In my previous wig styling walk-through, I demonstrated curling a wig using a low-temperature curling iron. However, there are several other methods to curl wig fiber that could be considered “safer” (i.e., less likely to accidentally melt your wig). The hot water method — a.k.a. “poster-tubing” — is one of them.
I’m curling about 18″ of synthetic hair here. I coil the section of hair fiber tightly around the dowel rod, taping it at both ends. (Note: The hot water may cause the adhesive tape to peel off; if this happens, use a heat-safe implement such as a wooden spoon to hold the end of the hair in place as you continue pouring the water.)
The section I am curling is relatively small, once coiled. To curl a full wig, prepare the entire wig for curling at once, so you don’t risk un-curling parts of it while curling others. (If curling a full wig, it’s a good idea to test a small section of your wig fiber before subjecting the whole wig to heat, so you don’t accidentally overheat the wig and damage the fiber.)
When the water boils, take it off the heat and let it cool for a couple of minutes. Ideal curling temperature is somewhere around 170 or 180 degrees Fahrenheit. Don’t use boiling water; 212 degrees is hot enough to melt some synthetic fiber. While the water is cooling, you can arrange your pan, pot holder, wooden spoon or whatever else you’re using.
Let the fiber dry completely, and then carefully peel it off of the mold. You should have bouncy curls!
If for some reason the hair didn’t curl, it may mean that your water wasn’t hot enough, or that you didn’t pour water over the hair long enough. If you’re using a small pan that won’t hold enough water for your wig, try pouring the heated water back over the hair a couple of times, pouring from one pan to another. The water will cool slightly each time you pour it, but it should still be hot enough to style the wig.