LOCTITE 263

Features and Benefits

Dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners.
LOCTITE® 263 is a red, dual cure, acrylic dimethacrylate ester fluorescent threadlocker designed for the permanent locking and sealing of threaded fasteners. It cures between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. It works on active metals (e.g. brass, copper) and passive substrates such as stainless steel and plated surfaces.
  • Designed for the permanent locking and sealing of threaded fasteners
  • Prevents loosening and leakage from shock and vibration
  • Particularly suited for heavy duty applications such as studs into motor housings where high strength is required
  • Provides robust curing performance
  • Offers high temperature performance and oil tolerance
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Technical Information

Agency Approvals / Specifications CFIA Listed, NSF/ANSI 61
Application Method Dispense Gun, Pressure
Applications Thread Sealing, Threadlocking
Color Red
Cure Type Anaerobic Cure
Fixture Time 10 min.
Fixture Time Temperature 10 °C
Full Cure Temperature 22 °C
Full Cure Time 24 hr.
Key Characteristics Corrosion Inhibiting, Disassembly: Disassembly with Heat, Fluorescent, General Purpose, Oil Tolerant, Primerless, Strength: High Strength
Number of Components 1 Part
Physical Form Liquid
Specific Gravity 1.1 g/l
Specific Gravity Temperature 25 °C
Substrates Metal
Technology Acrylic
Torque Break on M10 Steel 290 in./lb.
Torque Prevail on M10 Steel 290 in./lb.
Viscosity 400 - 600 mPa.s (cP) Brookfield
Viscosity Temperature 25 °C