Temrex - Gel-Etch Semi Gel 13ccIndicated for occlusal pits and fissures Highly visible to help in hard to reach areas Has low viscosity Easily washes off tooth surfaces Gel Etch Semi Gel is a bonding agent for areas that need etching gel of lower viscosity, such as occlusal pits and fissures and small class I lesions. The visible green colored gel is formulated for hard to reach areas when etching is necessary before placing fissure sealants.