Loctite 263 High-Strength Red Threadlocker, 6 mL Primerless Liquid Adhesive for Permanent Thread Locking

Loctite 263 High-Strength Red Threadlocker, 6 mL Primerless Liquid Adhesive for Permanent Thread Locking

• The Loctite 263 High-Strength Red Threadlocker is a primerless, anaerobic adhesive formulated to permanently lock and seal threaded fasteners in automotive, industrial, and machinery applications. It prevents loosening and leakage caused by vibration, heat, and heavy mechanical loads.
• Features:
  • High-strength locking formula designed for heavy-duty assemblies such as engine bolts, motor housings, and pump fasteners.
  • Primerless technology enables use on all metals including stainless steel, aluminum, and plated surfaces.
  • Oil-tolerant chemistry ensures consistent curing even on lightly contaminated or uncleaned fasteners.
  • Temperature resistant up to 360°F (182°C) for reliable performance in demanding environments.
  • Permanent locking strength—disassembly requires the use of localized heat for removal.
• Specifications:
  • Manufacturer: Loctite
  • Part Number: 2203451
  • Product Name: Loctite 263 High-Strength Red Threadlocker
  • Size/Capacity: 6 mL tube
  • Color: Red
  • Cure Type: Anaerobic (single-component)
  • Temperature Range: Up to 360°F (182°C)
  • Breakaway Torque (M10 steel bolts): Approximately 290 lbf·in (33 N·m)
  • Application: Permanent thread locking and sealing of bolts, studs, and nuts exposed to vibration and shock
• The Loctite 263 Threadlocker can also be referred to as red high-strength threadlocker, permanent thread locking compound, vibration-resistant thread sealant, anaerobic fastener adhesive, and Loctite 263 Red Threadlocker.

Loctite is a global leader in adhesives and sealants, known for high-performance bonding solutions for automotive, industrial, and maintenance applications.

Q: What is Loctite 263 used for?
A: It is used to permanently lock and seal threaded fasteners, preventing loosening caused by vibration, shock, or thermal cycling in automotive and industrial assemblies.

Q: Can Loctite 263 be applied to oily or lightly contaminated fasteners?
A: Yes. Its primerless, oil-tolerant formulation allows application to lightly oiled or as-received fasteners without additional surface preparation.

Q: How can a fastener treated with Loctite 263 be removed?
A: To remove a permanently locked fastener, apply localized heat of approximately 500°F (260°C) before using standard disassembly tools.