EPP material (also known as energy-absorbing cushioning material
Polypropylene foam) is *0%**0% lighter than polyurethane foam for
the same energy-absorbing effect, while the core material of car
bumpers, side shields, knee guards, seat bones, etc.
Are usually required to have good energy absorption and
impact resistance, and the core material is also required to be
light in weight. this makes polypropylene foam
an alternative to polyurethane foam in the field of automotive
energy absorption and cushioning. In addition
to its light weight, polypropylene foam is more advantageous than
polyethylene and polystyrene foam in areas where higher operating
temperatures are required, such as sun visors, instrument
insulating panels and areas where temperatures tend to rise
between doors, due to its higher heat resistance.
