... porous surfaces. DESCRIPTION: It is a one part, water based acrylic sealant that cures to a flexible and tough rubber with good ... :1. Waterproof, Paint able.2. Flexible3. Excellent Adhesion to most construction materialsWHERE TO USE1. It is mainly for sealing the gaps ... gutters.2. It is also can be used on most construction materials, such as brick, concrete, plasterwork, asbestos cement, wood, glass ...