Part no. (SKU/IDH):
1803365
IDH Name:
LOCTITE® 638, 50 ml Bottle
Retaining compounds
High-strength, general purpose bonding of cylindrical parts
A 1-part, designed for bonding cylindrical fitting parts, particularly with narrow bond gaps up to 0.25 mm (0.01"). Great for a fast cure on all metals, including passive substrates like stainless steel.
Part no. (SKU/IDH):
1803365
IDH Name:
LOCTITE® 638, 50 ml Bottle
All marks used are trademarks and/or registered trademarks of Henkel and its affiliates in the US, Germany, and elsewhere.
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- Description
- Technical specification
For a retaining compound offering high strength on all metals, including passive substrates, try LOCTITE® 638. You can expect high temperature performance and good oil tolerance, a fixture time of just four minutes, and gap fill of 0.15 mm to 0.25 mm (0.006" to 0.01"). It even tolerates minor surface contaminants, including industrial oils. A high-viscosity product, it’s ideal for shafts, gears, pulleys and similar cylindrical parts, and can also be used for high-strength threadlocking and thread sealing applications. Operating temperature is -55°C to 180°C (-65°F to 355°F). LOCTITE 638 meets the performance requirements of KIWA GASTEC QA AR 214 for admixtures up to and including 100% hydrogen gas on metal threaded fittings – certifications are available in select countries.
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Ideal for shafts, gears, pulleys and similar cylindrical parts
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High strength on all metals, including passive substrates (e.g. stainless steel)
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High temperature resistance
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Fluorescent under UV for quality control
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KIWA GASTEC QA AR 214 certified for hydrogen gas systems
- Product category:
- Retaining compounds
Technologies:
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Acrylates, anaerobic cure
- Agency approvals / certificates / specifications:
- DVGW (EN 751-1): NG-5146AR0619; NSF P1 Reg. No 123010; WRAS (BS 6920): 0511518
- Application method:
- Dispense system; Manual
- Applications:
- For close fitting cylindrical parts; For slip fitted parts; Retaining
- Colour:
- Green
- Cure type:
- Anaerobic cure
- Fixture time:
- 4.0 min
- Gap fill:
- 0.15 mm - 0.25 mm
- Key characteristics:
- Fluorescent; Oil tolerant; Strength: high strength; Temperature resistant; Viscosity: high viscosity
- Operating temperature:
- -55.0 °C - 180.0 °C (-65.0 °F - 355.0 °F)
- Physical form:
- Liquid
- Recommended for use with:
- Metal: steel
- Shear strength, Steel:
- 31.0 N/mm² (4500.0 psi)
- Viscosity:
- 2500.0 mPa·s (cP)
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