Kevlar twisted cord is the best material for sewing edges of flat wick or finishing the ends of kevlar Rope. It can be hand sewn with a curved carpet needle. This is better to use than thread as it will not burn though as easily. When using thread or cord for sewing or attaching wick, carfeul inspections need to be done before each use to make sure the cord has not burned or abraded away.
Diameter 1/16 inch (1.6mm) feet per pound 875
Diameter 3/32 inch (2.38mm) feet per pound 510
Diameter 7/64 inch (2.77mm) feet per pound 435
Diameter 1/8 inch (3.2mm) feet per pound 320
Temperature rating 650 degrees F
Feet per pound plus or minus 10%
the wick last longer. If you use lamp oil the prop will run much cooler
than if you use white gas.