Prevest CeraEtch Etching Gel₹350.00 Expires by April 2024 Prevest CeraEtch Etching Gel quantity Add to cart SKU: ODS-26817 Category: Clearance Sale Description Description CeraEtch is 5% Buffered Hydrofluoric acid in semi gel form. It improves the mechanical bond between porcelain and bonding agent by increasing the surface roughness.