A na-eme okirikiri silk nke Benson bụ nke sitere n'okike na enyi na gburugburu ebe obibi PVC resin dị elu, site na mgbaze na extrusion dị elu, akpụzi ya ka ọ bụrụ eriri silk jikọtara na nkwado PVC, mgbe ọtụtụ usoro mara mma.Ngwaahịa a etinyebeghị paraffin wax oxidized, nke na-emerụ ahụ ike, yana ahụike na enweghị isi.Iberibe na ngwaahịa ndị a tụfuru bụ resin thermoplastic enwere ike ịmegharị ya.