Cleaners containing sodium hypochlorite (bleach) can be an effective short term solution. Cleaners containing sodium percarbonate have proven successful at keeping mold at bay and are environmentally-friendly. Be sure to follow the manufacturerfs instructions. Fiber Composites does not endorse proprietary products or processes and makes no warranties for the products referenced herein. Reference to proprietary names is for illustrative purposes only and is not intended to imply that there are not equally effective alternatives.
Products to try: Corte Clean and/or ConcrobiumXT Eco-Wash and Mold Defense.