Polystyrene (EPS)          Sponge                 Polyurethane                Machinery  

Rigid foam finds its major use for hot and cold insulation. It has the lowest Thermal Conductivity of any commercially available insulating material, hence best insulation performance. Rigid foam has the following qualities making. 
 It is suitable as insulation and buoyancy foams:

Low Thermal Conductivity

Excellent adhesion to a range of materials

Thermal Stability from 160 degrees Celsius to 110 degrees Celsius

Flow properties suitable to fill any shape of cavity

Good Flame Retard ant performance properties