Temrex - Gel-Etch - Etching Gel Syringe - w/Tips by Temrex SKU 927-2408AA 123 $21.99 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Gel Etch etching gel, 35% phosphoric acid, 12 gram syringe with 25 disposable tips.