Description
32% Phosphoric Acid Etchant
Uni-Etch is a 32% phosphoric acid semi-gel etchant that is effective at quickly etching enamel and dentin. Uni-Etch is blue in color for easy visualization and contrast, creates micro retentive surface characteristics that are necessary for successful bonding, and rinses away cleanly and quickly leaving no residue to interfere with bonding. Uni-Etch utilizes a polymer to create thixotropic properties, thus enhancing handling characteristics.
4-syringe pack of Uni-Etch can provide approximately 120 applications (30 applications per 5g syringe).
30g Bulk Bottle of Uni-Etch can provide approximately 185 applications.
30ml Bulk Syringe of Uni-Etch can provide approximately 195 applications.
Download BISCO's Etchant Comparison Chart
Unique Benefits:
- Rinses away cleanly and quickly leaving no residue to interfere with bonding
- Blue in color for easy visualization and contrast
Clinical Significance:
- Creates microretentive surface characteristics that are necessary for successful bonding
In the box
- 4 Syringes Uni-Etch (5g ea.)
- 60 Disposable Syringe Tips
- Instructions
Benefits

Blue Color
Blue in color for easy visualization and contrast.

Easy Wash Off
Etchant rinses away cleanly and quickly, leaving no residue to interfere with bonding.
Instructions
Etchants Instructions For Use
5/22Empty Etchant Syringe Instructions for Use 3/21
3/21Brochure

BISCO Etchant Comparison Brochure
BrochureSDS
Uni Etch SDS US English
EnglishUni Etch SDS INT English
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TurkishCan I use the selective-etch technique with Uni-Etch?
Yes. You can use Uni-Etch with the selective-etch technique. However, BISCO recommends using Select HV Etch for selective-etch due to its high viscosity and gel state which allow for pinpoint placement.
Is there any difference between Uni-Etch and Etch-37?
Yes. Uni-Etch is a 32% phosphoric acid etch while Etch-37 is 37% phosphoric acid etch. This is the only difference between the two etchants.
What are the storage requirements for Uni-Etch?
Store at room temperature (20°C/68°F - 25°C/77°F). Store away from direct sunlight.
How does the “blue” color of Uni-Etch make etching easier?
Uni-Etch's blue color allows for easy identification and contrast where deep color differentiation is important. The vibrant color assists clinicians in being able to see the product during placement and removal procedures.
How long should I etch or clean my restorations with Uni-Etch?
- Dentin and enamel should be etched for 15 seconds.
- If using phosphoric acid as a cleaning agent on dental restorative materials: 30 seconds.
Why is Uni-Etch’s thixotropic viscosity significant?
BISCO’s semi-gel etchants (i.e., Uni-Etch) utilize a polymer to create thixotropic properties and enhance handling characteristics. It is more versatile than thicker gel etchants because it can be easily manipulated into small areas such as endodontically treated root canals and undercuts.
Can Uni-Etch be used with any other tips than the 25 gauge blue tips that are provided?
It is recommended to use the tips that arrive with the product, which have been tested for optimal dispensing. The 25 gauge tip should be used with the 1g syringe, and the 22 gauge tip should be used with the 5g syringe.