Found another one. Need advice

[HMK]

Ok, found another TT. He says it's made of treated and concrete sealed plywood. What's that mean? I know what treated plywood is, but what is concrete sealed. It doesn't sound good to me.

Here is a link to it.

http://www.operationfish.com/teardrop-style-camper/

[twinight]

He probably used paint made to seal concrete with.
You can enlarge the pictures to see fasteners that have been painted over.
I doubt any concrete has been used.

[HMK]

The first thing I will need to do is vent that sucker. Fantastic Fan for sure. Maybe cover outside with canvas/paint

[Mojave Bob]

Treated plywood is pressure-soaked in caustic chemicals (containing arsenic or copper pesticide, depending on the age of it) that will outgas toxic fumes into the trailer. Concrete-sealed plywood is made with special glue to make it waterproof, and coated with release agents, so that it can be used on concrete forms without the concrete sticking to it. I don't know what exactly the risks of that can be, but I would not want these products in the confined space of a teardrop-size camper.