Any spray foam insulation is comprised of small bubbles, called cells, sprayed on a surface. In open-cell foam, the cells are not totally encapsulated, allowing for a softer material that is lighter and more flexible. Let the experts at McCoy Foam explain the benefits of both kinds of spray-foam insulation and suggest the best choice for your project and budget. McCoy Foam is a leading insulation and concrete lifting contractor, dedicated to providing the best materials, installation and service to our customers in Booneville, Mississippi and surrounding areas.