Mastars Plastic Extrusion
We specializes in developing custom extrusions to match your needs. We can take you from prototype lengths to production volumes. Our Fast-Track quote process allows us to get you a quick quote response. Multi-durometer and multi-color plastic extrusions are available.
Fast & Accurate
Our Extrusion Prototyping Program can be quoted quickly from your 3D Solid models or PDF files. First articles are available within 2-4 weeks.
Mastars Plastic Extrusion Specifications
We can manufacture custom plastic profiles up to 22 1/2″ wide and 7″ tall. We also have the capability to extrude custom plastic tubing up to 4 inches round. We can hold tolerances of 0.010″ or better which exceeds most industry standards.
- Taping Heat
- Hot Stamping
- Solvent Bonding
- Sawing & Slotting
- Sealing & Cutting & Gluing
- Punching & Coiling & Routing
- Routing & Mitering & Embossing
Mastars can extrude materials:
- Rigid PVC
- ABS & FPVC
- Polycarbonate & Polystyrene (HIPS)
- Other Materials – By request
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Popular FAQs About Plastic Extrusion
What is Plastic Extrusion
The process of extrusion involves melting raw plastic into a continuous profile. Among the items produced by extrusion are pipe/tubing, weatherstripping, fencing, deck railings, window frames, and film and sheeting made from plastics, thermoplastic coatings, and wire insulation.
The Main Components of Extruders
- Raw plastic material is held and fed by a vacuum or manual hopper.
- The plastic is pushed through a long barrel with a mechanism resembling the functioning of a screw.
- External heaters to ensure the barrel remains at the desired temperature.
- A die used in manufacturing plastic parts to create its profile.
Benefits of Plastic Extrusion
Extruding plastics is a more economic method of creating plastics than other processes because it can produce a high volume output in a continuous process. A low tooling cost is another advantage.
For parts requiring consistent wall thickness, as well as for profiles that are broader and longer, plastic extrusion works excellently.
The Plastic Extrusion Process
Step 1: Granules, pellets, and powders of raw plastic are loaded into a hopper before proceeding to an extruder, a long, heated chamber. A revolving screw propels it through this chamber. One or two revolving screws can be found in some extruders.
Step 2: The raw materials are conveyed from the hopper to the feed trough, through which they flow to the large rotating screw inside the horizontal barrel
Step 3: Material properties differ among individuals, so a particular heating temperature needs to be applied based on the kind of raw material being processed. As the molten plastic exits the heated chamber, it is forced into a small hole called a die, which produces the finished form.
Step 4: Plastic that has been extruded from a die is fed onto a conveyor belt to cool. Air or water can be used to cool. Unlike injection moulding, this process involves forcing melted plastic through a die rather than putting it in a mold.
Step 5: Each plastic profile has its own die that allows the plastic to flow smoothly and evenly into the final profile shape from the cylindrical profile of the extruder. To produce an end product with integrity, this flow must be consistent.
Different Types of Plastic Extrusion
- Tubing Extrusion
- Blow Film Extrusion
- Sheet Film Extrusion
- Over Jacket Extrusion