Thread sealing is achieved as the anaerobic adhesive cures when confined in the absence of air, and between close metal fitting surfaces. This technology is ideal for joints, which are considered to be dynamic due to vibration, changing pressures or changing temperatures.

When to Use a Thread Sealant

Designed for low and high pressure applications, thread sealants fill the space between threaded parts and provide an instant, low pressure seal. When fully cured, they seal to the burst strength of most pipe systems.

Typical Applications

Typical applications for thread sealants include sealing metal tapered pipe threads and fittings in the chemical processing, petroleum refining, pulp/paper, waste treatment, textile, utilities / power generation, marine, automotive and distribution industries. Thread sealers are also recommended for industrial plant and fluid power systems.

Advantages of LOCTITE® Thread Sealants

• Single-component – clean and easy to apply
• Do not creep, shrink or contaminate systems
• Can be used on any size of pipe fitting
• Replace all types of tape and hemp/paste sealants
• The seal resists vibration and shock loads
• Available with major agency approvals
• Protect mated threaded areas against corrosion
• Available with potable water and gas approvals
• Ensures complete contact between threads, 100% seal
• Designed for high- and low-pressure applications
• Has controlled strength for ease of disassembly

LOCTITE® 545 High lubricity thread sealant for locking and sealing metal pipes and small fittings with fine threads.
LOCTITE® 545 is a pipe thread sealant designed for locking and sealing of metal pipes and fittings. It is specially formulated to offer high lubricity for easy assembly and removal. Recommended for fine threaded fittings as used in hydraulic and pneumatic installations and small fittings in general. Suitable for fittings up to 50 mm in diameter including pneumatic and hydraulic fittings.

• Excellent solvent resistance
• ABSSM approved
• CFIA approved
• Contains no fillers or particles that could contaminate system fluids, foul valves, or clog fine filters and screens

FAQ
Q: If anaerobics cure in the absence of air, how come they don’t cure in the sealed bottle?
A: The anaerobic bottles are specially formulated oxygen-permeable polyethylene bottles that allow air to pass through the wall of the bottle to maintain stability of the liquid product inside the container. The bottle is also not filled to the top for stability purposes. A 10 ml bottle does indeed contain 10 ml’s of product in a larger bottle, and a 50ml bottle does indeed contain 50ml’s of product in a larger bottle.