Porcelain Etchant - Hydrofluoric Acid GelPORCELAIN ETCHANT improves the adhesive bond between porcelain and cement by increasing the surface area of the porcelain to be bonded. BISCOs PORCELAIN ETCHANT is available in 2 concentrations: 4% or 9. 5% (Hydrofluoric Acid Gel). Curion is the official importer and Canadian source for authentic BISCO products. This product is backed by the manufacturer's warranty.
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