Which one of these better foaming ( Polyurethane vs. Polyethylene)

Polyethylene Foam Strip - Custom Polyethylene Sealing - Ramsay Rubber

Foam Ninja Polyethylene Foam Sheet 12 x 12 x 1 Inch Thick - 2 Pack Black Charcoal - Custom Foam Inserts High Density Closed Cell PE Case Packaging

PE Foam Sheet Roll – Polypack Plastics

1/2 THICK POLYETHYLENE PLANK FOAM - Albany Box Company

48 x 108 x 1 - 2.2 lb. Density, Polyethylene Foam Plank, Laminated, White - BGR

PE Foam (Polyethlene)-Rolls, Kuala Lumpur, Malaysia - Innovative Packaging Solutions

Mode 65 PE foam – StupidFishEnterprises

Reflective Polyethylene PE Foam Insulation in Quezon City, Metro Manila

PE Foam Sheet Laminating M/C

CanDo PE White Foam Roller, Full-Skin, Half-Round, 6 x 36