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 Wood filler...Off topic but would love your advice
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dalelargent
Navigator

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USA
198 Posts

Initially Posted - 04/19/2019 :  09:58:07  Show Profile  Reply with Quote
Hi all,

I have a porch rail that is in sad shape after this winter. The rail is a 2x6 laying flat/horizontal and acts as a cap rail around the porch. One area, approximately 6 sq inches, has rotted horribly, but only about 1/2 inch down. I would like to replace the specific board, but the carpentry will be sort of nightmarish and I have been dreading it.

I awoke with a thought this morning. Surely there is some product I can mix up and pour into the affected area (after removing rotted material). I thought of this in relation to how some have drilled rotting deck cores and poured in epoxies or what have you.

Any recommendations on what I could do? By the way, the finished product will be painted with house paint.

1989 c25 WK/TR #5838
1998 Catalina 36 mkii
1983 Vagabond 14

Edited by - dalelargent on 04/19/2019 09:59:02

islander
Master Marine Consultant

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USA
3992 Posts

Response Posted - 04/19/2019 :  11:15:19  Show Profile  Reply with Quote
I fixed a rot area in a window sill by filling it with epoxy. I filled it full then let it soak in. After it hardend I re filled it to level it out then painted it. The cap rail should be on an angel to shed water. Sounds like water is pooling on the level cap rail causing the rot.

Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound



Edited by - islander on 04/19/2019 11:19:10
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dalelargent
Navigator

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USA
198 Posts

Response Posted - 04/19/2019 :  13:09:21  Show Profile  Reply with Quote
Thanks for the encouragement, Scott. I will give it a try.

I have some g flex laying around. Do you suppose that is suitable?

The specific spot had a knot which seems to have dramatically increased the issue. The rest of the cap railing is fine.

1989 c25 WK/TR #5838
1998 Catalina 36 mkii
1983 Vagabond 14
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islander
Master Marine Consultant

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USA
3992 Posts

Response Posted - 04/19/2019 :  14:19:00  Show Profile  Reply with Quote
G flex is what I used I think. Only because it was what I had laying around. You want it to flow and soak into the wood so having it warm will help.

Scott-"IMPULSE"87'C25/SR/WK/Din.#5688
Sailing out of Glen Cove,L.I Sound


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Chief RA
Chief Technical Advisor

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USA
191 Posts

Response Posted - 05/04/2019 :  08:02:40  Show Profile  Reply with Quote
Use auto body filler (Bondo) as it won't absorb water and will fill well. Might be good to pour in liquid epoxy first to soak in and seal weak areas. Chief

COMPASS ROSE C250WK
Tall Mast, Wing keel
PORT CHIEF, Bodega Bay Ca.
IE,EE,FCC lic #1890
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Stinkpotter
Master Marine Consultant

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Djibouti
9013 Posts

Response Posted - 05/04/2019 :  08:50:16  Show Profile  Reply with Quote
Git Rot is a "penetrating" epoxy--very fluid, which soaks into the fibers of rotting wood and (hopefully) stops the sub-surface spread. I would suggest that as the first step, and then thickened G-Flex as needed to level and smooth the area.

Dave Bristle
Association "Port Captain" for Mystic/Stonington CT
PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired),
Now on Eastern 27 $+!nkp*+ Sarge

Edited by - Stinkpotter on 05/04/2019 08:50:56
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Peregrine
Admiral

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830 Posts

Response Posted - 05/04/2019 :  09:24:23  Show Profile  Visit Peregrine's Homepage  Reply with Quote
Someone mentioned it above. Bondo!
Easy to work with. Will need painting as it is greenish. If possible take a plane or belt sander and give the entire cap a peak sloping off to each side. It will keep water from pooling on the flat surface.
Use a primer and good exterior paint.


John Gisondi
Peregrine
#4762


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Derek Crawford
Master Marine Consultant

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USA
3312 Posts

Response Posted - 05/04/2019 :  09:41:11  Show Profile  Reply with Quote
There are a couple of products on the market (one is called Penetrating Wood Filler) which solidify rotten wood. It pours into the area and sets so solid that you can not get a screw into it!

Derek Crawford
Chief Measurer C25-250 2008
Previous owner of "This Side UP"
1981 C-25 TR/FK #2262 Used to have an '89 C22 #9483, "Downsized"
San Antonio, Texas
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