DAP's Commercial Kitchen Silicone is an NSF certified product suitable for food-zone areas in commercial/ industrial kitchens. This 100% silicone product is 100% waterproof, has a wide temperature range of -75?F to 350?F (intermitted temperatures up to 400?F). It meets FDA Reg 21, CFR 177.2600 and is certified by NSF to NSF/ANSI Standard #51.