Thread burners, zappers and sealers are great tools to have when working with thread and cord. They work with synthetic cord & thread, such as nylon, and silk. When used to cut, they cauterize the ends and keep them from unravelling. When used to melt and to fuse the ends they prevent the final knots from getting untied. It is best to let the cord melt and to push the melted end against the knot rather than melting the knot itself. These tools are so much more precise than a cigarette lighter. They are a necessity for making Shambhala bracelets with Chinese Knotting Cord and for sliding square knot closures.
Hottest to Cooler - Cord Zap, Super Max Burner, Ultra Zap, Zap II
The Cord Zap & Super Max Burner gets red hot immediately. The other burners do not get as hot and take longer to reach their highest temperatures. The Ultra Thread Zap gets hotter faster than the Thread Zap II, but a smaller area of the tip gets red.
Tips Sizes - Smaller to Larger - Ultra Zap, Super Max Burner, Zap II & Cord Zap
Ergonomics - Most comfortable first - Ultra Zap, Super Max Burner, Zap II & Cord Zap
Best Features - Cord Zap & Super Max for red hot tip. Ultra Zap for retractable tip. Zap II for best price.
For safety, remove the battery or the tip when storing. Keep away from children.
These tools work well when finishing a limited number of thread as each individual thread or cord needs to melted one at a time.
May leave discoloration especially with light colored thread or cord.
Change the batteries often and let the tip cut or melt without forcing to keep the tip from getting damaged.
And foremost be careful not to melt or burn your work!
I tested these tools with new alkaline batteries (same brand and quality level), 2 AAs in the Super Max Burner & Cord Zap, 1 AA in the Thread Zap II and 2 AAAs in the Ultra Thread Zap. > Read more in blog post comparing brands and see larger pictures