Permanent Polyester (B-423) is ideal for electronic PCB and component identification, bar code labels, rating plates and solar panel identification. Harsh Environment Multi-Purpose Polyester Labels with Ribbon for M210 M211 BMP21-PLUS Printers - 0.75" Harsh Environment – High-tack permanent adhesive for a variety of surface types in all-weather applications Engineered Performance – Resists exposure to UV light, extreme temperatures, abrasions, fuel and oil, degreasers, cleaners, and detergents Certifications – UL Recognized to UL969, CSA to C22.2 No. 0.15-95, RoHS compliant to 2011/65/EU (Pass 2015/863), DIN VDE 0472 Part 815 For material specific performance and properties, please refer to the Technical Data Sheet (TDS) Harsh environment applications require tough materials and Brady’s B-423 polyester stands up to the challenge. Designed to handle the rigors of renewable energy applications, this material is ideal for a wide variety of difficult surfaces in an array of environmental conditions.