Teardrops n Tiny Travel Trailers

TB2 or TB3 still works …

As adhesive under, but for waterproofing, between the canvas and the outer paint?

To attach canvas to foam and wood. 2 is very highly water resistant and 3 is waterproof so they naturally do both glue and seal.

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The paint, typically latex, also adds to the waterproofing.

It’s not the glue but the procedure …

1. Attach canvas to CLEAN foam .
2. Add thin sizing coat to waterproof canvas fibers .
3. Paint the outside for weather and UV protection …

GPW wrote:It’s not the glue but the procedure …

1. Attach canvas to CLEAN foam .
2. Add thin sizing coat to waterproof canvas fibers .
3. Paint the outside for weather and UV protection …

My *opinion* is it makes sense to apply the second (saturating) coat before the first (adhering) coat has fully dried. I've wondered if it really makes a difference on canvas. The thought is that any polymerizing glue/coating (as opposed to solvent based like lacquer) sticks better to the earlier coat if the earlier coat is not fully polymerized.

PM , If the first coat holding canvas to foam is not dry , the sizing coat only rewets the underlying glue … I tried it …

And while surfing You Tube , I saw this and thought of “ Thrifty Alternatives” … https://www.youtube.com/watch?v=sc6ZXR0 ... &index=126

Nice! added to my wigwam / dome thread

http://tnttt.com/viewtopic.php?p=1243883#p1243883

I have been approached to build a bicycle trailer. I was doing some research and saw that video. Pretty cool. I am not sure where I had saw it, but years ago I found a link to a 1930's teardrop build that used just a simple wood frame with a canvas covering. It was basically just a sleeper, but had a kitchen built into the floor that you covered up to make the sleeping platform. Small, but functionable. Only think I don't like about them is that they supply little to no insulation.

Get the shape you want then spray closed cellPU foam from the inside

or pour from the outside

then shape to get an even thickness.

For snowy mountain living, 3-4" would be enough.

For more temperate, 1-2".

I was kinda’ thinking of splitting Large Bamboo into uniform slats to make the ribs . Bamboo can easily be heat bent to retain the shape … More like hoops for a Conestoga wagon … sorta ‘ .. Just another idea !!!

Wow, I just finished reading this loooong thread. Lot's of good ideas. Doug

Well done DK !!! Now you know as much as we do !!!

Hey GPW, I'd like to find more detailed drawings of a Willey Window. Do you have some? I private messaged you on FB. TIA Doug