樂泰 542

樂泰 542

Loctite 542 is designed for locking and sealing metal pipes, fittings, and other cylindrical metal components. When sealed in an airtight environment, the product cures between closely fitting metal surfaces, preventing loosening and leakage caused by shock and vibration. Loctite 542 exhibits thixotropic properties, which reduces the migration of liquid products after application to components.

Breakaway torque, Steel, M10:15.0 N·m (130.0 in./lb.)
Color:Brown
工作溫度：-55.0 °C – 150.0 °C (-65.0 °F – 300.0 °F)
Viscosity, 20 RPM:600.0 mPa·s (cP)

 

產品概覽

LOCTITE 542 is a single-component, thixotropic, medium-strength anaerobic thread sealant developed for locking and sealing fine-threaded metal pipes and fittings commonly used in hydraulic and pneumatic systems. It cures rapidly when confined between metal surfaces, preventing vibration loosening and leakage. It contains 無微粒或填充物, avoiding contamination of fluid systems and clogging of fine filters.

主要功能與優勢

  • Fast cure on fine threads (instant low-pressure seal)

  • Medium strength—secure yet serviceable

  • Thixotropic formula that resists migration after application

  • Resistant to fuel, oil, hydraulic fluids, and coolants

  • Filler-free—won’t clog filters or valves

  • Approvals and certifications (e.g. DVGW, WRAS) for certain markets

技術規格

財產值 / 範圍
顏色Brown
黏度~600 毫泊·秒 (厘泊)
操作溫度–55 °C 至 +150 °C
斷開扭力（鋼，M10）15.0 N·m (≈ 130 in·lb)
治療類型Anaerobic, one component
Thixotropic BehaviorReduces migration / bleeding
Filler Content無

應用／使用說明

  1. 表面處理 — Clean threads thoroughly to remove oil, dirt, and contaminants.

  2. Apply Adhesive — Use a 360° bead on male threads, leaving the first thread free; alternatively apply to female threads when appropriate.

  3. 組裝 — Tighten to recommended torque; adhesive spreads into micro-gaps.

  4. 固化/處理 — Provides instant low-pressure seal; full cure depends on substrate, thread size, and temperature.

  5. 拆卸 — Some service is possible with standard hand tools; use heat if necessary.

Include tips such as: avoid over-application, allow cure before pressure, consider activator for slow-curing conditions.

典型應用

LOCTITE 542 is ideal for:

  • Fine-threaded hydraulic and pneumatic fittings

  • Metal pipe fittings in fluid power systems

  • Valves and small metal connectors

  • Any application where sealing and locking of metal threads is needed without inert particles

常見問題

  • Q1: Can LOCTITE 542 be used on stainless steel or plated threads?
    A1: Yes — it cures between metal surfaces even on passive substrates, though cure may be slower in some cases.

  • Q2: Does it contain particles or fillers that might clog system filters?
    A2: No — it is filler-free, so it won’t clog valves or fine filters.

  • Q3: What is its temperature range?
    A3: –55 °C to +150 °C.

  • Q4: What is the breakaway torque on steel (M10)?
    A4: Approximately 15 N·m.

  • Q5: Is heat needed to disassemble?
    A5: Often parts can be disassembled with tools; if seized, localized heat may help.

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