Clean and Care General Cleaning Cleaning of Tnon panels is important to yield long-term results and maintain sufficient light transmission of panels. Self-cleaning by rain is usually sufficient. If required, use diluted mild household detergents for additional cleaning. Make sure the detergent contains no abrasives or solvents. Pre-wash with warm water, then wash area to be cleaned with a soft sponge or brush, preferably with hot water, until clean. Rinse with water and dry with a soft non abrasive cloth. Heavy Oils or Tar Stains Heavy oil or tar stains can be removed with an ethyl alcohol watery solution. Rub the area gently with a soft rag. Follow with general cleaning as stated above, rinsing thoroughly with water before drying. Cleaning Large Areas Large areas may be professionally washed with a high-pressure water jet, possibly adding a mild compatible detergent, and/or stream jet. Avoid allowing the spray tip to come too close to the panel. Pressure washers often have enough pressure at the spray tip to penetrate or tear the panel. Avoid Avoid cleaning the panel when dry, as the sand and dust particles cling to the exterior of the panel and may scratch the surface (minor surface scratches will not damage the panel, the scratches will simply reduce optical clarity). Avoid repeated sliding of sheets over each other, even when protected by the protective film. This action generates an electrostatic charge in the sheet, attracting dirt and dust and hindering cleaning. See section in this booklet titled “Chemical Compatibility” for other important information.