White Polyvinyl Fluoride Label. Durable B-437 Top coated Polyvinyl fluoride material is used most frequently in wire and cable identification applications where self-extinguishing features are required. White or yellow labels feature a matte finish and are thermal transfer printable. This material utilizes a permanent acrylic adhesive and has excellent resistance to water, oil and other common fluids. Meets the requirements of MIL-M-87958, Pressure Sensitive Adhesive Wire or Cable Marker and Identification specification. RoHS compliant to 2005/618/EC MCV amendment to RoHS Directive 2002/95/EC; UL approved; CSA accepted.