Application of Brady's Labels is very easy. Simply print the label, then put the label in place and cover with the clear polyester (B-966B) overlaminate. Brady B-423 is UL Recognized for Outdoor Use on glass, thermoset polyester plastic and polyvinyl fluoride plastic surfaces to support solar panel identification applications. Print Technology: Thermal transfer. Materials type: White polyester Finish: Glossy. white. Adhesive: Permanent acrylic. Recommended Ribbons: Brady series R6000, Brady series R6000HF (low halogen), Brady series R4400 (colors - red, blue, green, white), Brady series R4900 and R6200 (alternates). Regulatory/Agency Approvals: UL: B-423 is a UL Recognized Component to UL969 Labeling and Marking Standard when printed with Brady Series R6000 and R6000HF ribbons. The Brady Series R4900 ribbon is also UL approved. CSA: B-423 is CSA Accepted to C22.2 No.0.15-95 Adhesive Labels Standard when printed with Brady Series R6000 ribbon. See CSA file 041833 for specific details. CSA information can be accessed online at directories.csa-international.org. DIN VDE 0472 Part 815: Brady B-423 meets requirements of a halogen-free material per DIN VDE 0472 part 815. (Statement based on review of product construction and confirmation halogen content test run at an independent test laboratory.) Brady B-423 is RoHS compliant to 2005/618/EC MCV amendment to RoHS Directive 2002/95/EC.