Originally Posted by nogods
I was near a walmat today so I stopped in and check the 1.00 bin. There was some material that felt like nylon but was not ripstop. It ssems slightly heavier than 1.9 ripstop (going by how my 1.9 ripstop tent feels. I asked the "associate" if she knew what it was. She said no, but she thought it might be waterproof. She cut a piece off and I tested it at a water fountain. Sure enough, water just beads on it. In fact, you can get water droplets to act like mecury beads on it. If I made a bag out of it it would not leak. It is not plastic. One end was frayed like cutoff jeans get after several washings.
There was only 4 1/2 yards so I bought it for $4.50. I think it would be too heavy to make a tarp even if there was enough of it.
I'm thinking of making snake skins out of it - but I'd like some suggestions.
Is the fabric breathable. Way to test it to press it against lips and blow, if air passes through it is breathable. I found some that was in a Wal Mart bargin bin here that seems to have the same properties as you are describing as far as water beading off of it. Another test you might want to try is to make a pouch shape with the fabric and put a cup of water in it. Then close the top and squeeze gently to see if water oozes through the fabric. The real test for any " water resistant" fabric is to put about a quart of water in a pouch of it suspended over a bowl and time how long it takes for water to ooze through it. My son in law and I have been testing various fabrics in that way and will post the results if anyone is interested. The winner here so far ( inclubing some high tec brand name gear store bought ) is two fabrics that came from Wal mart bargin bins. They were still dry on the bottom after 2 hours of holding a quart of water. The best the brand name fabrics did was 20 mins and water was dripping through. The DIY raincoat/pack cover posted in my pics here is made of the Wal Mart fabric. I am heading out for an overnite and once again the forcast is for rain so it will get a good test over the next couple of days. Will post the results here when I get back.