GLUMA Etch ndi othandizira etching potengera phosphoric acid. Mankhwala a GLUMA Etchants amapezeka m'njira ziwiri komanso mphamvu ziwiri kuti apatse madokotala mano.GLUMA Etch 35 Gel imagwiritsa ntchito mphamvu ya 35% ya phosphoric acid. GLUMA Etch 20 Gel, yokhala ndi 20% ya phosphoric acid, imapereka zowongolera zokwanira za enamel ndi dentin, zomwe zimapangitsa kuchepa pang'ono kwa kapangidwe ka mano ndi kulimba kofanana.