Metal to Plastic Conversion: 7 Benefits of Plastic Extrusions
If you’re currently manufacturing a component from aluminum, steel, or another metal, there may be an opportunity to improve the product while reducing manufacturing costs.
Converting a metal part to a custom plastic extrusion can provide significant advantages in weight, corrosion resistance, design flexibility, production efficiency, and overall cost.
Of course, plastic isn’t the right solution for every metal component. But when the application is suitable, converting from metal to plastic can offer benefits that go far beyond simply changing materials.
Here are seven reasons to consider a metal-to-plastic conversion for your next project.
1. Reduce Manufacturing Costs
Cost reduction is often one of the biggest reasons manufacturers investigate replacing metal components with plastic.
Metal parts may require machining, bending, welding, painting, coating, or other secondary operations. A properly designed plastic extrusion can often incorporate multiple features directly into the profile.
This can reduce secondary operations, assembly requirements, labor, and production time.
For higher-volume applications, those savings can become significant.
2. Reduce Part Weight
Plastic is considerably lighter than many commonly used metals.
Replacing an aluminum or steel component with an engineered plastic extrusion can reduce the weight of the finished product while still providing the performance required for the application.
Lighter components can mean easier handling and installation, reduced shipping costs, and less overall weight in the finished assembly.
3. Eliminate Rust and Improve Corrosion Resistance
One of the major advantages of plastic over metal is its resistance to rust and corrosion.
Metal components exposed to water, salt, chemicals, or outdoor environments may require coatings or finishes for protection. Many plastic materials naturally provide excellent resistance to these conditions.
This makes plastic extrusions particularly attractive for swimming pool, marine, construction, outdoor, and industrial applications.
4. Combine Multiple Parts Into One Profile
A custom plastic extrusion can often perform the job of several separate components.
Channels, grooves, snap fits, flexible sections, mounting features, decorative surfaces, and other details may be incorporated directly into the extrusion’s design.
Instead of manufacturing several parts and assembling them later, it may be possible to create one continuous profile.
Fewer parts can mean fewer suppliers, less assembly, reduced inventory, and lower production costs.
5. Increase Design Flexibility
Plastic extrusion provides designers and engineers with tremendous flexibility.
Custom profiles can be developed for a specific application rather than forcing an existing shape to work.
Depending on the design and material, plastic extrusions can include rigid and flexible sections, complex geometries, custom colors, textured surfaces, transparent sections, and functional features.
A metal part that requires several manufacturing steps may potentially be redesigned as a single custom plastic extrusion.
6. Reduce Finishing and Maintenance Requirements
Metal components often require painting, powder coating, anodizing, plating, or other finishing processes.
With plastic extrusion, color can often be incorporated directly into the material.
UV-resistant materials can also be selected for outdoor applications, while specialized materials can provide impact, chemical, weather, or flame resistance where required.
The result can be a finished component requiring fewer secondary operations and less maintenance throughout its service life.
7. Choose a Material Specifically for the Application
One of the greatest advantages of plastics is the variety of materials available.
Depending on the application’s requirements, a plastic extrusion may be produced using materials such as:
● Rigid PVC
● Flexible PVC
● ABS
● Polypropylene
● HDPE
● LDPE
● Polycarbonate
● HIPS
● Specialty engineered compounds
Material selection can be based on factors including strength, flexibility, temperature, impact resistance, UV exposure, chemical resistance, appearance, and cost.
The goal isn’t simply to replace metal with plastic. It’s to select the right material and profile design for the job.
Is Your Metal Part a Candidate for Plastic?
Not every metal component should be converted to plastic.
But if your current part is expensive to manufacture, susceptible to corrosion, heavier than necessary, requires multiple secondary operations, or consists of several pieces that must be assembled, it may be worth exploring a plastic alternative.
A well-designed custom plastic extrusion can potentially simplify the product while reducing weight, manufacturing steps, and overall cost.
Let’s Look at Your Part
Already manufacturing a metal component and wondering whether it could be produced in plastic?
Maximus Plastics can help evaluate your application and determine whether custom plastic extrusion could be a practical alternative.
Whether you’re developing a new product or looking for ways to improve an existing one, sometimes the biggest opportunity starts with one simple question:
Does this part really need to be metal?
Contact Maximus Plastics to discuss your application and see if a metal-to-plastic conversion could make sense for your next project.