Depending on the type of insulation it could be anything from an expanding foam to fiberglass to shredded denim.
paper tht is made of foam.
urea foam insulation
foam made out of food sometimes if you blend food heaps it will turn into foam :)
its greek and means born of foam, made from foam or foam risen :)
Polyurethane foam does exist and is mostly widely used in Building and construction, Transportation and Appliances. More information about urethane foam can be found at wikipedia which has an whole article on it.
Foam.
Foam
Foam
Memory foam is made up of a polyurethane foam material with is molded into a form of a mttress, pillow, and so on.
Foam rubber was originally made out of latex. More recently another form of foam rubber made out of polyurethane is also used alongside the latex form and sold commercially.
Foam rc airplanes are a wonderful hobby entailing the building and flying of model airplanes that are constructed out of a lightweight but durable foam. More information on this hobby can be found at www.rcfoamairplanes.com.