by S. Heisley » Fri Oct 09, 2009 10:59 am
Hi, Foolsfortune:
Doug and KennyRayAnderson are giving you some good advice which you will do well to heed. A couple things that I can add:
When you make the 'box' removable, give the bottom, and especially those bolt holes 2 or 3 coats of epoxy as they will be vulnerable to moisture.
You talk about sealing parts of the trailer (seams and edges) with fiberglass sheets. I think KennyRay is talking about putting fiberglass sheets on all of the sides and top, not just the joints and edges. Plywood that sits out in the weather is subject to delaminating on all parts of it. The fiberglass will help keep that from happening.
The picture shows what appears to be some rot by the wheel. Cut or scrape off the worst of that and seal the hole well (3 coats, if you can) with epoxy and then patch the hole appropriately. If you're going with the Rot Doctor's CPES, an inside patch followed by their 'FILLIT' on the outside will probably do the trick really well. You can get advice on the best way to do all this through their website or through the website of whichever product you decide on. I would ask for advice from the manufacturer when you purchase their product as each may work differently.
It looks like much of the wood is already showing; but, the more of the wood you can expose when you're sanding off the paint, the better the epoxy can seep down into the wood, as well as over it, to protect it. After you’ve coated the trailer with epoxy, sand it just enough to give the paint something to grasp onto. A very light sanding with 100 grit sandpaper should work okay. Wipe off the dust before painting so you get a smooth finish. (If you’re using a product that is made to bond with the epoxy you’ve put on, you may not need to do this…again, check with the manufacturer.)
With so much of the paint peeling off, maybe you’ve only put one coat of paint on your trailer, each time you’ve painted it? It’s difficult to get a good, even coat on when you only paint it once each time. The next time you paint, put at least two coats of a good exterior paint on it. If you can see your way to using a marine/boat paint (pricy), that would be even better. Paint the whole thing, let it dry, and then, paint it again.
Last but not least, (…an easy one!) store the trailer at a slight angle, maybe by raising the tongue just a tad, so water will naturally trickle off the top and have less opportunity to work its way in. Please remember to brace the wheels so your trailer doesn't move or roll. (You will still need the tarp and the air cushion area that the fellows talked about.)
As the others have said this is my opinion. What you do is your choice.