Custom PU (Polyurethane)
Parts Manufacturing
Fully customize hardness, elasticity, and performance to improve wear life, load capacity, and durability.
Our Custom Capabilities
We manufacture custom polyurethane (PU) parts using casting and machining processes. Parts can be produced in different hardness ranges and shapes based on your drawings or samples. Our capabilities cover every aspect of plastic part customization, including:
- Custom sizes, thicknesses, and complex geometries.
- Fully customizable PU parts, Shore A 60A–95A.
- Bond PU to metal or other materials.
- Optional component assembly and sub-assembly services.
- Custom colors available to match product or brand requirements.
- Packaging solutions for bulk industrial supply or retail-ready products.
Types of Custom PU Parts We Manufacture
Flexiparts produces a wide range of polyurethane components used in industrial and commercial applications. Common PU parts we manufacture include:
Notes: All parts can be manufactured according to customer drawings or samples.
PU Materials for Custom Parts
Polyurethane (PU) is a versatile material widely used in custom applications for automotive, industrial, and consumer products. Its combination of hardness, flexibility, and durability makes it suitable for parts that need to withstand wear, impact, and chemical exposure.
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Why PU Is a Common Replacement Material
In many applications, these properties allow PU to replace traditional materials while improving part performance and longevity:| Material | PU Advantage |
|---|---|
| Rubber | Longer wear life, more consistent under friction/compression |
| Plastic | Greater flexibility and toughness, improved durability |
| Metal | Better impact absorption, lower noise, lighter components |
Manufacturing Processes
for Custom PU Parts
Flexiparts uses specialized polyurethane processing methods to ensure consistent quality, durability, and performance.
Injection Molding
We use it to make large quantities of parts with consistent quality and smooth surfaces.
Urethane Casting
Ideal for thick, heavy-duty, and highly wear-resistant parts
Insert Molding
We embed metal or other elements directly into plastic parts to create stronger assemblies.
Overmolding
We combine different materials in one part to add grip, flexibility, or protective features.
Extrusion Molding
We produce long custom profiles with uniform shapes for structural or functional parts.
Quality Control for Custom
PU Components
We take quality seriously. Every custom PU part we produce goes through strict quality control to ensure it meets your specifications and performs reliably. Here’s how we do it:
Incoming Material Inspection
We verify each batch of polyurethane by reviewing supplier certificates and testing sample hardness with a durometer, ensuring material consistency before production begins.
Mold Verification
We inspect each mold, checking dimensions and critical features with calipers and gauges, and run trial castings to catch bubbles, shrinkage, or surface defects before production.
Production Control
We monitor key parameters such as mixing ratios, temperature, and curing time, adjusting as needed to maintain consistent material properties and prevent defects during molding or casting.
In-Process Inspection
We measure critical dimensions with calipers or CMM during production and visually check parts for surface defects, catching issues early to prevent rework.
Final Inspection Before Shipment
We check finished parts for dimensions, hardness, and surface quality using calipers, CMM, and durometer, ensuring every component meets your requirements before shipment.Before shipping, each part is visually and dimensionally checked, and we verify assemblies, colors, and finishes, ensuring every part leaving our facility is ready for your use.
Key Advantages of Flexiparts Custom PU Parts
We combine polyurethane expertise with precision manufacturing to deliver reliable, high-performance components.
- Rapid prototyping & fast turnaround
- Custom shapes & complex geometries
- Custom materials & formulations
- Wide hardness range and flexible or rigid PU applications
- Excellent wear resistance with longer service life
- Strong load-bearing & impact resistance
- Fast communication & project transparency
- Stable quality & reliable delivery
Industry Applications
Custom PU parts are widely used in demanding environments where wear resistance and durability are critical. Flexiparts supports applications including:
Electronics
Device housings, connectors, insulation components
Automotive
Clips, structural components, mechanical parts
Medical Devices
Precision plastic components for equipment.
Industrial Machinery
Gears, bushings, wear-resistant parts
Consumer Products
Small plastic structural parts
How to Work With Us?
Getting custom PU parts from Flexiparts is simple and efficient.
Can you handle large-scale production?
Yes. We support both small and large production runs with consistent quality and stable lead times.
Can you produce parts exactly according to my CAD or sample?
Yes. We produce custom PU parts from your drawings or samples, reviewing designs for manufacturability and running trial parts to verify dimensions and performance before full production.
How do I choose the right PU hardness?
We help you select the right Shore hardness based on load, wear, and flexibility requirements.
Can PU replace rubber or metal in my application?
Yes. In many cases, PU offers better wear resistance than rubber and better impact absorption than metal. We can evaluate your application and recommend the best solution.
What is the typical lead time?
Samples usually take 1–2 weeks. Production time depends on part complexity and order quantity.
Do you offer bonded PU parts?
Yes. We bond PU to metals, plastics, or other materials by preparing surfaces, using compatible adhesives or formulations, and testing bond strength to ensure reliable performance.
Can you customize color and performance?
Yes. We match colors using Pantone references or your samples and adjust PU formulations for hardness, elasticity, or wear resistance, verifying with trial parts before production.
Can you handle urgent or on-demand orders?
Yes. We provide on-demand production and can prioritize urgent orders to meet tight deadlines. Please note that expedited scheduling may incur additional fees, which will be confirmed when you submit your CAD files or samples.
