I was wondering if anyone has used an epoxy biaxial cloth stringer before? I am using xps and wanted to hold the rocker shape, which I have lost in the past without a stringer. Without getting involved in a wooden stringer, I thought just gluing two halves with epoxy would hold it, but then thought that this might be too brittle. I’ve got some 9oz biaxial which I thought could work well as a faux stringer and give a bit more structural strength than just plain cloth, because it would behave like a trellis beam?
I cannot imgaine this planing or finishing out smoothly. I would expect it to be hard on your tools, too.
I’ve done it with carbon.
Expect little splinters in your fingers.
There is a company (Proline?) that does it with nylon
I’ve seen many types of material tried for stringers. PVC sheets, Lexan, fibeglass stringers, even impregnated cardboard. In the end, wood wins out for me. I like the esthetics of a triple stringer of redwood or cedar although a colored glue line is cool too.
ps. There is a point of being too stiff and too brittle.
i have done a bunch with a piece of bamboo veneer with a piece of glass cloth on either side. split the blank then glass each side of the blank and place the bamboo in between clamp together. works really well. shapes nice nad has good flex light weight. is a light tough on the hand planes. doesnt look as nice as a wood stringer. you will get some splinters - itching shaping! could do it without the bamboo like you are talking about. have fun wear long sleeves!