Hot-air Welders
One of the major advantages of thermoplastic membranes is their heat weldability. One of the characteristics of thermoplastic is that when heated sufficiently, the material temporarily changes from a solid to a semi-solid state, enabling the sheets or panels to be fused together and return to a solid upon cooling. Thus, a monolithic (continuous) membrane is created.
Sika Sarnafil is the only membrane manufacturer that designs and produces it own hot-air welding machines. For the most reliable and permanent seam welding, Sika Sarnafil’s authorized applicators use a Sarnamatic hot-air welder.
For smaller, hard to reach areas or for use around details, a hand-held hot-air welder is used.
How hot-air welding works:
Heated air is blown into the seam area, causing the membrane surfaces to melt. A roller and the weight of the machine then presses the two sheets of membrane in the overlap together. As the welder moves away from a given seam location, the membrane quickly cools down to ambient temperature and the heat weld is completed, providing a watertight, permanent bond. In fact, the welded seam is stronger than the surrounding membrane.
Sarnamatic 661 SpeedWeld – the new dimension in automatic welding
As successor to the well-proven Sarnamatic 641 mc, the Sarnamatic 661 SpeedWeld boasts some extraordinary features. In fact, it sets a whole new standard for reliability, safety, and convenient operation.
| Reliable Results |
| Protection against voltage fluctuations |
| Error messages displayed as text |
| Field replaceable parts |
| Easy to Use |
| Large easy-to-read display screen |
| Simple menu operation |
| Compact and light for easy handling |
| Clear, easy-to-understand error messages |
| Welding parameters for different Sarnafil membranes are stored in memory |
| Versatile |
| Adjustable nozzle unit for perimeter edge welding |
| Adaptable to double-weld welding (Sarnafil Express) |
| Adaptable to Décor Profile welding |
| Quality Welding |
| Vertical, free-floating nozzle and pressure wheel that automatically compensate for substrate irregularities |
| Advanced air trap for crease-free and wrinkle-free seams |
| Narrow nozzle and pressure wheel provide a consistent weld over a variety of substrates |
| Customer Support |
| Service and support are important considerations in your selection of a hot-air welding machine. Sika Sarnafil understands how critical it is that your equipment work correctly |
| On-site Support |
| Sika Sarnafil field technicians are available for training and on-site support. The interchangeable parts on the Sarnamatic 661 SpeedWeld also allow your staff to quickly and easily service the welder on-site, minimizing worker downtime |
| Factory Service |
| In the event that your Sarnamatic 661 SpeedWeld needs factory service, our Sarnamatic Service Department will provide quick and efficient service. Every Sarnamatic 661 SpeedWeld carries a two year limited warranty, one of the longest in the industry |
| Customer Support |
| Service and support are important considerations in your selection of a hot-air welding machine. Sika Sarnafil understands how critical it is that your equipment work correctl |
| On-site Support |
| Sika Sarnafil field technicians are available for training and on-site support. The interchangeable parts on the Sarnamatic 661 SpeedWeld also allow your staff to quickly and easily service the welder on-site, minimizing worker downtime |
| Factory Service |
| In the event that your Sarnamatic 661 SpeedWeld needs factory service, our Sarnamatic Service Department will provide quick and efficient service. Every Sarnamatic 661 SpeedWeld carries a two year limited warranty, one of the longest in the industry |
The Handheld Hot Air Welder
A hand-held hot-air welder is used mainly for seams at details. The Triac welder comes equipped with a 40 mm and a 20 mm wide welding nozzle and a pressure roller. With a digital display of set and actual temperatures, the Triac hand-held welder provides optimum welding results.
