Porcelock is the perfect companion for porcelain and crown and bridge repair. PorceLock is a buffered 2.5% hydrofluoric acid gel that is both safe and effective for intraoral and extraoral use. Porcelock creates bond strengths three to five times greater than treatments using silane alone. It achieves bond strengths approaching those of etched enamel after a 3-5 minute treatment. Porcelock's gel viscosity and needle tip dispensing allows you to place the gel only where you want it.