When manufacturing toy cars, the quality of the plastic molds plays a crucial role in determining the durability, precision, and overall performance of the final product. Selecting the right material for injection molds ensures smoother production, longer mold life, and cost efficiency. But with so many options available, which materials are the best for toy car injection plastic molds?

　　Key Factors in Choosing Mold Materials

　　Before diving into the best materials, let’s consider the key factors that influence the selection:

　　Durability – The material should withstand high-pressure injection cycles.

　　Heat Resistance – It must endure repeated heating and cooling without warping.

　　Corrosion Resistance – Some plastics release corrosive gases during molding.

　　Machinability – The material should be easy to machine for intricate toy car designs.

　　Cost-Effectiveness – Balancing performance with budget constraints.

　　Top Materials for Toy Car Injection Molds

　　1. P20 Steel

　　P20 is a popular choice for toy car molds due to its excellent machinability and good polishability. It offers a balance between durability and cost, making it ideal for medium-to-high production runs.

　　Pros:

　　Good wear resistance

　　Easy to machine and polish

　　Cost-effective for mid-range production

　　Cons:

　　Less suitable for extremely high-volume production

　　2. H13 Tool Steel

　　H13 is a premium choice for high-volume toy car production. It boasts superior heat resistance and toughness, making it perfect for molds that undergo frequent heating and cooling cycles.

　　Pros:

　　Exceptional heat resistance

　　Long lifespan for high-volume production

　　Retains hardness at high temperatures

　　Cons:

　　Higher cost compared to P20

　　3. S136 Stainless Steel

　　For toy cars requiring a mirror-like finish, S136 stainless steel is an excellent option. It offers high corrosion resistance, making it ideal for molds used with PVC or other corrosive plastics.

　　Pros:

　　Superior corrosion resistance

　　High polishability for glossy finishes

　　Durable for long production runs

　　Cons:

　　More expensive than P20 and H13

　　4. Aluminum (7075-T6 or 6061-T6)

　　Aluminum molds are lightweight and cost-effective, making them suitable for prototyping or low-volume toy car production. They offer fast heat dissipation, reducing cycle times.

　　Pros:

　　Lower cost and faster machining

　　Excellent for short runs and prototypes

　　Good thermal conductivity

　　Cons:

　　Less durable than steel molds

　　Not ideal for high-volume production

　　5. NAK80 Steel

　　NAK80 is a high-hardness, pre-hardened steel known for its excellent polishability and wear resistance. It’s often used for toy car molds requiring fine details and smooth surfaces.

　　Pros:

　　High polishability for smooth finishes

　　Good wear resistance

　　No heat treatment required

　　Cons:

　　Higher cost than P20

　　Which Material Should You Choose?

　　The best material for your toy car injection mold depends on your production needs:

　　Prototyping/Low Volume? → Aluminum

　　Medium Production? → P20 Steel

　　High Volume/High Precision? → H13 or NAK80

　　Corrosive Plastics/High Gloss? → S136 Stainless Steel

　　Conclusion

　　Selecting the right mold material ensures efficiency, durability, and cost savings in toy car manufacturing. Whether you prioritize cost, longevity, or surface finish, there’s a perfect material for your needs.

　　To learn more, please click to view our product page: https://www.hsmmould.com/Multi-cavity-injection-molding