- 5 leading manufacturers
- 32 additional suppliers
- 18 states and provinces
- 16 related categories
- 1 guide section
Plastic Welding Manufacturers and Companies
IQS Directory is a top industrial directory listing of leading industrial plastic welding companies and suppliers. Access our comprehensive index to review and source plastic welding companies with preview ads and detailed product descriptions. These plastic welding companies can design, engineer and provide plastic welding services to your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these plastic welding companies and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. We are the right resource for your information requirement whether its for a manufacturer of flat plastic welding, plastic welding repair, plastic seam welding.
Suppliers located in PA, OH, NY +15 more states
Contents (4 sections)
Leading Plastic Welding Manufacturers
Showing all 5
Certification, declaration and ownership records are on file for 1 of 5 suppliers in this list, from supplier reports IQS reviewed. A supplier without one listed may still hold it.
| Placement No. | Manufacturer | Location | Contact | Actions | |
|---|---|---|---|---|---|
| 1 | All Plastics and Fiberglass, Inc.Our plastic fabrication systems are made from the markets highest quality innovations. The plastics we design are integrated with the best materials available. It is our goal to be your stress-free provider of plastic products. Just let us know your application and we can handle the rest! We create pre-tested plastics to ensure the durability and flexibility. Visit our website to learn more! | Mobile, AL | |||
| 2 | Northland Plastics, Inc.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. | Sheboygan, WI | |||
| 3 | Thrust IndustriesWe are a global supplier of plastic solutions. Our company takes pride in saying we are ISO 9000:2008 certified. We have set the standard of creativity and productivity in our industry. Our plastic fabrication systems are designed to improve your facility and work zones. As a leading developer we wish to create the most affordable solutions. Please visit our website to learn more information! | Evansville, IN | |||
| 4 | Ametco Manufacturing CorporationAt Ametco Manufacturing Corp., we take pride in shaping durable, high-performance plastic components that support a wide range of industrial and architectural needs. We approach every project with the same commitment to precision and reliability, drawing on decades of material expertise and a deep understanding of how engineered plastics behave in demanding environments. | Willoughby, OH | |||
| 5 | Hi-Rel Plastics & MoldingAt Hi-Rel Plastics & Molding, we provide plastic fabrication solutions for customers that require dependable components, assemblies, and custom plastic products manufactured to precise specifications. Our company works with a variety of plastic materials and fabrication methods to support applications across industrial, commercial, and specialized markets.
Hi-Rel Plastics & Molding states: EU RoHS (Supplier-reported, reviewed Sep 2026), EU REACH (Supplier-reported, reviewed Sep 2026), Small Disadvantaged Business (Supplier-reported, reviewed Sep 2026), Minority-owned business (Supplier-reported, reviewed Sep 2026) | Riverside, CA |
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Leading plastic welding manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Plastic Welding Companies
The category’s other plastic welding companies are listed on their own page, with location, phone and website where each supplier provides them.
View 32 Additional Plastic Welding CompaniesDo not see your company listed in Plastic Welding?
Engineers and buyers use this page to find plastic welding suppliers. Add your company to the Plastic Welding listings so they can find you too.
List Your Company- Listed in the Plastic Welding directory
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Quick Answers
- How many plastic welding manufacturers are listed on IQS Directory?
- 5 leading manufacturers and 32 additional suppliers.
- Where are plastic welding manufacturers located?
- The listed suppliers are in 18 states: Pennsylvania (8), Ohio (4), New York (3), Wisconsin (3), California (2), Illinois (2), Indiana (2), Massachusetts (2), and 10 more.
- How do I get quotes from plastic welding suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
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.
Plastic Welding Processes
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.
The thermoplastics used for welding include:
- Polyvinyl Chloride
- High and Low Density Polyethylene
- Polystyrene
- Polypropylene
- Polycarbonate
- 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.
These are the five main methods of welding plastic parts together:
- Hot Gas Welding
- Ultrasonic Welding
- Friction/Vibration Welding
- Hot Plate Welding
- Laser Welding
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 products that require the least visible seam possible.