Full Pack Available on Gumroad
https://gum.co/oPIRE

Pack content:

Metal Surfaces Brushes and alpha set for Zbrush, 30 brushes and height/alpha maps, all 2048x2048 16bit.

-10 Metal Surfaces

-10 Rust Surfaces

-5 Metal Dots

-5 Metal Scratch

MoreImages

https://www.artstation.com/artwork/KB4d4

Plaster/Concrete Brush and alpha set for Zbrush, 30 brushes and height/alpha maps, all 2048x2048 16bit.

-25 Plaster-concrete Surfaces

-5 Concrete Dots

More Images

https://www.artstation.com/artwork/GVeQW

(free to use for commercial use)