Here is a set of 240 Various 4k surface imperfection alpha that all Seamless and has the highest quality. (with black background).You can bring more
240 seamless surface imperfection-vol1
ArtStation - 240 seamless surface imperfection-vol1
ArtStation - MEGA PACK - 100 Practical and useful WOOD Stencil
ArtStation - MEGA PACK - 100 Practical and useful WOOD Stencil
583 Wood Stencil Imperfection Seamless. You can use it in ZBrush, Substance Painter, Mari, Substance Designer, Blender and other program for
550+ Wood Stencil Imperfection Seamless (Displacement map) vol.3
ArtStation - 16 burned and torn cloth, synthetic material and
200 Roughness Imperfection Vol.2
100 Wood Stencil Imperfection-VOL 03 by miladkambari on DeviantArt
ArtStation - 50 Metal Stencil Imperfection Seamless
ArtStation - MEGA PACK - Over 1000 Imperfection Texture (10 in 1
vol 1: 3: 4
114 Metal Imperfection seamless-vol 2
50 Dirt Stencil Imperfection - VOL 03
ArtStation - MEGA PACK - Over 1000 Imperfection Texture (10 in 1