Would this be 2 heavy for gun sight installation or just what i need?

It might be to much for 271. It was designed for larger treads 3/8 + hold, and might make it impossible to remove at a latter time because of inability to apply enough heat and torque to remove from small treads like a scope mount. use Blue which is for small threads

Does this product require a primer? The fourth picture on Amazon suggests it does but the instructions do not mention a primer. Stainless + aluminum

I didn't need to. I used it on steel threads. Didn't even clean them. Applied this product and assembled. Hardened in minutes. I waiyed 24hrs before use just in case. Excellent product. I've used in the automobile repair industry for 30yrs.

Would this be appropriate for the locking nut on a sink faucet, that is always coming loose and making the faucet wobble?

Oh god no! This is for applications of extreme vibration and areas that's could be extremely dangerous if a bolt or nut came loose. All you should need for you faucet is the blue loctite. After using the red, you would need some serious heat and a breaker bar to free that nut if you needed to replace that faucet in the future.

if it is opened/used, how long will it stay fresh/usable?

Unopened/opened shelf life of Loctite 271 is two years from date of manufacture. Since exposure to oxygen is what keeps the liquid product stable, and it is packaged in a "breathable" plastic bottle, there is no change in shelf life once the product has been opened.

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🔧 Lock it down, heat it up, never let go!

RAPID CURE TIME - Sets in just 10 minutes, fully cures in 24 hours—get back to work faster.
OIL TOLERANT FORMULA - Works on all metals—even oily or passive surfaces like stainless steel and aluminum.
HEAT REMOVABLE DESIGN - Secure under shock and vibration, yet removable with localized heat when needed.
MILITARY GRADE STRENGTH - Locks bolts up to M25 with 3000 PSI shear strength for ultimate reliability.
EXTREME TEMPERATURE RESILIENCE - Performs flawlessly from -65°F to 360°F, perfect for harsh automotive environments.

Loctite 271 Threadlocker is a high-strength, red anaerobic adhesive engineered for permanent locking and sealing of metal fasteners up to 1" (M25). It delivers 3000 PSI holding power, cures rapidly within 10 minutes, and withstands extreme temperatures from -65°F to 360°F. Its oil-tolerant, low-viscosity formula works on all metals including stainless steel and aluminum, making it ideal for automotive applications exposed to shock, vibration, and harsh environments. Tested to military standards, it ensures professional-grade reliability with heat-removable convenience.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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€ 34.88

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Slovakiastore

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Manufacturer	Loctite
Brand	LOCTITE
Model	Loctite 487232 Threadlocker 271 High Strength Tube, Red, 6-ml
Product Dimensions	16.51 x 9.69 x 2.03 cm; 4.54 g
Item model number	37421
Exterior	Smooth
Manufacturer Part Number	37421
OEM Part Number	37421
Special Features	Strong
Item Weight	4.54 g
Viscosity	Low viscosity

Loctite 271 Threadlocker for Automotive: High-Strength, High-Temp, Fluorescent, Anaerobic | Red, 6mL Tube (PN: 37421-487232)

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