Ultra-Etch is a 35% phosphoric acid solution.

It features ideal viscosity, which, along with the use of the Blue Micro or Inspiral Brush tip, facilitates precision placement and superior control.

Ultra-Etch is self-limiting in its depth of etch (average depth of 1.9um with 15-second etch), creating an etch pattern that adhesives can penetrate for increased bond strength and reduced sensitivity.