On J. Herbin's literature, they state 7 seals per stick of supple wax, but I noticed I was getting more than that. I'm using a J. Herbin brass letter "G" (for Goulet!), which is probably average-small for all of the seals out there. I had a bunch of letters I was writing and I thought I'd grab the camera and time lapse the sealing I was doing to prove how many I could do.