Example Basalt Chopped Strand Mat:
Basalt Chopped Strand Mat in general can be applied where E-Glass, sometimes S-Glass or Carbon Fibers can be used, as well. As Basalt is more expensive than E-Glass, but cheaper than Carbon Fibers, typically it finds implementations, more suitable to its particular properties and fills an important gab when it comes to cost-performance ratios.
You can find a comparison to E-Glass, S-Glass or other materials by clicking here: Basic Comparison To Other Fibers.
Knowing how Basalt compares to other fibers allow to precisely engineer an optimal solution, which could also be in form of a hybrid (combining Basalt with other Fibers made from Glass, Carbon, Kevlar, etc.)
An Example of an Engineered FRP.
In Fiber Reinforcement Products (FRP) the engineer chooses the fiber, based on the desired outcome. E.g. if lighter weight requirements at identical strength to currently used fibers are required or if higher strengths are necessary while staying within the weight specifications.
There are other examples relevant to durability, corrosion resistances, break strength, chemical resistances, thermal applications, etc.