ABS vs PP Injection Molding: How to Choose the Right Plastic
ABS vs PP Injection Molding: How to Choose the Right Plastic
ABS and PP are two common materials for custom injection molded parts, but they behave differently in strength, shrinkage, surface finish and cost.
ABS is often chosen for housings and appearance parts
ABS provides good toughness, dimensional stability and surface finish. It is widely used for electronics housings, appliance parts, automotive trim and custom enclosures where appearance and assembly fit are important.
PP is useful for lightweight and chemical-resistant parts
PP has low density, good chemical resistance and strong hinge performance. It is commonly used for clips, containers, covers and functional parts that need flexibility or cost efficiency.
Design review before tooling matters
Material choice affects shrinkage, gate design, cooling and warpage risk. Before mold making, Yuming reviews the part structure and application to recommend suitable material and tooling direction.
