Opaque PDMS (Silicone rubber)

2 cm wide x 2 cm long

Ridge (lines) micro structures

Width = 5 microns

Edge-to-edge spacing = 20 microns

Height = 30 microns

Super Hydrophobic (Cassie-Baxter State)

Can be used for Riblet Drag Reduction Studies

Warning: High aspect ratio structures buckle easily. Handle with care.