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Plastic Extrusions
  Plastic Angles
  Plastic Angle Covers
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  Plastic Tubes
    Plastic Custom Tubes
  Plastic Stock Profiles
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  Plastic C, J, U etc.
Plastic Extrusions Catalog
Guide to Extrusion Design
Aluminum U Channels
Plastic Injection Molding
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Color Options
In Stock
Color Matching
Plastic Sheet Fabricators
In-House Project / Tool Design
Color Matching
Screen Printing
Labeling & Packaging
Material Certification
In-Line, Secondary Fabrication
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CNC Capabilities
Customer Service
ISO Certification
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SeaGate Plastics has the plastic extrusion knowledge to meet your requirements

Learn more about what we manufacture.

1. Stock and Custom Profiles & Tubing
2. Connectors, Joiners & Edge Protectors
3. PVC Extrusions
4. Corrugated Components
5. Static Dissipative / Conductive Plastic Components

Our Stock Plastic Profile Catalog is available online: Click Below.
stock plastic profile catalog
Call Jay for a quote
(419) 878-5010

ex. Custom Plastic Slatwall Extrusion

Plastics extrusion is a high volume manufacturing process in which raw plastic material, usually in the form of pellets called resin, is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, custom profiles and plastic sheeting.

ex. Rigid PVC Profile

Plastic extrusion is a process that creates two-dimensional shapes (length providing the third dimension) such as tubing, edging, moldings and similar products in short sections or continuous lengths. Extruded products can be utilized as-is, or may be fabricated into more complex assemblies by punching, bending, forming and other techniques. Extruded products can provide a cost effective solution to your product fabrication and assembly needs.


Contact us to learn more via our form or Call Us (419) 878-5010

Seagate Plastics’ General capabilities...

  • In-house Product and Tool Design
  • Standard, Dual Durometer or Co-extrusion (combining two or more materials into a single extruded unit)
  • Color Matching
  • In-Line or Secondary Fabrication (cutting, coiling, drilling, laminating, punching, slitting, spooling, silk-screening, routing, and tape application)
  • Assembly
  • Labeling and Packaging
  • Material Certification

We have product development assistance and custom capabilities

Plastic Extrusions
ex. Custom Plastic Display Profile
Plastic Exturions
ex. Custom Plastic Dunnage
Plastic Profiles
ex. Plastic Angles

SeaGate Plastics specializes in cost-effective custom extrusions. Our product development experts will help turn your ideas into high-quality finished products.

Various appearance characteristics can be introduced into the custom profile extrusion with the addition of custom color concentrates, surface texturing and decorative film lamination. Co-extrusion of dissimilar materials in one profile can increase the functionality of the custom profile extrusion. The continuous nature of the extrusion process facilitates multiple part production from one generic custom profile extrusion design.

To request a quotation or to learn more about SeaGate Plastics capabilities and services please contact us today.

Seagate Plastics has the Stock Plastic Extrusion to meet your requirements. Stock Plastics Extrusion is a high-volume manufacturing process in which raw plastic material is melted and formed into a continuous profile. Custom Plastic Extrusion produces items such as pipe/tubing ,angles, C,H&J Channels, tracks  and guides.

In Stock Plastic Extrusion, raw thermoplastic material in the form of small beads is gravity fed from a top mounted hopper into the barrel of the extruder. Additives such as colorants and UV inhibitors are often used in Custom Plastic Extrusion and can be mixed into the resin prior to arriving at the hopper.

During Stock Plastic Extrusion, the material enters through the feed throat and comes into contact with the screw. Continuing the Stock Plastic Extrusion, the rotating screw forces the plastic beads forward into the barrel which is heated to the desired melt temperature of the molten plastic. In most Custom Plastic Extrusion processes, a heating profile is set for the barrel in which three or more independent PID controlled heater zones gradually increase the temperature of the barrel from the rear  to the front. This allows the plastic beads to melt gradually as they are pushed through the barrel and lowers the risk of overheating which may cause degradation in the polymer, and results in Stock Plastic Extrusion.

When conducting Stock Plastic Extrusion, extra heat is contributed by the intense pressure and friction taking place inside the barrel.. In most Stock Plastic Extrusions, cooling fans are present to keep the temperature below a set value if too much heat is generated. If forced air cooling proves insufficient then cast-in heater jackets are employed, and they generally use a closed loop of distilled water in heat exchange with tower or city water to complete the Custom Plastic Extrusion.

Continuing the Stock Plastic Extrusion, at the front of the barrel, the molten plastic leaves the screw and travels through a screen pack to remove any contaminants in the melt. The screens working with the Custom Plastic Extrusion are reinforced by a breaker since the pressure at this point can exceed 5000 psi. The screen pack/breaker plate assembly works with the Stock Plastic Extrusion and also serves to create back pressure in the barrel. This breaker plate and screen pack combination also does the function of converting "rotational memory" of the molten plastic into "longitudinal memory", creating a better Custom Plastic Extrusion.

Finished the Stock Plastic Extrusion, after passing through the breaker plate molten plastic enters the die. The die is what gives the final product its profile and must be designed so that the molten plastic evenly flows from a cylindrical profile, to the product's profile shape, creating a complete Stock Plastic Extrusion. Uneven flow at this stage would produce a product with unwanted stresses at certain points in the profile. These stresses can cause warping upon cooling after the Stock Plastic Extrusion. Almost any Custom Plastic Extrusion shape imaginable can be created so long as it is a continuous profile.


SeaGate Plastics offers a large selection of

Corrugated Plastic Components for:

Stock and Custom Plastic Connectors, Joiners and Edge Protectors / Protection

We Manufacture and Extrude: Custom, Rigid, and Flexible Plastic Trim, Plastic Borders, Plastic Framing, and Plastic Molding

Stock and Custom PVC Extrusions Manufacturer

Stock and Custom PVC Extrusions Manufacturer

Stock and Custom PVC Profiles Manufacturer

Stock and Custom PVC Profiles Manufacturer

Static Control & Conductive Plastic Components

Stock and Custom High Density Polyethylene (HDPE) Extrusion Manufacturer

Stock and Custom High Density Polyethylene (HDPE) Profile Manufacturer

Stock and Custom Polypropylene (PP) Profile Manufacturer

Stock and Custom Polypropylene (PP) Extrusion Manufacturer

Standard Plastic Profiles Extrusions

Stock and Custom High Impact Polystyrene (HIPS) Extrusion Manufacturer

Stock and Custom High Impact Polystyrene (HIPS) Profile Manufacturer

Industrial Plastic Profiles and Shapes