Gap Pad® VO Ultra Soft comes in Mauve/Pink color. The fiberglass side (pink) has a non-tacky surface whereas the other side has inherent tacky surface. The inherent tack on one side allows adhesion to the heat sink (as shown in the picture) while the non-tacky surface provides easy handling for rework. The fiberglass not only provides a reinforcement carrier but also makes the material more resistance to puncture, shear and tear.