Specifically Formulated For Food-Cutting And Preparation Surfaces, Suma Block Whitener Provides Superior Cleaning And Whitening Of Cutting Boards And Other Plastic Surfaces. It Is A High-Alkaline, Noncorrosive, Ready-To-Use Liquid. Thick Liquid Formula Spreads Easily Over Rough Surfaces And Allows Even Applications. It Begins To Work Immediately Upon Application. Apply Directly To Surfaces And Use With A Brush For Deep Cleaning. Powerful Formula Whitens And Brightens Cutting Boards In As Little As 15 Minutes. Whitener Meets Dot And Osha Noncorrosive Requirements. It Is Pale Yellow And Has A Chlorine Scent.