This thick paste withstands temperatures up to 650 °F. It's easy to apply and won't drip, even from overhead fasteners. These threadlockers begin to harden once coated surfaces are threaded together and exposure to air is blocked.

Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes, and cadmium and zinc coatings.

Threadlockers with high locking strength require both heat and a hand tool to unthread.