A tough, flexible, polymer modified sealer which protects below-grade wall surfaces. Designed for use as is or as part of an exterior wall waterproofing system with excellent elastomeric properties. It bridges shrinkage cracks as well as resists the attack of fungus, mold, bacteria while maintaining superior performance when exposed to chemicals found in soil. Stops ground water under hydrostatic pressure from penetrating foundation walls. Excellent to use on asphalt based roofs that have problems with ponding water. Can be sprayed or brushed onto concrete poured walls, foundation walls, concrete footing, EPS, XEPS or any foam board. DO NOT use on coal tar, PVC or TPO roofing systems.