Seeps into cracks and holes to form a waterproof, weatherproof seal.Non-hazardous, non-flammable, safe around plants and animals when liquid is in a fully cured and dried state.Forms a durable, breathable, weatherproof non-slip barrier.Resistant to rain, snow, sun, wind, hail, air, moisture, UV degradation, extreme temperatures and natural weathering.Blocks out air, water, and moisture.Prevents rust and corrosion.Mildew- and chemical-resistant.