Ok so i decided to re waterproof my DIY non silnylon hex tarp. I made it out of the light weight rip stop from walmart. Well I decided to go with the silicone and mineral spirits. Well i obviously didnt have enough mineral spirits. So i added some paint thinner. The mixture looked like it was enough. It wasnt, the tarp is pretty thick with silicon in some places. The places where i peeled some off, isnt waterproof. I have a big trip on wednesday and i REALLY need a tarp. I tried going to the last two walmarts around here that still have their fabric dept. BUT no luck, i couldnt find any. So i went up to joanns to get some of their rip stop but didnt want that heavy of a tarp. That stuff is just sooooo heavy compared to mine. Is there a way to save my tarp..... Looking back i should have used gasoline... Its cheaper and i have gallons laying around. I choose not to because its dirty and it smells. Well i would have taken the color and smell over my useless tarp. Please help!