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Bost Custom Over Molding Solutions for High-Performance Engineering Plastics
Bost Custom Over Molding — Precision Engineering Plastics for Demanding Applications
Overview of Custom Over Molding Capabilities
Bost specializes in custom over molding that integrates sophisticated engineering plastics with metal, rubber and other substrates. With a strong R&D team and decades of production experience, Bost delivers overmolding solutions that optimize part performance, reduce assembly steps and improve product longevity. Our green-energy manufacturing approach ensures sustainable, repeatable processes for high-volume and prototype runs alike.
Materials & Special Properties
We work with a broad suite of modified engineering plastics: ultra-high anti-scar, super-corrosion-resistant, super fatigue-durable, ultra-abrasion-resistant, and high-temperature transparent grades. Custom over molding at Bost can add toughening, flame retardancy, conductive and thermal pathways, and enhanced impact resistance to meet precise application requirements. Material selection and compound modification are tailored to achieve optimal bonding, stress relief and long-term performance.
Precision Mold Design & Manufacturing
Bost provides end-to-end services from product mold design to mechanical processing and assembly. Our expertise in steel-plastic and plastic-rubber combinations ensures reliable interfaces and consistent part geometry. Custom over molding projects benefit from our advanced mold-making, process control and quality assurance systems that minimize defects like delamination, warpage and flash.
Advantages for OEMs and Design Engineers
Choosing Bost for custom over molding brings measurable advantages: reduced part count, improved ergonomics, integrated sealing and vibration dampening, and targeted functional surfaces. Our solutions lower manufacturing costs, accelerate time-to-market and extend service life in harsh environments—particularly for electric vehicle components, industrial equipment and consumer electronics.
Applications & Why Choose Bost
Bost’s custom over molding is proven across sectors requiring extreme durability, thermal management and chemical resistance. Backed by a high-tech production team and deep materials science knowledge, Bost is the partner for companies who demand performance, sustainability and manufacturing excellence. Contact us to develop a tailored overmolding solution that elevates your product.
custom over molding Display
Can Bost customize modified plastics with special properties?
Yes! We offer modification services such as reinforcement, flame retardancy, conductivity, wear resistance, and UV resistance, for example:
• Adding carbon fiber to enhance stiffness
• Reducing the coefficient of friction through PTFE modification
• Customizing food-grade or medical-grade certified materials
What are the core advantages of Bost engineering plastics compared to ordinary plastics?
Bost engineering plastics feature ultra-high mechanical strength, high-temperature resistance (-50°C to 300°C), chemical corrosion resistance, and wear resistance. Compared to ordinary plastics, their service life is extended by 3 to 8 times, making them suitable for replacing metals in harsh environments.
How do I select the appropriate engineering plastic grade for my product?
Selection should be based on parameters such as load conditions (e.g., pressure/friction), temperature range, medium contact (e.g., oil/acid), and regulatory requirements (e.g., FDA/RoHS). Our engineers can provide free material selection consulting and sample testing.
What is the minimum order quantity (MOQ)? Do you support small-batch trial production?
The MOQ for standard products is ≥100kg. We support small-batch trial production (as low as 20kg) and provide mold testing reports and performance data feedback.
What is the delivery lead time? Do you offer global logistics?
Standard products: 5–15 working days; custom modifications: 2–4 weeks. We support global air/sea freight and provide export customs clearance documents (including REACH/UL certifications).

Customized Plastic Injection molding -faster delivery and economical
Customized Plastic Injection molding -faster delivery and economical
Machined parts-CNC complex and precision plastic parts
Machined parts-CNC complex and precision plastic parts
Custom Larger and precision injection mould with high performance plastic
Custom Larger and precision injection mould with high performance plastic
Injection molding parts-Precision plastic parts custom
Injection molding parts-Precision plastic parts custom
BOST Injection molding -Customized and OEM Supplier
BOST Injection molding -Customized and OEM Supplier
Customized Plastic Injection molding -faster delivery and economical
Customized Plastic Injection molding -faster delivery and economical
Machined parts-CNC complex and precision plastic parts
Machined parts-CNC complex and precision plastic parts
Custom Larger and precision injection mould with high performance plastic
Custom Larger and precision injection mould with high performance plastic
Injection molding parts-Precision plastic parts custom
Injection molding parts-Precision plastic parts custom
BOST Injection molding -Customized and OEM Supplier
BOST Injection molding -Customized and OEM Supplier
Nylon Plastic Worm Gear custom for transmassion device
Nylon Plastic Worm Gear custom for transmassion device
Custom Overmolding mould-BOST rubber and plastic supplier
Custom Overmolding mould-BOST rubber and plastic supplier
Insert molding solutions for plastic mould manufacturer
Insert molding solutions for plastic mould manufacturerHow long can special engineering plastics remain durable and reliable in service? | Insights by Bost
How is sustainability addressed in the special engineering plastics sector? | Insights by Bost
What processing methods are suitable for special engineering plastics? | Insights by Bost
In which industries and applications are special engineering plastics most commonly used? | Insights by Bost
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