factory undercoat question

ha ha, guess i helped someone! i think thats why they are so generous with that stuff. they used it for everthing. wish i had a 5gal bucket today so when i get through screwing up my 72 welds, i can hide them again! it came out of a hose that looked like the overhead oil hose at walmarts oil change pit. they also had some in a caulking tube bigger than the ones we buy today. this was about 3inches in diam and ran by air preasure. i only see it used in trunk and floor. but it must have been cheap cause they used a LOT of it. :)