I've had two things that needed pop-riveting lately, the bag dispenser lid from the doggie bathroom that got knocked over, and the extension from my rear downspout, to take the water away from the house.
I"m 96% sure I used the same alluminum pop-rivets as the last several times, but this time, the nail part broke off before there was any appreciable bulging of the "sleeve" part.
I tried 3 rivets on the first task before I just used vice-grips to squish the sleeve.(It came out perfect.) The downspout seemed to work okay on the second try, but that's still 4 rivets that failed and only one that worked.
Do they get brittle with age?
Should I be using steel pop rivets instead? What are the advantage of them?