EPS . Expanded Polystyrene:
Available in cut to size pads.
Can be hot wire cavity cut, saw cut, glued to corrugated to fit any requirement .
PE . Polyethylene
Closed cell, plastic, does not absorb water.
Available in plank form or roll stock.
Available in multiple thicknesses.
Can be die cut and heat sealed, saw cut. hot wire cavity cut, commonly glued to corrugated
PU . Polyurethane:
Open cell, soft, sponge-like.
Available in large buns or cut to size.
Available in many densities, IFD's & Colors.
Can be die cut, glued to corrugated or saw cut.