Coltogum Water Stop is a tough, compact and brushable sealing compound. Small holes and cracks are bridged by the reinforcing fibers. Its permanent elasticity permits the compound to be applied in any weather, even in rain or snow. Coltogum Water-Stop has outstanding adhesion on practically every surface. All these characteristics combine to make Coltogum Water-Stop a perfect product for the repair of leaks and seepage on every part of the roof. It is so easy to use - one coat is sufficient.