also to read the test section where we
compared the Clear Penetrating Epoxy Sealer (CPES) to competitive products.
In those tests, product "A" was Abatrons Liquid Wood and product B was Git
Rot. You can see that they did not even come close to CPES in wood
penetration, which is the essence of rot repair.

The wood that is rotted is wood that the rot fungi have devastated. The
actual fungi (or their reproductive spores) are in the bad wood/good wood
interface and you need to reach that location if you want to stop the rot.
You can take out the rotted wood that you can see, but the fungi and rot
spores may still be there waiting until conditions are right for continued
growth. And there may well be rot that you cannot see. Whatever you use needs
to penetrate to that level.

We didn't test the Minwax product because it is acrylic based and does not
have the strength and endurance of epoxy.

Just filling with Bondo or other fillers is a temporary measure. You may get
lucky because the fungi are dead or environmental conditions have changed and
rot growth is no longer possible. But usually the rot will eventually return.

The Rot Doctor
http://www.rotdoctor.com
E-mail: dr...@rotdoctor.com
Phone: 206 783 0307
Fax: 206 783 0582

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