We did an article on the new RockSolid product. They redeveloped it and came up with their own proprietary formula called polycuramine. It's supposed to be a blend of epoxy, polyurea, and polyurethane that provides the best benefits of each.
While this sounds great in theory, it doesn't really work this way. For example, the RockSolid product is not U.V. stable. You would think it would be since that is one of the nice benefits of polyurea and polyurethane.
It looked to be a promising product, but based on the number of emails and comments in the article we get from people seeking advice about problems with the product, we're not so sure RockSolid has done as well as they would have liked.
You can read the article
here if you like.
The biggest issue people are complaining about is a patchy look. Glossy in one area and dull in another.
The problem from our perspective seems to be a combination of not enough material for the stated coverage rates, dependent on surface profile, and the thin application that requires use of a foam roller.
If the end user had a fairly porous surface profile or they had to grind to remove a previous coating or sealer, the concrete absorbs much of the product and provides for a patchy look similar to an epoxy primer. It really is not a very good one coat system. It requires two coats in many cases to get good color uniformity.
Rust-Oleum provides the customer service for this product and to their credit, they are quick to give a free kit to fix issues. However, we have found the quality of technical information they provide is lacking and sometimes confusing to the consumer.
We noticed that Rust-Oleum is now rebranding the product for a separate line of floor coatings called Restore. It's being sold in Lowe's and other locations.
To be honest, we haven't heard that many performance related issues for the coating, so it seems so far that people who have been successful with the initial application are fine with the product, though it still may be too early to tell.
I feel that a consumer would get much better customer service and satisfaction with their floor if they used Rust Bullet as the OP was asking.
That really goes for any of the floor coatings that the various vendors here offer. The quality of the products offered and the customer service can't be matched by the "one coat and done" kits that can be found from the home improvement centers and large online retailers.