For general use or providing protection of light sensitive products and samples, these amber bottles are constructed of soda-lime glass and have a space-saving square design. The ethylene-acrylate coating envelops the glass bottle like a protective skin providing better protection. Should the bottle break, the splintering hazards are reduced considerably. The maximum operating temperature for coated bottles is 80°C. To preserve the coating, do not clean at temperatures exceeding 60°C.