Stone Cleanse Size:1 gal. A proprietary catalyst interacts with

A proprietary catalyst interacts with bleach and enables enhanced cleaning at a lower concentration level

Extended dwell time is very important when using this product

Reduces liability

Heritage Restorer is a restoration detergent for historical or sensitive substrates

when used as directed

Stone Cleanse Size:1 gal. A proprietary catalyst interacts withDescription: Stone Cleanse is a no scrub, no rinse cleaner that is safe and effective for removing stains caused by algae, mildew, mold, moss, and lichen from exterior surfaces without the use of hazardous chemicals (such as bleach) or the harmful effects of pressure cleaning. Stone Cleanse is perfect for use on sensitive surfaces such as monuments and sculptures, but can be used on any exterior surface, including roof, sidewalks, decks, fences, and