Loose-Fill Asbestos Insulation - small, popcorn-like particles often used in attic spaces and wall cavities.
Asbestos Blanket Insulation: A grey-white roll or blanket type of insulation commonly used to insulate steam pipes and boilers.
Asbestos Millboard Insulation: Fire protection and thermal insulation, often used as electrical insulation and easily identified by its cement-like texture.
Asbestos Block Insulation: This was often used around furnaces and boilers. It is semi-rigid and grey-white in color.
Asbestos Spray-On Insulation: A textured insulation applied to ceilings and walls for fireproofing, soundproofing or insulating purposes.