Weld-On 31 is a medium speed, 2-component (10:1) structural adhesive. It cures at room temperature to form high strength bond within minutes. In addition to excellent impact and fatigue resistance, this adhesive has gap-filling capabilities, excellent corrosion and chemical resistance. Once cured, Weld-On 31 maintains performance even in extreme temperature conditions, from -40º F (-40º C) to 180º F (82º C). UL 746C approval for use in electrical equipment assemblies for indoor and outdoor signage applications.