SIGCO - Heat Treating - heat strengthened and fully tempered glass
Heat Treating Glass SIGCO heat treats 1/8” through 3/4” glass using a brand new, state-of-the-art, convection tempering oven. SIGCO offers two heat treated products – heat strengthened glass and fully tempered glass. Heat strengthened glass has approximately twice the mechanical and thermal strength of annealed glass. Heat strengthened glass is NOT a safety glazing product. Fully tempered glass has approximately four times the mechanical and thermal strength of annealed glass and is a safety glazing product. Consequently, when fully tempered glass breaks, it “dices” into many small pieces – instead of several large, sharp shards. SIGCO applies a small, sandblasted logo in the corner of each lite of heat treated glass, unless the customer requests otherwise. Please note that once glass has been heat treated, it should not be field altered. Tempered glass should not be subsequently edged, drilled, milled, or sandblasted. Heat treated glass is also more susceptible to spontaneous breakage. This breakage can occur from small inclusions, impact or wind borne debris. Particular care should be taken to protect installed product from masonry run off or weld splatter.