* TLR-1 competes with Loctite 242/243* TLR-2 competes with Loctite 262/263* Compatible with steel, aluminum, and carbon* Oil tolerant* Not recommended for titanium fasteners* Park Tool AP-1 Adhesive Primer must be used to prep all components, fasteners, and carbon surfaces prior to application, failure to do so could result in permanently bonded parts.* -01: Blue, Medium; -02: Red, High