Novoloid consists of hardened phenol aldehyde fibers, which are produced by acid catalyzed cross-linking of melt-spun novolac resin. They form a fully cross-linked, three-dimensional, amorphous “network” polymer structure. The fibers contain approximately 76% carbon, 18% oxygen and 6% hydrogen. Due to their basic chemical structure, novoloid fibers are non-melting and have a very good resistance to almost all acids and alkalis. The very low shrinkage and no melting maintain the structure of the fiber and offer very good insulation due to low thermal conductivity. The fiber has a very soft feel and a comparatively high moisture recovery.
