Truck camper build.

Canvas covered foamies (Thrifty Alternatives...)

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Re: Truck camper build.

Postby Philip » Wed Oct 09, 2019 12:43 pm

Poly resin is not something to use. It outgasses for a very long time. Epoxy is the only one to use.

Total Boat is about the cheapest brand of epoxy. It is a lot thicker than most brands. If you want a smooth finish you will need to sand.
Here is my build.

viewtopic.php?f=50&t=67073
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Re: Truck camper build.

Postby dbhosttexas » Thu Oct 10, 2019 11:50 am

Philip wrote:Poly resin is not something to use. It outgasses for a very long time. Epoxy is the only one to use.

Total Boat is about the cheapest brand of epoxy. It is a lot thicker than most brands. If you want a smooth finish you will need to sand.



I'm not shy of sanding... I am not looking for show car quality finish, but I don't want to look like a dust bowl refugee either...
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Re: Truck camper build.

Postby dbhosttexas » Thu Oct 10, 2019 12:00 pm

Philip wrote:Poly resin is not something to use. It outgasses for a very long time. Epoxy is the only one to use.

Total Boat is about the cheapest brand of epoxy. It is a lot thicker than most brands. If you want a smooth finish you will need to sand.



Just looked up at the availability of this. They have 2 different hardeners for it, there is the slow and fast hardener. Not sure which one to use.

At the gallon size, they seem to go for about $125.00 / kit. How much resin would a typical foamie, let's say a teardrop, use?
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Re: Truck camper build.

Postby Philip » Fri Oct 11, 2019 7:44 am

If you look at my 1st camper build. I used about 1.5 gallons. That was just the outside, no inside glass work. The glass work inside the lower frame work was a gallon. That was a practice area. Having never done epoxy glass work before I needed somewhere to practice.

The fast hardener is what you want. In a 70 degree shop you have about 30 minutes work time. It the temps are higher use the slow hardener.

Do not use a roller to apply this epoxy on the first coat. It is thick. It will roll the fiberglass up on the roller. Just use a brush to apply. Sand to smooth as you can get. Then apply next coat with a squeegee.

My camper was outside width of 7'4", long was 7'4", camper body was 4' tall. The top was 8" tall
Here is my build.

viewtopic.php?f=50&t=67073
Philip
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Re: Truck camper build.

Postby dbhosttexas » Fri Oct 11, 2019 1:14 pm

Philip wrote:If you look at my 1st camper build. I used about 1.5 gallons. That was just the outside, no inside glass work. The glass work inside the lower frame work was a gallon. That was a practice area. Having never done epoxy glass work before I needed somewhere to practice.

The fast hardener is what you want. In a 70 degree shop you have about 30 minutes work time. It the temps are higher use the slow hardener.

Do not use a roller to apply this epoxy on the first coat. It is thick. It will roll the fiberglass up on the roller. Just use a brush to apply. Sand to smooth as you can get. Then apply next coat with a squeegee.

My camper was outside width of 7'4", long was 7'4", camper body was 4' tall. The top was 8" tall


So a W.A.G. for resin for my camper design, which is effectively 82" wide, 10' long, and 54" tall from bedrail to roof would be approx 6 gallons, for inside and outside. Fair enough.

That helps me figure out required budget of the build.

It looks like the OTI Epoxy Fiberglass Resin 1.5gallon kit with hardener is about 2/3 the price of the Total Marine kit. So 4 @ 89.99 to get 6 gallons of resin / hardener.

Still considerably more than PMF, but it alleviates the concerns I have with PMF durability, and poly resin offgassing.

I need to figure on stringers / reinforcing members to hold things like windows, the AC, door, attachment points for the awnings and support members for the ceiling and overcab storage area. Most specifically, what sort of wood to use, and how to properly treat it to prevent water intrusion and rot.

I have to apologize ahead of time, I probably tend to overdesign and overanalyze things. I only want to do this project once and be done with it, not have an ongoing maintenance headache, or regrets for not doing this or that...
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Re: Truck camper build.

Postby Philip » Sat Oct 12, 2019 8:41 am

I would suggest rethinking the hard mounted A/C. Any type of A/C mounted into a trailer or truck might give off enough vibrations and sound to keep you awake. The A/C setting on the ground attached by hoses will keep those type of vibrations out of the sleeping area.

The only place you will need wood is for mounting points. Window opening, door opening, bed mounting rail, cab overhang area. With glass you are putting a hard shell around the foam. That will provide all the stiffness you need in the most part.
Here is my build.

viewtopic.php?f=50&t=67073
Philip
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Re: Truck camper build.

Postby GPW » Sun Oct 13, 2019 6:01 am

small QUOTE : “ the concerns I have with PMF durability” ... DB, 6+ years in the southern Louisiana Sun and rain … still in great shape … :thumbsup:
There’s no place like Foam !
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