Expandable raw material SPAN-PACK®

Expandable polystyrene raw material SPAN-PACK® is sold unexpanded. Solid resin particles are expandable because they contain a blowing agent inside.



When heated with steam they expand up to 50 times its original volume creating multitude of microscopic cells. Particles are sold in different shapes to fullfill particular packaging needs.Once expanded we will obtain a low density foamed polystyrene "peanuts"