SeaGate Plastics has decades of design, engineering, and manufacturing experience to meet your needs

Material Types

tube covers.jpeg
welt cords.jpeg
round tube covers.jpeg
dunnage shapes.jpeg
angle covers.jpeg
z bars.jpeg
oval tubes.jpeg
square tubes.jpeg
flat strips.jpeg
misc shapes.jpeg

Request a Custom Quote

The Plastic Extrusion Process Simplified:

Plastic 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.

Our company uses plastic extruders to create many different products for our suppliers. It is a high-volume manufacturing process in which raw plastic is melted and formed into a continuous 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 they may be fabricated into more complex assemblies by punching, bending, forming, or other techniques. Extruded products can provide a cost-effective solution to your product fabrication and assembly needs.

For over 34 years, SeaGate Plastics has specialized in cost-effective plastic 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. Co-extrusion of dissimilar materials in one profile can increase the functionality of the custom profile extrusion.


ex. Rigid PVC Profile


ex. Custom Plastic Display Profile


ex. Custom Plastic Dunnage


ex. Plastic Angles