I've used their spray cans recently, in various colours and it seems pretty good. I tried it as an alternative to hammerite, which doesn't seem to be up to much nowadays (if it ever was in the first place).
ive used the satin and matt finish in black ! does a fine job ! as above used as an alternative to Hammerite which can be a nightmare when using a brush ! i used to spray with hammerite now I use the Rustoleum and use a roller much quicker !
Tis great stuff IMHO. Wipes the floor with Hammerite.
There are a few threads around t'interweb where people have painted full cars with it and a foam roller with incredible results. Lots of hard work flatting and polishing though. Seems to have good longevity too.
Have used the spray cans for decades. Used to be decent; then went totally to crap. Had a metal filing cabinet the soon-to-be-ex wanted gray. Took me 10 spray cans of paint to finish. 5 cans of paint to cover as 80% of the paint ended up on the floor. 5 cans tossed as they did not match the color (varying shades of tan instead of grey.)
Still tried recently, seem to spray better.
I do use the quart cans and it is decent. Will show the slightest imperfection in the surface as it does not flash over like better paints. It is cheap though and takes 2 days to dry to where you can handle the pieces.
It is a fairley recent introduction over this side of the water Scott, only really been readily available for a couple of years.
A variation on your "Tremclad" I believe?
It is one of the things the EPA regs screwed up. These new 'environmentally friendly' propellents are not as good.
More recent ones seem better. Still the $2.99 spray ColorTouch stuff I get at the grocery works as well and is 2/3 the price. Coats are a bit thinner but easier to use.
Never heard of Tremclad.
Krylon is the other main brand here. Seems to work better than rustoleum.
Duplicolor is good spray. Available at auto parts stores (motor spares there?). It and Krylon are made by Sherwin Williams. Nice thing about the Duplicolor is you can get many factory colors.