![]() ![]() ![]() For example, heat guns are often used for shrink wrapping electrical cables, and in that case slow heat is better. If the temperature stays the same but the airflow is raised, then the gun will weld faster. An airflow of 1 l/min is roughly equal to a quarter gallon per minute. Airflow often is given in liters per minute (l/min). With heat guns, performance is a combination of the temperature generated and the airflow. Airflow and TemperatureĪirless plastic welders have either a single heat setting or variable settings. Hot air is a less efficient way to transfer heat, so the guns need to generate more energy to overcome this. Heat guns have a much higher wattage rating than airless welders, typically 1,500W or more. The higher the wattage, the less noticeable this heat drain will be, and the faster the user can achieve a weld. The difference is that the 80W model would take longer to heat up and would work more slowly.Īs the tip comes into contact with the plastic to be melted, some of the heat dissipates. For example, an 80W airless plastic welder and a 200W airless plastic welder might both be capable of reaching 500 degrees Fahrenheit or more. This should not be confused with how hot they get. PowerĪll plastic welders have a wattage (W) rating that describes the amount of power generated. The term describes the motion of moving the tip back and forward across the area in a swinging, or pendulum, motion. Pendulum welding is a process used with heavy-duty plastic welding, when parts require considerable heat buildup to weld them together successfully. A plastic welding rod is fed into the tip, right where the heat is focused, and melts into the joint as the user moves the gun along. Speed welding tips are particularly good when joining two seams together. The area can then be smoothed over to conceal the staple. However, in plastic welding, specific tack welding guns can insert a metal staple between the pieces to be repaired, thus providing a strong joint. Tack welding is usually considered a small temporary weld to hold two pieces together until the full weld forms. There are a number of terms used to describe plastic welding techniques and the tool’s welding tips that might be confusing. However, both are industrial processes found only in factories and laboratories. Ultrasonic and friction welding both work by vibrating plastic components very fast, developing heat that bonds them together. Plastic welding rods can be used with mesh or foil to create strong repairs. Basic models have a single heat setting, though better tools are variable. A handle with a rod attached delivers heat to a metal tip. They can be used directly on plastics, or plastic welding rods may be melted into joints or cracks.Īirless plastic welders are similar in design to a soldering iron used for electrical work. The tools come with various attachments to spread or focus the hot air, so the heat guns are quite versatile. They melt plastic by delivering a stream of hot air. Plastic welders fall into four general categories: heat guns, airless (or contact), high-frequency, and friction welders.Ī plastic welding gun typically looks a lot like a small hair dryer, though some have tubular shapes. Much like when looking for the best welders for beginners at metalwork, buyers should know that some tools are more user-friendly than others as beginners learn how to weld plastic, and some are more suited to professional tasks. There are dozens of plastic welders on the market, so it’s important to understand their capabilities in order to make the right choice. Photo: What to Consider When Choosing the Best Plastic Welder BEST FOR SEAMS: BeyondLife 1600W Plastic Hot Air Welder Heating Gun.BEST FOR SMALL REPAIRS: Bondic Pro UV Resin Kit Liquid Plastic Welding Kit.BEST AIR GUN: Seekone Heat Gun 1800W Variable Temperature Control.BEST AUTOMOTIVE: Allturn 100W Hot Stapler Plastic Welding Repair Kit.BEST HOME AND LEISURE: JounJip Plastic Welding Repair Kit | 120 Volts.BEST BANG FOR THE BUCK: TruePower Plastic Welding Kit With Plastic Rods.BEST OVERALL : Polyvance Mini-Weld Model 7 Airless Plastic Welder. ![]() We also provide real-world examples that represent the best plastic welders for a variety of jobs at home and at work. In this article, we explain the key features of each machine. Shoppers can choose from among several types and should consider different levels of performance. Unlike glue repairs, which often crack if the plastic flexes, a properly formed weld is strong and permanent.īut while most plastic welders are easy to use, they don’t all do the same jobs. In many cases, these welders will soon pay for themselves. Plastic welders can fix broken garden furniture, toys, kayaks, car bumpers, and a whole host of other items. ![]()
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