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No. All CHANCE® cutouts use a synthetic liner material. Some of our competitors use bone fiber. We use synthetic liner material as the studies we have conducted show more consistent arc quenching than bone fiber. Bone fiber is susceptible to water absorption which can cause swelling and delamination of the liner. This may prevent fuse holder drop out as the swollen liner may bind the fuse link not allowing it to free itself from the fuse holder.
