The TRIAC ST from Leister is a handy, lightweight heat gun primarily used as a profiling tool for welding and processing plastic membranes, as well as shrinking and molding various thermoplastics. Its two-sided air filters can be easily removed and cleaned. This ensures an optimal air supply and maximum performance. As a successor of the TRIAC S, the ST combines a new, highly robust engine with current technology and modern design in a robust and efficient welding tool.
Compared to the design of others, this proven bar-style heat gun enables welding above the head, on the floor and in narrow areas. The ergonomic, two-component handle and its optimized center of gravity provide an ideal grip, even for longer periods of use and under difficult conditions. When in use, the actively cooled, protective tube ensures continuous safety by protecting against burns. The carbon brake also protects the heat gun from overloading.
The TRIAC ST features 100% Swiss-made quality and is compatible with more than 80 nozzles.
Roofers Mart is an authorized dealer of Leister parts and equipment. We have a Leister technician on staff to help you with repairs and answer your questions, and we maintain an inventory of several of the company's most popular roofing tools and robots. If we don't have what you want, we can order it for you directly from Leister.
- Professional heat gun weighing less than 1 kg (2.18 lbs)
- Made in Switzerland
- Ergonomic, two-component handle
- Reliable constant welding power
- Developed for ...

- Designed for construction site
- Cool-down function
- Restart protection enables safety at work
- Configurable Eco-Mode
- Voltage level indicator

- Professional heat gun weighing less than 1 kg (2.18 lbs)
- Robust heat gun – made in Switzerland
- Ergonomic, two-component handle
- Developed for tough construction site use
- More than 80 attachment nozzles available
Roofers Mart is an authorized dealer of Leister parts and equipment. We have a Leister technician on staff to help you with repairs and answer your questions, and we maintain an inventory of several of the company's most popular roofing tools and robots. If we don't have what you want, we can order it for you directly from Leister.
Leister TRIAC AT/ST
Leister's ergonomic VARIMAT roof welding machines offer everything needed for welding roof membranes.
VARIMAT 700
- High welding reliability due to more contact pressure
- Tracking accuracy thanks to variable transport axis
- Nozzle swivel-in mechanism for fast insertion
- Visual alarm when leaving the welding window
- Flexible voltage, choose between 230 and 400 V
VARIMAT 500
- Ergonomic welding due to high contact pressure
- Keeps track due to flexible transport axis
- Reliable insertion of the nozzle
- Warning signal for undervoltage for quality assurance
- Easy conversion to 230 or 400 V
VARIMAT 300
- Upright welding due to increased contact pressure
- Stays on track thanks to movable transport axle
- Easy insertion of the nozzle
- Clear display for intuitive operation
- Work without obstacles due to optimal cable routing
Roofers Mart is an authorized dealer of Leister parts and equipment. We have a Leister technician on staff to help you with repairs and answer your questions, and we maintain an inventory of several of the company's most popular roofing tools and robots. If we don't have what you want, we can order it for you directly from Leister.
Leister VARIMAT 300/500/700
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