Same use but vastly different in not only application but composition, meaning many energy saving and environmental benefits.

OPACI-COAT Vs. Ceramic Enamel

Ceramic Frit vs OPACI-COAT-300/500®

Ceramic clay applied to glass is heated to 1,100°F(600°C) and becomes fused to the glass. 50% silicone, 50% water solution is sprayed, roller coated or curtain coated onto glass and dried by evaporation of water (either ambient or oven) curing the silicone to the surface of the glass.
Unlimited, because the frit is fused to the glass. Unlimited.  Silicones have an excellent track record in construction.  OPACI-COAT-300/500® has been in use for more than twenty years.
Ceramic frit does not break down when exposed to ultraviolet rays. OPACI-COAT-300/500® does not break down when exposed to ultraviolet rays.
Ceramic frit has noability to help glass remain in an opening when broken. Silicone bonds with the glass and will hold broken glass in an opening when applied at a wet film thickness of 13 mils.
Cannot be repaired if frit surface is damaged. Silicone surface can be repaired in the field if scratched, or touched up if coverage has noticeable light areas from the exterior.
Matches very well with dark colors.  Can have noticeable lines or streaks in light colors. Most reds and yellows are impossible. Exceptional color matching capabilities (including reds and yellows) with 3 day lead times on most sample and production orders.
Contains solvents and other heavy metals that create hazardous materials disposal concerns. Does not contain any environmentally hazardous ingredients.  No lead or heavy metals.  We are Green!
5 years by fabricator 10 years
Ceramic frit cannot be applied to the reflective surface of the glass. OPACI-COAT-300/500® may be applied to wide variety of reflective as well as pyrolitic glass surfaces.

What is Spandrel, Vision Glass, and the Difference Between Frit and Silicone? (3 Post Series) Part I Most Overheard Questions About Spandrel Part II “Can I Put It In A Vision Area?” Part II