Finishes for ACX plywood and luan

Finishes, paints and coatings

Finishes for ACX plywood and luan

Postby KBas » Mon May 27, 2024 12:12 pm

I'm new here to the forum and building a teardrop. I am amazed and overwhelmed at the amount of information available in this forum. What i am looking for is what to use to seal the wood and weatherproof this project, preferably in a simple process. The sidewalls are 3/4" ACX plywood, the front and roof are 5mm luan, and the rear panel is 1/2" ACX ply wood. I am sure that I need to apply some sort of sealer to the wood prior to painting and what type of paint would work the best. I look forward to hearing from you.

Karl

ps If you reply, please remember I am not yet familiar with many of the acronyms used here. Thanks
KBas
Teardrop Inspector
 
Posts: 1
Joined: Mon May 27, 2024 11:53 am

Re: Finishes for ACX plywood and luan

Postby tony.latham » Mon May 27, 2024 6:02 pm

Nothing seals wood as well as fiberglass/epoxy. The epoxy soaks into the wood and plasticizes it.

https://youtu.be/BJZYGY2he1o?si=au8e1htj1GsYzeMo

I suggest 6 oz cloth and recommend Raka for both the glass and the epoxy.

Image

Image

Image

Epoxy needs UV protection, so either coat it with spar varnish or an oil-based paint

Tony
User avatar
tony.latham
Gold Donating Member
 
Posts: 6960
Images: 17
Joined: Mon Jul 08, 2013 4:03 pm
Location: Middle of Idaho on the edge of nowhere

Re: Finishes for ACX plywood and luan

Postby Pmullen503 » Tue May 28, 2024 5:57 am

I agree, though epoxy is daunting and expensive, nothing works better.

The next best would be covering in canvas and paint.

The minimum I would recommend is the "The Mix". Thin oil based poly; 75% thinner/25% poly and give a good saturating coat, especially edges and let dry a couple days. Then repeat with 50/50, then 75/25 and finally 100% poly. Then paint. You'll still have to worry about joints opening up and water pooling, so be vigilant with maintenance.
Pmullen503
1000 Club
1000 Club
 
Posts: 1138
Images: 67
Joined: Sun Nov 23, 2014 1:33 pm
Location: Fond du Lac, WI
Top

Re: Finishes for ACX plywood and luan

Postby Tom&Shelly » Tue May 28, 2024 7:55 am

For what it's worth, Shelly and I learned to use epoxy and fiberglass building our teardrop, and found it easy to use and very effective. We used Raka epoxy/glass and basically the system Tony describes.

Can't say much about other sealing systems such as "the mix" as I don't have much experience with it.

Tom
173599 170466 173366
Tom&Shelly
Palladium Donating Member
 
Posts: 2304
Images: 2108
Joined: Tue Sep 05, 2017 3:27 pm
Location: Upstate New York/New Mexico
Top

Re: Finishes for ACX plywood and luan

Postby tony.latham » Tue May 28, 2024 2:04 pm

though epoxy is daunting...


There are numerous videos on YouTube on how to apply fiberglass/epoxy.

https://www.youtube.com/results?search_query=fiberglassing+cedar+strip

I'm at the point where using fiberglass and epoxy isn't any more of a production than using varnish. Lay the glass down, mix a small batch of epoxy (using pumps), and apply it using a squeegee. It's just another skill.

Tony
User avatar
tony.latham
Gold Donating Member
 
Posts: 6960
Images: 17
Joined: Mon Jul 08, 2013 4:03 pm
Location: Middle of Idaho on the edge of nowhere
Top


Return to Skinning secrets

Who is online

Users browsing this forum: No registered users and 1 guest