
Rockstar 500 is an abrasion-resistant steel plate, not a type of sheetrock. Here's a clear breakdown
Rockstar 500 is a wear-resistant steel plate made to endure high levels of abrasion and wear.
It is manufactured by Welspun Corp Limited (WCL) and is part of their Rockstar series of high-strength steels (Rockstar 400, 450, 500, etc.).