That tungs. sheet is rubber impregnated with dust & is not very user friendly when it comes to tying it in, as almost any tight-ish thread wraps will slice straight though it, so forget about trying to wind it as well. You can layer it, but it needs to be coated with u.v. resin before trying to cover it with any other material. It cuts very easily with a scalpel & steel ruler on a hard surface. Would strongly recommend using a thread like UTC 140 with it's very flat section.