Leading Plastic Welding Manufacturers

There are plastic welding techniques that use an extra plastic strip to help connect the two separate pieces, while other methods melt an edge of each plastic part and push them together. After the plastic has cured (dried), a permanent, watertight seal remains. Only thermoplastics, those that are able to melt with the application of heat, are used for welding. Read More…

Plastic Welding Plastic welding is a plastic fabrication technique that bonds flat pieces of plastic together to form or repair many different products. There are several different methods of joining plastic parts at the seams, all of which use some sort of heat application.

We are accomplished plastic fabricators. The usability of our products is unmatched. We offer a plethora of secondary services for optional features. All of engineers are extremely thorough when creating these plastics. Your satisfaction is essential to us. You can count on us to give you exactly what you are looking for. Give us a call today to learn more information!

All Plastics and Fiberglass, Inc. $$$

At Park Plastic Products our main focus is manufacturing custom fabricated tanks from polypropylene and co-polymer. Chemical rinse tanks, dip tanks, anodizing tanks, tank liners, air purification tanks, drip pans and custom rolled polypropylene tanks are available to be built to your size and specifications.

Park Plastic Products $$$

Experts in unique custom plastic extrusion products and complex secondary fabrications, Northland Plastics specializes in custom plastic profile extrusions such as extruded plastic tubing, rigid plastic profiles and flexible plastic profiles. Call Northland Plastics, Inc. for all your extrusion needs.

Northland Plastics, Inc. $$$

Thrust Industries is committed to quality in everything it does, from its technical knowledge to its customer service. As a leading plastic fabricator, the entire team at Thrust is devoted to developing high-quality solutions for your business and delivering them exactly when you need them. Thrust has served the needs of customers across the globe for over 3 decades— become one of them today.

Thrust Industries $$$

Comco Plastics, Inc. offers precision machined plastic and custom fabrication including vacuum forming and plastic parts. We have highly skilled machinists and an array of CNC equipment available. Pellet to part manufacturing capabilities. From R&D to applications, we have the experience you need.

Comco Plastics, Inc. $$$
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placeholder image All Plastics and Fiberglass, Inc. Park Plastic Products Northland Plastics, Inc. Thrust Industries Comco Plastics, Inc.

These include polyvinyl chloride, high and low density polyethylene, polystyrene, polypropylene, polycarbonate and acrylic. Plastic welders usually use hot pressurized gas to melt the plastic together, but they also use ultrasonic vibration, lasers and friction. Many different parts are constructed by plastic welding, including tanks, containers like jugs and fuse-welded pipes. It is a similar process to metal welding, but it does not form as strong of a bond and is easier to accomplish. While the same type of plastics are usually welded together, different kinds can also bond together to form a single product.

There are five main methods of welding plastic parts together. Each technique uses a different approach but has similar results. The most popular and widely used is hot gas welding, where a welding gun releases hot, pressurized air and directs it on the pushed-together edges of the plastic parts.

Their molecular chains cross-link to form a single piece of plastic. While hot gas welding is highly effective, it takes large amounts of energy and is therefore inefficient. A plastic filler rod often aids this process. Ultrasonic welding, like its name suggests, generates heat with high frequency, low amplitude vibration, anywhere from 15 to 40 kHz.

It provides the fastest heat sealing and can go on for long periods of time. Friction/vibration welding takes the two separate pieces of plastic and rubs them together at a higher amplitude and lower frequency than ultrasonic welding. They are clamped together until cured. Hot plate welding is used to join two larger parts together, or those that have complex weld design.

Each plastic piece is attached to a platen of a press. A hot plate in the shape of the weld joint is moved over the two parts, melting the interfaces. The platens then press the pieces together and allow the joint to cool. Finally, laser welding uses an intense beam of light that moves along the joining line. This type of welding is for intricate joints, thin plastic pieces and for products that require the least visible seam possible.

Plastic Fabrication Power Pages

Plastic Fabrication

Plastic Fabrication

Plastic fabrication is the process of designing, manufacturing, and assembling a product made out of plastic material or composites that contain plastic. There are numerous plastic fabrication methods known today, considering the wide variety of products made out of plastic...

Plastic Materials

Plastic Materials

Plastic materials are objects artificially made from organic compounds called polymers along with other additive components. They possess excellent formability, making them extremely versatile for many different fabrication and manufacturing processes...

Blow Molding

Blow Molding

Blow molding is a type of plastic forming process for creating hollow plastic products made from thermoplastic materials. The process involves heating and inflating a plastic tube known as a parison or preform. The parison is placed between two dies that contain the desired shape of the product...

Plastic Extrusion

Plastic Extrusion

Plastic extrusion, also known as plasticating extrusion, is a continuous high volume manufacturing process in which a thermoplastic material -- in a form of powder, pellets or granulates -- is homogeneously melted and then forced out of the shaping die by means of pressure...

Rotational Molding

Rotational Molding

Rotational molding, commonly referred to as "rotomolding", is a plastic casting technique used to produce hollow, seamless, and double-walled parts. It uses a hollow mold tool wherein the thermoplastic powdered resin is heated while being rotated and cooled to solidify...

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Plastic channels are plastic products that have linear extruded profiles. They have a constant cross-sectional shape across their axis. They are long and narrow structures, and their depth is relatively short. These products serve a variety of functions and uses...

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