Onyx is a viscous 40% phosphoric acid etchant that stays where you place it, does not run and rinses away cleanly and completely. The high-contrast black gel makes it easier to see where you have etched, and where you haven't. Use with any bonding system or technique that requires etching: selective etch or total etch. Made in the USA.
• Highest strength, most effective etchant
• Black silicon carbide particles provide the greatest contrast, making it easy to rinse away completely
• No dye - no chance of staining porous surfaces
• Particles can be agitated on tooth to mechanically scrub and clean the surface
• For use on dentin or enamel

This is a non-stock item. Please allow 1-2 weeks for shipping.