This company's adhesives have received Underwriter Laboratories certification for use in sign-bonding applications listed under UL Specification 746C -- Standard for Polymeric Materials -- Use in Electrical Equipment Evaluations. The adhesives certified include MA300, MA820 and AO420. Each adhesive has been proven to effectively bond a variety of substrates, including steel, aluminum, fiberglass and ABS plastics across a range of temperatures. Circle No. 156