Threadlocker Red 271 (permanent)

High strength · US · not yet reviewed

Set / hardened: 10 minutes after application.

Full cure: 1 day after application.

Used for automotive parts and fasteners, load-bearing bonds: elapsed time alone can’t confirm it’s ready. Inspect or test before loading.

Start the clock

From Loctite (Henkel) data sheet · checked 2026-10-24. Anything not listed isn’t stated by the manufacturer.

Conditions & fine print

Stated conditions: Strength data at 72°F (22°C)
Cures only when confined between close-fitting metal parts without air. Permanent: removal usually needs heat. Cure time depends on temperature and metal type.
Temperature range: 50°F to —°F
Region US. Formulas can differ between countries; check your container.
Entered from the manufacturer source; second review pending. Report outdated information
Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

How long before Threadlocker Red 271 (permanent) is set / hardened?

Loctite (Henkel) states: Sets in approximately 10 minutes. This is the manufacturer’s stated time, not a guarantee.

How long before Threadlocker Red 271 (permanent) is full cure?

Loctite (Henkel) states: Fully cures in 24 hours. This is the manufacturer’s stated time, not a guarantee.