PolyCor™ is an exclusive brand of performance plastics materials from Piedmont Plastics. PolyCor’s most widely known product is PolyCor™ AP, which is custom made as a siding material for enclosed trailers and other specialty vehicles.

PolyCor AP is an excellent product for trailer building, serving as a superior alternative to traditional materials such as wood and metal. By replacing these materials, PolyCor AP delivers cost-efficiency, functionality, and performance. 

Here is an overview of PolyCor products’ advantages in trailer manufacturing:

Types of PolyCor 

PolyCor AP 

PolyCor AP is a specially formulated product for mobile trailer siding. Unlike aluminum, which is susceptible to "oil canning" (a warped, wavy distortion that appears on the side of a trailer due to temperature changes), PolyCor AP remains stable under extreme weather conditions. Its benefits over aluminum also include: 

• Lighter Weight: Slightly lighter than .040-inch aluminum, PolyCor AP’s reduced weight lowers the load of moving trailers. 

• Easy Maintenance: PolyCor AP is compatible with household cleaning products. 

• Moisture Resistance: PolyCor AP’s waterproof qualities protect trailer contents from moisture. 

• Chemical Resistance: Known for its durability, stability, and chemical resistance, PolyCor AP is suitable for a wide range of loads. 

• Color Options: PolyCor AP is available in four standard options (white, grey, black, and silver), with additional vibrant colors upon request. 

PolyCor HL 

Uniquely designed for trailer and specialty vehicle interiors, PolyCor™ HL is a transportation-grade material that excels in performance. It serves as a lightweight, durable twin-wall plastic ceiling panel, ideal for interior headliner or ceiling panels in a wide range of trailers and specialty vehicles.

Key qualities include: 

• Light Weight: PolyCor HL lowers overall vehicle weight, which improves fuel efficiency and payload capacity. 

• Water Resistance: Designed to be waterproof, PolyCor HL remains intact and does not deteriorate from moisture. 

• Easy Installation: As a float sheet, PolyCor HL requires fewer screws and no adhesive. 

• Durability: PolyCor HL is long-lasting, reducing the need for repairs and replacements. 

• Color Consistency: Scratches and scuffs are less visible. 

• Easy Maintenance: Like PolyCor AP, it conforms with standard household cleaners, saving extra time and effort to find suitable cleaning solutions. 

• Robustness: PolyCor HL expands and contracts, allowing it to withstand major shifts in temperature.  

• Simple Installation: PolyCor HL ensures that trailer interior and exteriors are safe and lightweight, making it an excellent material for transportation and specialty vehicles.   

• Noise Resistance: PolyCor HL’s lightweight, fluted structure absorbs sound vibrations, preventing them from passing through the material and entering the trailer’s interior. Its thickness also allows for small air pockets within the material, which function as further sound barriers.

Find the Right PolyCor Solution for Your Trailer Application

Whether you're building enclosed cargo trailers, specialty vehicles, recreational trailers, or commercial transportation equipment, PolyCor products offer lightweight, durable alternatives to traditional materials. With solutions designed for both exterior siding and interior ceiling applications, PolyCor helps manufacturers improve vehicle performance while reducing maintenance requirements and long-term ownership costs.

From the smooth, weather-resistant surface of PolyCor AP to the lightweight, noise-reducing construction of PolyCor HL, these innovative materials are engineered to meet the demands of modern trailer manufacturing. Their resistance to moisture, chemicals, impacts, and temperature fluctuations makes them a reliable choice for a wide range of transportation applications.

Piedmont Plastics stocks PolyCor materials at locations across North America and can help you select the right product for your specific application. Contact your local Piedmont Plastics branch today to learn more or request a quote!