The 3M BL117M29BW is an industrial black liquid electrical tape designed for use in industrial and outdoor applications. It is an acrylic-based, pressure sensitive tape that provides quick, water-resistant electrical insulation and is suitable for use on breaker boxes, control boxes, rack systems, conduit and other electrical and cable assemblies. The tape is flame retardant and UV resistant, making it ideal for long term outdoor applications. It features a flame retardant adhesive and a dielectric strength of up to 700 volts for greater protection. The black finish helps blend into dark surfaces, ideal for discreet applications.