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The Etching liquid is a thin fluid and contains 37% phosphoric acid
The bottle version has a low viscosity gel-like consistency
The flexible tip can be individually adjusted before application
3M™ Etching Liquid is a 37% clear phosphoric acid etchant used to etch enamel and/or dentin as indicated in the instructions provided with the various dental adhesive systems.
1 Bottle Etching Liquid 9 ml