Quote Originally Posted by phillydude View Post
Don't do it ! And this is why, a vacuum bag put 1500 lbs per square inch on whatever is inside, with that force it is possible to crush the stock and even bend steel. You could do some real damage. I've use these to make laminated plywood forms . Just remember "the road to hell is paved with good intentions "
If atmospheric pressure (outside the bag) is only 14 lbs per square inch relative to a vacuum, how is this possible?