LOCTITE 638 High Strength Retaining Compound

Features and Benefits

LOCTITE 638 is a high strength, fast curing, general purpose retaining compound.
LOCTITE® 638 is designed for the bonding of cylindrical fitting parts, particularly with narrow bond gaps approaching 0.25 mm. The product cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage due to shock and vibration. It not only works on active metals but also on passive substrates, exhibiting robust cure performance. The product offers high-temperature performance and good oil tolerance, and tolerates minor surface contaminants.
  • Tolerates minor contaminants, including industrial oils
  • High strength on all metals, including passive substrates (e.g. stainless steel)
  • High temperature resistance
  • Ideal for shafts, gears, pulleys and similar cylindrical parts
  • DVGW Approval (EN 751-1): NG-5146AR0619
  • P1 NSF Reg. No.: 123010
  • WRAS Approval (BS 6920): 0511518
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Documents and Downloads

Safety Data Sheets and RoHs
LOCTITE 638 Retaining Compound 1835925 en-US
IDH: 1835925
EAN: 079340006409

Size Case: 250 ml Bottle

Quantity: 10.0/case

LOCTITE 638 Retaining Compound 1835936 en-US
IDH: 1835936
EAN: 079340006393

Size Case: 50 ml Bottle

Quantity: 10.0/case

LOCTITE 638 Retaining Compound 1835937 en-US
IDH: 1835937
EAN: 079340006386

Size Case: 10 ml Bottle

Quantity: 10.0/case

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Technical Information

Agency Approvals / Specifications NSF P1 Reg No: 123010, DVGW (EN 751-1): NG-5146AR0619, WRAS (BS 6920): 0511518
Color Green
Fixture Time 4.0 min.
Gap Fill 0.25 mm
Substrates Metal: Steel

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LOCTITE 638
LOCTITE 638 is a high strength, fast curing, general purpose retaining compound.

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