Smacchiatore Gel is a biodegradable gel cleaner specifically for cleaning and renewing stone products. Suitable for cleaning all super ci in stone (travertine, tuff, carparo), where you want to return the original appearance eliminating limestone, efflorescence salt, moss, mold, algae and blackening from atmospheric smog. Its gel formula is particularly effective on all vertical surfaces and on facades or historical monuments that can not be deteriorated by aggressive cleaning actions, such as sandblasting or solutions or too acidic or too alkaline.