Most people here have heard of using cotton balls infused with vaseline to start a fire, and keeping them in a pill bottle or for those of us who still enjoy 35mm, the film canisters. Well, I decided to see how long they burned and what else I could come up with that might beat it. All times are from the point of ignition, and the tests were conducted during 5-10mph mild breezes on a concrete privacy-fenced patio. I have more pictures, but I've decided to be sporting, and we don't need a thirty picture OP just for campfire starters.
My Control Subjects:My Petroleum Jelly Subjects (the sock is a little longer than the other subjects, but only by a half inch).My Fire Stick (I have matches, but saw it as a moot point, all materials took flame within 1/4sec of having it applied. I have no flint/steel combination, I don't even know where to look for one.)My 91% Alcohol applicator, great for cleaning glasses too without the etching effect ammonia-based cleaners have on plastic lenses:I first burned a regular cotton ball as a control. It burned about 25 seconds, and the smoldering stoped (not much though, teeny tiny red embers) at 75 seconds. I then remembered that I had some old socks that did nothing but make my feet itch and sore because they were so thin. A peice about 2 inches by 1 inch burned for 96 seconds, and smoldered until a total of 111sec had passed.
I grabbed a spray bottle (available at any walmart for a buck) and sprayed 5 sprays about 6in from a cotton ball, rotating it in my hand, with 91% alcohol. That cotton ball burned for 70sec, and smoldered until 178sec had passed.I ran an additional test on a similar legnth peice of cotton sock with the same sprays. 54sec was all it burned, and there was no smoldering evident.Petroleum jelly was the next fuel to be tested for the cotton balls and sock. The cotton ball burned until 209sec had passed, and smoldered until 246sec. The Petroleum Jelly sock was the real winner in this contest, as it burned out in 356 seconds. Almost 6 minutes!I then remembered I had some gelled alcohol pellet-stove fire starter. I bought it at Walmart (i think) for a dollar a bottle.The amount I used for each material's test:The gelled fire starter cotton ball burned 97sec, and smoldered until 121sec had passed. The gelled fire starter sock burned 176sec, and smoldered until 207sec. This was the only test I had where the sock has smoldering embers. The flame is nearly invisible with this stuff. Sorry for the side scrollers. My photo software offered this size for a 17" monitor (borrowed puter) and my copy of Photoshop has taken flight. These pics are actually just under 1/3 normal size.
Dumb question: I know oily rags will spontaneously combust. Is that something that could happen to cotton balls or socks infused with vaseline in a pill bottle?