37% Phosphoric Acid Etchant with Benzalkonium Chloride
Etch-37 w/BAC is a 37% phosphoric acid semi-gel etchant that is effective at quickly etching enamel and dentin. Etch-37 w/BAC is polymer-thickened and effectively removes the smear layer, etches and demineralizes enamel and dentin. It is easily manipulated into small areas such as endodontically treated root canals and undercuts. This makes it more versatile than some thicker gel etchants for etching all restorative surfaces. Published research proves that BISCO etchants produce higher bond strengths to (wet or dry) dentin1 and enamel.
- Rinses away cleanly and quickly leaving no residue to interfere with bonding
500 EGP
Out of stock
Product Details
Etch-35™ w/BAC | Bisco USA is a 35% phosphoric acid etchant gel scientifically formulated to deliver optimal enamel and dentin conditioning for superior adhesive bonding. Enriched with benzalkonium chloride (BAC), this etchant offers a dual benefit — precise etching performance combined with antibacterial protection, ensuring a clean, disinfected surface prior to adhesive application. enhanced with benzalkonium chloride (BAC) to deliver both effective etching performance and antibacterial benefits. This premium formulation ensures clean enamel and dentin surfaces, promoting strong, reliable bonding for all adhesive systems and composite restorations.
Formulated and manufactured in the United States, the provides controlled viscosity for precision placement, reducing the risk of over-etching and ensuring easy rinsing. Its unique inclusion of BAC offers an added layer of disinfection, improving the overall integrity of the bonding interface.
What sets Etch-35™ w/BAC | Bisco USA apart is its balanced viscosity, engineered for controlled placement and easy handling during procedures. Unlike thinner liquid etchants that can cause excessive spread, Etch-35™ stays exactly where it’s applied, minimizing the risk of soft tissue contact and over-etching. Its bright blue color provides excellent visibility, allowing clinicians to monitor application and rinsing effortlessly.
The presence of BAC (benzalkonium chloride) enhances the product’s clinical reliability by reducing bacterial

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