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LOCTITE® 545 Hydraulic/Pneumatic Thread Sealant

Known as Loctite 545 Thread Sealant Hydraulic/Pneumatic Sealant

Features and Benefits

High lubricity thread sealant for locking and sealing metal pipes and small fittings with fine threads.
LOCTITE® 545 is a pipe thread sealant designed for locking and sealing of metal pipes and fittings. It is specially formulated to offer high lubricity for easy assembly and removal. Recommended for fine threaded fittings as used in hydraulic and pneumatic installations and small fittings in general. Suitable for fittings up to 50 mm in diameter including pneumatic and hydraulic fittings.
  • Excellent solvent resistance
  • ABSSM approved
  • CFIA approved
  • Contains no fillers or particles that could contaminate system fluids, foul valves, or clog fine filters and screens
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE® 545, 50 ml Bottle 135486 en-US
IDH: 135486
EAN: 079340545311

Size Case: 50 ml Bottle

Quantity: 10.0/case

LOCTITE® 545, 250 ml Bottle 195662 en-US
IDH: 195662
EAN: 079340545410

Size Case: 250 ml Bottle

Quantity: 10.0/case

LOCTITE® 545, 0.50 ml Tube 234428 en-US
IDH: 234428
EAN: 079340545052

Size Case: 0.50 ml Tube

Quantity: 100.0/case

LOCTITE® 545, 10 ml Bottle 303420 en-US
IDH: 303420
EAN: 079340324299

Size Case: 10 ml Bottle

Quantity: 10.0/case

LOCTITE® 545, 36 ml Bottle 492145 en-US
IDH: 492145
EAN: 079340374829

Size Case: 36 ml Bottle

Quantity: 6.0/case

No documents found

Technical Information

Application method Dispense System, Manual
Applications Hydraulic/Pneumatic Sealing, Pipe Sealing, Thread Sealing
Breakaway torque, Steel M10 2.0 N·m (20.0 in./lb. )
Color Purple
Cure type Anaerobic Cure
Key characteristics Lubricity: High Lubricity, No Fillers/Particles, Solvent Resistant, Viscosity: Medium Viscosity
Operating temperature -55.0 - 150.0 °C (-65.0 - 300.0 °F )
Physical form Liquid
Recommended for use with Metal, Thread Type: Fine
Viscosity, 20 RPM 15000.0 mPa·s (cP)

How to

Step by Step Guide

1. Preparation

Cleaning - It is recommended to use LOCTITE® SF 7070™ Cleaner & Degreaser to degrease and clean surfaces prior to applying adhesive. Activation - If cure speed is too slow due to passive metals (stainless steel, aluminum and plated metals) or low temperatures (below 5°C), use LOCTITE® SF 7649 activator. Allow to dry.

2. Application

Starting one to two threads from leading edge of pipe, apply a 360° bead to cover three thread roots. For bigger threads, apply both on male and female threads. (Recommended dispensing equipment: LOCTITE® Pro Pump, LOCTITE® 50 ml or 250 ml Hand Pump, or Peristaltic handgun 97001.)

3. Assembly

Assemble fittings using wrench tightening in accordance with manufacturers' recommendations.

4. Disassembly

Disassemble with standard hand tools. If not possible, apply localized heat to approximately 260°C/500°F and disassemble while hot.

Frequently Asked Questions