Tower Sealants Acrylic Caulk Sealant provides an inconspicuous way to save energy by sealing areas that cause air leaks. It has an acrylic adhesive sealant ideal for use in sealing interior and exterior windows and doors. This product forms a flexible, durable, airtight and water-resistant seal that offers exceptional quality for protection from environmental conditions. It applies white or clear and can be easily cleaned with soap and water. It also may be painted when cured.