Caulks Sealants and Fillers in the Caulks Sealants and Fillers sub-category in the Adhesives Sealants and Tape category from GoVets are ideal for completing or working on projects. Caulks and sealants are used to fill gaps and cracks, and to seal joints and seams. They are available in a variety of materials, including acrylic, silicone, latex, and polyurethane. Sealants are used to waterproof and protect surfaces from moisture, dust, and other environmental elements. Fillers are used to fill in holes, cracks, and other imperfections in surfaces. Shop today to find the right product for your project.