Established in 1980, Calpex Plastics has more than 38 years of experience in providing high-quality, custom plastic extrusions to a wide range of customers in various industries. Our team is ready to provide our expertise at a moment’s notice.

Our state-of-the-art production facility is located in Oceanside, California, where our qualified machinists maximize the capabilities of our equipment and deliver custom plastic extrusions that meet the specific requirements of your design.

Products and Services

With our established processes, experienced team, and advanced equipment, Calpex Plastics is the perfect partner for your high-precision, tight-tolerance custom plastic extrusion needs.

Whether your design is for large, small, or miniature parts, Calpex Plastics can do the job. We can handle orders ranging from a few items to millions of feet of tubing, rod, profiles and spiral wrap. Lead times are quoted on a per-project basis. General lead time is 4-6 weeks. Blanket orders are also available. Orders can be submitted as IronCAD (ICD, ICS), JPG/ JPEG, PDF, and SolidWorks (SLDPRT, SLDDRW, SLDDRT) files.

The maximum extrusion profile width we can handle is 4 inches.  Our extrusions can be conductive, curved, dual durometer, flame retardant, flexible, food grade, frosted, high-temperature, thin gauge, or T-slotted.

Calpex Plastics works with a wide range of plastic materials, including:


  • ABS
  • Butyrate
  • Styrene
  • PVC Flexible
  • PVC Rigid
  • Polyethylene
  • Polypropylene
  • Polyurethane
  • Polycarbonate
  • Nylon
  • Noryl ®
  • PET
  • PETG
  • Acrylic Plastic
  • Butyl
  • High-Density Polyethylene (HDPE)
  • High-Density Polypropylene (HDPP)
  • Polyethylene (PE)
  • Polypropylene (PP)
  • Polyurethane
  • PVC
  • Thermoplastics
  • Urethanes
  • Vinyl
  • Viton


We offer the following extrusion products to our customers:


We can extrude tubing ranging from 1/16” to 4” in diameter. Our tubing solutions are crafted from a range of materials, and we also offer co-extruded striping and printing services.


We can extrude pipes in various sizes and shapes. We also provide pipe belling services.


Calpex can extrude profiles across a wide range of sizes and shapes. Our profiles include a wide range of bumpers, tracking, and clips.


Rods can be extruded in various sizes and with a range of materials. In addition, we offer co-extruded striping and coloring.

Spiral Wrap

We manufacture spiral wrap ranging from 1/8″ to 1″ in diameter, in a variety of pitch widths and colors. Spiral wrap is commonly used to provide a clean, protective harness when bundling wires.

Urethane Extrusions

We manufacture urethane extrusions of rod, profile and tubing. We also offer co-extruded striping and dual lumen tubing, and we manufacture coils covering a wide range of sizes.


We manufacture a range of plastic coils in various sizes and from a range of materials.

3D Printing Filaments

Calpex 3D Printing Filaments PLA, ABS and PETG

We design and manufacture ABS, PLA and PETG 3D Printing Filaments. Our filaments are designed and manufactured in USA for every maker. Whether you are looking for a manufacturing partner for your product, working on some personal projects, or you need a quick, affordable prototype before going to production, Calpex filaments are easy to print with and always reliable. PLA, or Polylactic Acid, is the most commonly used 3D printing filament in the industry, and is a great go-to filament for both beginners and professionals. Made from renewable resources.

Learn More

Calpex Plastics does business with partner companies across a wide range of industries, including:

  • Automotive
  • Electronics
  • Packaging
  • Recreational vehicle
  • Action sports
  • Toys
  • Water filtration
  • Irrigation
  • Building and construction

Calpex Plastics is a leading trusted partner in custom plastics extrusions. Our wide range of capabilities and available materials mean that we can provide you with the custom plastics extrusion services you require in the most timely and cost-efficient manner possible. For more information on our services, contact us or request a quote.