Technically speaking, extrusion is a technique used to manufacture profiles of a given shape. Extruded aluminium profiles are all around us, and so are plastic profiles.
In fact, extruded plastic profiles are quickly replacing a number of traditional materials such as wood and metal, because they are easier to handle and have fabulous properties such as lower costs, low weight, recyclability, non-conductivity and so forth.
An extruder melts and transports plastic through a molding tool, a nozzle, which determines the shape and thickness of the product. The product is then cooled immediately in water or by air, and cut into pre-programmed lengths.
Extrusion is an automated process with continuous dimension checks and automatic machine adjustment, making it possible to produce anything from simple tubes and rods to extremely complex window profiles in an astonishing variety of shapes and sizes.
Most types of plastic can be extruded, and it's possible to use several different plastic types in the same production process. This is known as co-extrusion. In co-extrusion, two or more extruders are used to pass different types of plastics in different layers through the extrusion head. At Primo we use co-extrusion e.g. in the manufacture of glazing strips with integrated sealing strips.
The plastic can also be extruded around other products, such as conducting or stabilizing materials. Also, Primo can perform a variety of finishing work on plastic products such as application of film, barcode printing, bending, etc. Finishing work can also include drilling, folding, welding, gluing and more.
At Primo, we know all about plastic extrusion. Whatever you may want made, we’re there for you with our expertise and passion for extrusion.