Dri-Loc® Pre-Applied Adhesive Chemical Additive Type

-65°F to +400°F
Reusability per IFI 125 and IFI 525 (Single Use Only)

Long-Lok is proud to offer Dri-Loc® adhesive coatings for standard fasteners and other threaded components. Dri-Loc adhesives (from Loctite Corporation), applied to threaded parts, form a unique coating that converts ordinary fasteners into self-locking fasteners. Dry to the touch, Dri-Loc adhesives become an integral part of the fastener and stay inert until parts are used. During the assembly process, Dri-Loc adhesive is activated by assembly forces, releasing anaerobic adhesive which locks parts securely.


Dri-Loc adhesives are applied to the full circumference of the fastener. Resin fills all voids in the threads when installed, and cures to form an excellent seal to both liquids and gases. (For pre-applied non-locking thread sealant, see Vibra-Seal® information beginning on Page 42.)

Dri-Loc adhesives are designed for applications where specific shear strengths, temperature range and substrate types are necessary. All Dri-Loc adhesives harden in the absence of air on ferrous and nonferrous metals without primer, activators or heat.
They exhibit controlled lubricity, low on torque and are dry to touch for ease of assembly with automatic or hand tools.

For convenience, coatings are color coded to indicate strength range and for easy inspection. Bolts with diameters of 1/16” through 3/4” and with shank lengths of 3/8” to 6” can be coated with our specially developed equipment.

Commercial Standards:
IFI 125 and IFI 525

Resin (anaerobic) Dimethacrylate
Flashpoint (Cleveland open cup)Above 200°F (93°C)
On-Part Life at 68°F/20°C (±20°F/-7°C and 50% RH)4 years
Specific Gravity1.05 to 1.15
Cure Speed @ 70°F/21°C10-minute fixture; full cure in 72 hours
On-torqueLow installation torque
MaterialsK Value
Zinc Phosphate/oil0.11
Dri-Loc 2000.12
Dri-Loc 2010.15
Dri-Loc 2020.13
Dri-Loc 2030.11
Dri-Loc 2040.18


Long-Lok is part of Novaria Group, a cohesive family of precision component companies, that consistently delivers optimum performance and sustainable growth within the aerospace and defense marketplace.
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