Top 10 Best loctite 545 in 2026

Last Updated - 6/29/2026

🏆Best Choice

Loctite

Loctite Threadlocker Blue 242 - Removable Thread Lock Glue for Nuts, Bolts, & Fasteners, Medium Strength Screw Glue to Prevent Loosening & Corrosion - 6 ml, 1 Pack

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Lock and Seal Fasteners: Prevents loosening of metal fasteners caused by vibration on small motors, mowers, and power equipment
•Prevents Rust and Corrosion: Protects from leaks, rusting, and corrosion and eliminates need to stock up on expensive lock nuts and washers
•Removable: Can be removed with hand tools
•Easy and Quick: Sets in 10 minutes and fully cures in 24 hours
•For 6-19mm Fasteners: Medium-strength formula for use on threads for 6mm to 19mm nuts and bolts

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$5.80

$7.98

-27%

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Permatex

Permatex 59235 High Temperature Thread Sealant, 50 ml Tube , White

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Locks and seals threaded fittings
•Resists leakage, vibration loosening, moisture, hydraulic fluids and diesel fuels
•Lubricates threads for easy assembly and disassembly
•Parts may be repositioned up to 4 hours after application
•Suggested Applications: head bolts into through holes, oil PSI sending units and sensors, oil and coolant lines, fuel fittings, rear axle fill plug, brake and power steering fittings

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$14.06

$17.95

-22%

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Loctite

Loctite 37482 545 Pneumatic/Hydraulic Thread Sealant Bottle - 36 ml

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Designed for locking and sealing high-pressure pneumatic and hydraulic systems
•The pneumatic/hydraulic sealant contains no fillers or particles that could contaminate system fluids, foul valves or clog fine filters and screens
•Reliably cures on "as received" fasteners
•Typical applications include hydraulic line fittings, brake fittings, transmission fluid fittings and PTO fittings
•Fit type: Vehicle Specific

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$23.96

$26.99

-11%

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Loctite

LOCTITE 565 Automotive White Thread Sealant - General Purpose, High Viscosity, Rapid Cure, Replaces Tapes & Pipe Dopes - 50 ml, 1 Pack

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•OEM-Approved Performance: LOCTITE automotive products are not only OEM-specified but also designed and tested by leading auto manufacturers. Trusted by professionals in engine building and repair worldwide (PN: 483629)
•Dependable Thread Sealing: Fast-curing formula withstands pressures up to 10,000 PSI, ensuring leak-proof, long-lasting seals in demanding conditions
•Versatile Alternative: Replaces traditional tapes, pipe dopes, and pre-coated parts, offering a superior solution for a variety of sealing needs
•Wide Application Range: Perfect for stainless steel fittings, head bolts in through holes, oil pressure sending units, sensors, oil and coolant lines, and more
•Specialized Formulation: Engineered specifically for metal and tapered pipe thread fittings, providing a reliable and durable solution for automotive professionals

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$15.97

$17.49

-9%

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Vibra-TITE

Vibra-TITE - 44050 440 Hydraulic and Pneumatic Anaerobic Thread Sealant, 50 ml Bottle, Purple

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Seals and secures metal pipes and fittings; fills the space between threaded metal parts
•Prevents leakage caused by tape shredding, vibration loosening, solvent evaporation or damaged threads
•Prevents corrosion and galling of threads
•Low and high pressure applications; seals to the burst strength of most piping systems
•Facilitates assembly

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$20.89

$34.90

-40%

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Permatex

Permatex 54540 Pneumatic and Hydraulic Sealant - 1.22 oz.

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Designed for locking and sealing high pressure hydraulic and pneumatic systems
•Reliably cures on "as received" fasteners
•Controlled locking strength affords easy disassembly
•Suggested Applications: Hydraulic line fittings, brake fittings, transmission fluid fittings, PTO fittings

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$23.76

$29.99

-21%

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Loctite

Loctite 542 Liquid Thread Sealant, 50 mL Bottle, Brown

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Sale Unit: BOTTLE
•Brand: Loctite
•Loctite Number: 542
•Threadlocking Strength: Medium
•Color: Brown
•Material Compatibility: Metal
•Aerobic or Anaerobic: Anaerobic
•Cure Time: 72 hr
•Product Form: Liquid
•Package Type: Bottle
•Package Size: 50 ml
•Shear Strength: 940 psi
•Tensile Strength: 130 psi
•Maximum Operating Temperature: +300 degF
•Minimum Operating Temperature: -65 degF
•Viscosity Class: Low Viscosity
•Viscosity Measurement: 525/1850 cPs
•Storage Condition: Store Between +46.4degF to +69.8degF
•Hazardous Shipping: NOT REGULATED
•Package Quantity: 50 ml per inner

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$14.00

$14.82

-6%

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Loctite

Loctite 37482-6PK Pneumatic/Hydraulic Thread Sealant 545-36 ml Bottle, (Pack of 6)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Designed for locking and sealing high-pressure pneumatic and hydraulic systems
•The pneumatic/hydraulic sealant contains no fillers or particles that could contaminate system fluids, foul valves or clog fine filters and screens
•Reliably cures on "as received" fasteners
•Typical applications include hydraulic line fittings, brake fittings, transmission fluid fittings and PTO fittings
•Controlled locking strength allows easy disassembly

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$52.60

$64.35

-18%

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Loctite

545™ Thread Sealant, Hydraulic, Pneumatic Fittings, 50 ml Bottle

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

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$42.90

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Loctite

Loctite HL135486 545 Thread Sealant

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Type - Thread Sealants
•Physical Form - Liquid
•Curing Method - Anaerobic
•Resistance - Acetone Brake Fluid Ethanol Unleaded Gasoline
•Applicable Materials - Most Metals

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$42.80

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📈 How we rank

With our cutting-edge technology, we examine thousands of products and retailers, assessing reviews, ratings, trends, and sales rankings to identify what matters most to users like you.

Our team evaluates this data alongside genuine user feedback, merging AI analysis with human insights to provide you with real-time, highly-rated recommendations that empower your decision-making with clarity and confidence.