Some of the sanding blocks are able to bend to reach those tight spaces. Blocks require no adhesives. Sandpaper sticks to the block like glue.
Sanding Block Product Family
Users of Sanding Blocks report reduced paint prep times, reduced material consumption and increased paint department productivity.
Double-density block that act as two blocks in one. Dense Side Block is recommended for more aggressive blocking. The Soft Side Block is recommended for color sanding.