0.5 ounce/yd^2 fiberglass e-cloth (high strength fiberglass), with an ultra-high-temp copper RTV coating. The coating will probably weigh 4 times the weight of the cloth (we'll see) ... but it'll be waterproof and good to 750F intermittent use.. 600F no prob. Instead of a center silicone ring, just a couple "rings" of the copper RTV. That should keep water from running down the tarp, and straight down the hole.
Not as strong as the commercially-available types, but far far lighter, and just as waterproof. Also, one yd^2 of 1/2 oz fiberglass costs less than 10 dollars, and the RTV costs about 4 bucks. Should be able to make 4 of the little buggers, or more, for less than $20.
If anybody else wants to jump to it & post results before I get the chance, feel free!!! My schedule is chaotic, so this experiment may take place in a week, or not for 3 months.
I bought the supplies while reading about the Ti stoves, a couple months back.
I'm still trying to figure out why longer/cooler burn times can't be achieved in a small stove. My old camp woodstove used to run for most of the night IF you got the draft just right (too low & it'd go out!), but I had sealed it up pretty tight.
Bookmarks