No, it was rolls and it was Izal (I've never heard of Bronco) I'm in the UK - was Bronco American?
And if it's true that one was supposed to do something with Izal to make it usable, is it not a damning indictment of their marketing department that so few people seem to know that?
We had a shop and sold loads of the stuff.
We also sold huge thick, angled glass bottles of "soda water" (which doesn't mean the same thing in American) which had a huge silver syphon thing on top. They were very heavy and always kept on the top shelf.
We didn't sell many of them and I was never allowed to try it nor was it ever fully explained to me what it was and I always believed it must be something very exotic. The truth, when it came to me, was one of the biggest disappointments of my life.