TL42 Sealants | McMaster-Carr

The most commonly used threadlockers, these liquids prevent loosening due to vibration, bending, or improper torque. You only need a few drops to evenly coat threads. As you twist parts together, exposure to air is blocked and the threadlocker begins to harden.

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.

Medium Locking Strength—Strong enough for most applications, these threadlockers hold firmly until you break their bond with a combination or ratchet wrench.

Thin Liquid—Seep into tight spaces better than thick liquids, so they're best for fine threads.

		Container									Each		Package
	Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, min.	Color	Breakaway Torque, in·lbf	Temp. Range, ° F	Consistency	Viscosity, cP	Reaches Full Strength, hr.		Each	Pkg. Qty.		Pkg.
Medium Locking Strength







				3M Scotch-Weld

				TL42	0.03	Single-Use Capsule	20	Blue	140	-65 to 300	Thin Liquid	1,200	24	000000000	00000	100	000000000	0000000


				TL42	0.34	Bottle	20	Blue	140	-65 to 300	Thin Liquid	1,200	24	000000000	00000	10	000000000	000000
				TL42	1.69	Bottle	20	Blue	140	-65 to 300	Thin Liquid	1,200	24	000000000	00000	10	000000000	000000
				TL42	8.45	Bottle	20	Blue	140	-65 to 300	Thin Liquid	1,200	24	000000000	000000	—	———	0