The foam injection molding material is be used to diminish weight effectively, but easy to crack. The high impact strength form plastic ,a new material originally developed by Toyota Boshoku could solve the problem of cracking.
The cracks are reduced in foam material by adding the high impact strength form plastic.
The soft rubber in the salami structure will effectively crack, disperse and absorb energy from the point of impact.
*Cracks (tiny cracks in the impact)
