- Improves adhesive bond between porcelain and cement increases surface area of porcelain, similar to sandblasting but more controlled. - Gel viscosity allows for accurate and controlled placement. - 9.5% is the higher concentration offering a faster etch in only 90 secs. Contains: - 5 gr syringe of 9.5% hydrofluoric acid. - Dispensing tips & instructions. **For further product information, please contact Chat Support**