Strongest UV protection available in a bottle. Helps prevent your EPDM rubber roof from fading, oxidizing, drying and cracking, which is caused by harsh UV rays. Roof-Gard is mild, non-abrasive formula, keeps surfaces cleaner longer with no residue or oily build-up. Contains no silicone, waxes, glycerine or petroleum distillates. Simply spread evenly with mop or cloth and let air dry. Will not harm rubber roofing. Endorced by Carisle Syntec Systems.