ProSpec, a Bonsal American brand, has introduced PermaFlex Lite 525, a lightweight thin set mortar for tile and natural stone installations. The lightweight technology allows for the same coverage as a 50 lb. bag of traditional mortar in a 25 lb. size. It also incorporates post-consumer recycled glass microspheres, rather than sand, to help divert the waste from landfills. The reduced weight per bag means easier lifting for the installer. These design features mean the product contributes to Leadership in Energy and Environmental Design (LEED) project points. PermaFlex Lite 525 is available in 25 lb. bags in both white and gray.