Working on the roof of my boat and wondering how to best protect the plywood edges of the roofline. Just a few coats of epoxy, then paint? Or should I wrap with a light layer of glass too. It’s only 3/4”, so that’s a little tight for wrapping, but 4oz cloth should do it. Maybe I’m over-obsessing.
Opinions? Best practices?
Thanks.
Jbo
Protecting exposed plywood edges
Protecting exposed plywood edges
Last edited by jbo_c on Mon Nov 11, 2024 12:06 pm, edited 1 time in total.
- Jaysen
- * Bateau Builder *
- Posts: 6596
- Joined: Wed Aug 05, 2015 7:59 am
- Location: St Helena Island, SC
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Re: Protecting exposed plywood edges
If you didn’t glass the top, it will be had to glass just the edge and make it smooth without a tone of fairing… which is my go to.
Run some cello/tape on the bottom to make a dam. Brush some neat epoxy, pack a pile of fairing compound on the edge. Pull the tape and sand.
It’s a bit of work but if you mix your own you can tweak the compound to be hard or soft depending on the edge. Also allows you to cover a lot of defects in the edge. Just be careful not to over sand and expose wood.
Run some cello/tape on the bottom to make a dam. Brush some neat epoxy, pack a pile of fairing compound on the edge. Pull the tape and sand.
It’s a bit of work but if you mix your own you can tweak the compound to be hard or soft depending on the edge. Also allows you to cover a lot of defects in the edge. Just be careful not to over sand and expose wood.
My already completed 'Lil Bit'. A Martens Goosen V12 set up to sail me to the fishing holes.
Currently working on making a Helms 24 our coastal cruiser.
My someday CK17
Currently working on making a Helms 24 our coastal cruiser.
My someday CK17
“Mark Twain/Samuel Clemens” wrote:Eat a live frog first thing in the morning and nothing worse will happen to you the rest of the day.
Re: Protecting exposed plywood edges
The top does have a layer of 4oz fabric(to, hopefully, prevent checking). My hesitation on wrapping with glass is just what you mention - I can see myself glassing only to then sand through while filling/fairing. So easy to do on a thin edge . . .
Jbo
Jbo
Re: Protecting exposed plywood edges
Oh, and this is actual marine ply, meranti and okume if that matters.
Jbo
Jbo
- Jaysen
- * Bateau Builder *
- Posts: 6596
- Joined: Wed Aug 05, 2015 7:59 am
- Location: St Helena Island, SC
- Contact:
Re: Protecting exposed plywood edges
This won’t help you but…
I have discovered that it is easier to start with the edges. Put a good round over on the edge, strip of tape/fabric, then the flat. Lets you sand the edge tape but then cover the sanded section again. If you think about it, it makes sense.
Good luck.
I have discovered that it is easier to start with the edges. Put a good round over on the edge, strip of tape/fabric, then the flat. Lets you sand the edge tape but then cover the sanded section again. If you think about it, it makes sense.
Good luck.
My already completed 'Lil Bit'. A Martens Goosen V12 set up to sail me to the fishing holes.
Currently working on making a Helms 24 our coastal cruiser.
My someday CK17
Currently working on making a Helms 24 our coastal cruiser.
My someday CK17
“Mark Twain/Samuel Clemens” wrote:Eat a live frog first thing in the morning and nothing worse will happen to you the rest of the day.
Re: Protecting exposed plywood edges
Makes sense. I’ll do that on the other section of roof I have to do.
Thanks.
Jbo
Thanks.
Jbo
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