Loctite 620 Retaining Compound Instruction Manual

1. はじめに

The Loctite 620 Retaining Compound is a high-strength, high-temperature anaerobic adhesive designed for bonding cylindrical fitting parts. This product is formulated to lock and secure metal cylindrical assemblies, prevent metal fretting and corrosion, and seal against leakage. It is suitable for applications requiring high temperature resistance and robust bonding.

2.製品オーバーview

Image: Loctite 620 Retaining Compound in a 10 mL bottle. This green-colored adhesive is used for securing cylindrical metal parts.

Loctite 620 is a high-viscosity liquid retaining compound. Key characteristics include:

• 色： 緑
• Gap Fill: Up to 0.015 inches (0.38 mm) maximum
• 粘度： 8500.0 cp
• Shear Strength: 3800 psi
• 温度範囲: -65.0°F (-54°C) ～ 450.0°F (232°C)
• Chemical Compound: Acrylic Ester
• Curing Method: Anaerobic (cures in the absence of air when confined between close-fitting metal surfaces)
• 用途: Cylindrical joint assemblies
• 適用可能な材料: Steel, Most Metals
• 臭い: 軽度
• 抵抗： Acetone, Brake Fluid, Corrosive Process, Heat, Unleaded Petrol, Wear
• Packing Type: ボトル
• 音量： 10mL

3. 安全情報

Always prioritize safety when handling chemical products. Consult the Material Safety Data Sheet (MSDS) for comprehensive safety information before use. The MSDS for Loctite 620 Retaining Compound (e.g., 62015 Retaining Compound Slip Fit 620.pdf) provides detailed guidance on safe handling, storage, and emergency procedures.

• 個人用保護具: Wear appropriate gloves and eye protection (safety glasses or goggles) to prevent skin and eye contact.
• 換気： 蒸気を吸い込まないように換気の良い場所で使用してください。
• ストレージ： Store in a cool, dry place, away from direct sunlight and incompatible materials. Keep container tightly closed when not in use.
• 応急処置： In case of contact, refer to the MSDS for specific first aid measures.
• 廃棄： Dispose of product and packaging in accordance with local, regional, national, and international regulations.
• 手の届かない場所に保管してください: お子様やペットの手の届かない場所に保管してください。

4. セットアップと表面の準備

Proper surface preparation is critical for optimal performance of the retaining compound.

1. 表面をきれいにする: Thoroughly clean all mating surfaces to remove any oil, grease, dirt, or other contaminants. Use a suitable industrial cleaner or degreaser.
2. 乾いた表面: Ensure all surfaces are completely dry before applying the compound. Moisture can interfere with the curing process.
3. Roughening (Optional): For maximum adhesion on passive metals or large gaps, light abrasion of the surfaces may be beneficial, followed by cleaning.

5. 操作手順（アプリケーション）

Follow these steps for effective application of Loctite 620 Retaining Compound:

1. Dispense Compound: Apply a sufficient amount of Loctite 620 Retaining Compound to one or both mating surfaces of the cylindrical assembly. Ensure complete coverage of the bond area.
2. 部品の組み立て: Quickly assemble the parts. The anaerobic curing process begins when the compound is confined between the metal surfaces in the absence of air.
3. 硬化時間:
   • Fix Cure Time: Approximately 30 hours at 77°F (25°C). This is the time required for the assembly to achieve sufficient handling strength.
   • 完全硬化時間: Approximately 24 hours at 77°F (25°C). This is the time required for the product to achieve its maximum strength. Note: Cure times can vary depending on temperature, gap, and substrate material.
4. 組み立て後: Avoid disturbing the assembly during the initial fix cure period to ensure proper bonding.

6.メンテナンスと保管

Proper storage ensures the longevity and effectiveness of the product.

• 保管条件: Store the Loctite 620 Retaining Compound in its original container in a cool, dry, and well-ventilated area. Ideal storage temperature is between 46°F (8°C) and 82°F (28°C).
• 容器の密封: Keep the bottle tightly closed when not in use to prevent air exposure, which can initiate curing.
• 貯蔵寿命： Refer to the product packaging or technical data sheet for specific shelf life information.

7。 トラブルシューティング

If you encounter issues during application or curing, consider the following:

• No Cure or Slow Cure:
  • 表面の清浄度: Ensure surfaces were thoroughly cleaned and degreased. Contaminants can inhibit curing.
  • Anaerobic Conditions: Verify that the compound is fully confined between metal surfaces with minimal air exposure. Anaerobic adhesives require the absence of air to cure.
  • 温度： Curing speed is temperature-dependent. Lower temperatures will result in slower cure times. Ensure application is within recommended temperature ranges.
  • 基板材質: Some metals (e.g., stainless steel, zinc, aluminum) are less active and may cure slower. An activator may be required for passive substrates or large gaps, though not explicitly mentioned for this product, it's a general anaerobic adhesive troubleshooting step.
• 接着不良:
  • Gap Size: Ensure the gap between parts is within the specified 0.015-inch maximum. Excessive gaps can lead to incomplete curing and poor strength.
  • 表面処理: Re-evaluate surface cleaning and drying procedures.

8. 仕様

9. 保証情報

Specific warranty details for the Loctite 620 Retaining Compound are not provided within this manual. For information regarding product warranty, please contact Loctite customer support or refer to the official Loctite webサイト。

10. サポートとお問い合わせ

For further assistance, technical data sheets, or safety information, please refer to the official Loctite resources.

• Official Loctite Store: Visit the Loctite Store on Amazon
• 化学物質安全データシート（MSDS）： Always consult the latest MSDS for detailed safety and handling instructions.
• テクニカルサポート： Contact Loctite directly for product-specific technical support.