Dental Planet offers Mydent's Defend Etch Gel kits and SDI's Super Etch Gel syringes and Jumbo Refill System a super etch phosphoric acid blue gel for enamel and dentin.  Easily controlled Super Etch gel flows under direction, not under gravity.

Septodont's Sept-etch gel syringes(offered in Jumbo also), is also a phosphoric acid gel, but also compatible with all total etch bonding systems.  For etching of dentin and enamel prior to application of a total etch bonding system for composite restorations, prevents flow onto soft tissue or adjacent teeth.

3D Joy-Etching Gel 12gm Syringe w/tips
10.20 10.20 10.200000000000001 USD
Essentials Disposable Pre-Bent Needle Tips
13.20 13.20 13.200000000000001 USD
Mydent Defend Etch Gel Kit
11.20 11.20 11.200000000000001 USD