High-magnification foam mold technology

高倍率発泡成形技術
Injection Molded Products Utilizing foam mold technology
Weight reduction
Product category Design/Comfortable

High-magnification foam mold technology

-Challenge-  Pursuit of further weight reduction for EVs

Foamed plastics are increasingly adopted as a material that contributes to energy saving and weight reduction of automobiles.
For instrument panels and door trims, it is required to achieve both light weight as well as texture in terms of surface design and a pleasant feeling to the touch.

EV化に向けたさらなる軽量化の追求

-Solution-  Lightweight by foaming technology

Injection foam molding technology of PP resin is used to form the core (foamed) layer and the skin layer.
SEKISUI’s proprietary technology enables high-aesthetic appeal, high-shock resistance, and high rigidity, while reducing weight by 25-35% compared to solid resin parts.

発泡技術による軽量化

-Technology-  Technical information

Technical information

Technical overview

  Foam injection mold with all-purpose
PP-based compound resin

Injection molding method (Electric motors)

The mold core-back method releases foam components accumulated in the resion to form the core (foaming) layer and skin layer.
汎用PPベース配合樹脂による射出発泡成形

 Lightweight foam mold

Automobile interior materials 
25~35% weight reduction

Contrasting solid to 2x foam product
発泡成形品による軽量化

  Integration of three unique technologies Beautiful appearance,
high impact-resistance and rigidity 

Fusion of 3 technology

Material formulation : Appropriate formulation of all-purpose PP resin・Mold/Product design : Uniform filling design
・Molding technology : Stabilization of quality
独自の3技術融合による高外観・高衝撃・高剛性を実現

 Promising applications

Automobile interior parts, etc.

・Interior trim(Door and deck side)
・Luggage box
・Under-seat
Promising applications

Technical details