Pro Seal Blue Removable Threadlocker – Medium Strength, 6 mL

Secure threaded fasteners while still allowing future disassembly with Pro Seal Blue Removable Threadlocker. This medium-strength anaerobic threadlocker helps prevent nuts, bolts, and screws from loosening while allowing properly assembled fasteners to be removed later with hand tools.

The blue liquid cures when confined between assembled metal threads, making it useful for repair, maintenance, automotive, power tool, equipment, and general mechanical applications where vibration or movement could cause threaded connections to loosen.

Features & Benefits

• Medium-strength blue removable threadlocker

• Anaerobic formula cures between assembled metal threads

• Helps prevent threaded fasteners from loosening

• Removable with hand tools

• Suitable for fasteners up to 3/4" diameter

• Helps prevent galling and corrosion of threads

• Resistant to gasoline, antifreeze, transmission fluid, and oil

• Temperature range from -65°F to 300°F (-54°C to 150°C)

• Compact 6 mL bottle

• Made in the USA

Specifications

Helps Keep Fasteners Secure

Threaded fasteners can gradually loosen when exposed to vibration, repeated movement, or normal equipment operation. Pro Seal Blue Threadlocker is applied to the threads before assembly to help keep the completed connection securely locked in place.

Because this is a removable-strength formula, it provides thread-locking performance without creating a connection intended to be permanent. This makes it particularly useful for components that may need to be serviced, adjusted, or disassembled in the future.

Anaerobic Threadlocking Formula

Unlike conventional glue, this product is specifically formulated for threaded metal fasteners.

The anaerobic formula cures after assembly when it is confined between mating metal threads. Once cured, it helps lock and seal the threaded connection while also helping protect the threads against galling and corrosion.

Resistant to Common Automotive Fluids

Once properly cured, the threadlocker provides resistance to several fluids commonly encountered around mechanical and automotive equipment, including:

• Gasoline

• Antifreeze

• Transmission fluid

• Oil

This makes it useful for a variety of maintenance and repair applications where threaded connections may be exposed to these fluids.

Removable for Future Service

Blue threadlocker is a practical choice when a fastener needs additional security but may still require future removal.

The medium-strength bond allows assembled fasteners to be removed with hand tools, making it suitable for serviceable components where permanent-strength threadlocker would be unnecessary.

Typical Applications

Pro Seal Blue Threadlocker can be used for appropriate threaded fasteners in applications such as:

• Carburetor screws

• Valve cover bolts

• Water pump bolts

• Thermostat bolts

• Rocker arm adjustment nuts

• Power tools

• Mechanical equipment

• Repair and maintenance projects

• Threaded fasteners exposed to vibration

How to Use

Apply the threadlocker to the threads before assembly, then assemble the fastener normally. The anaerobic formula cures within the assembled threaded connection.

For best results, mating threads should be properly prepared and the product should be used according to the manufacturer's instructions.

Frequently Asked Questions

What is blue threadlocker used for?
Blue threadlocker helps prevent threaded fasteners from loosening due to vibration and movement while still allowing them to be removed later for service.

Is this a permanent threadlocker?
No. This is a medium-strength removable threadlocker designed so properly assembled fasteners can be removed with hand tools.

What size fasteners can it be used on?
It is intended for threaded fasteners up to 3/4" in diameter.

What temperature range can it withstand?
The specified temperature range is -65°F to 300°F (-54°C to 150°C).

Is it resistant to oil?
Yes. The formula is resistant to oil as well as gasoline, antifreeze, and transmission fluid.

Does it help prevent corrosion?
Yes. The threadlocker helps prevent galling and corrosion of threaded connections.

How does the threadlocker cure?
It is an anaerobic formula that cures when confined between assembled metal threads.

Can the fastener be removed later?
Yes. This removable-strength formula is designed to allow disassembly with hand tools.

Is this the same as ordinary glue?
No. Threadlocker is specifically formulated for threaded fasteners. It is applied to mating threads before assembly and cures within the assembled threaded connection.

How much is in the bottle?
This bottle contains 6 mL of blue removable threadlocker.

Where is it made?
It is made in the USA.

Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided.