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Small green bottle of Loctite 638 retaining compound, 10 ml

Loctite

Loctite 1835937 Retaining Compound 638 Series Green 10ml High Strength hardware

SKU CH-9A1Z-VG76J

High-strength green retaining compound for steel parts, fills gaps up to 0.01 in, cures in 4 minutes, withstands -65 to 355 Degrees F, 10 ml bottle

  • TypeThreadlockers and Retaining Compounds
  • Size10ml
  • High-strength bonding for steel assemblies
  • Fills gaps up to 0.01 in on loose-fitting parts
  • Withstands temperatures from -65 °F to 355 °F
  • Delivers 4,200 psi shear strength when cured
  • Full cure in 1 day with primer applied

High-Strength Retaining Compound 638

Loctite 1835937 is a green, urethane methacrylate retaining compound designed for bonding cylindrical steel assemblies. The 10 ml bottle dispenses a liquid adhesive that fills gaps up to .01 in and develops a shear strength of 4,200 psi after full cure.

Suits permanent steel joints needing high heat

Mechanics securing bearings, bushings or shafts in steel housings will appreciate the 355 Degrees F maximum operating temperature and the 4 minute working time for alignment. Builders who need a removable threadlocker, a lower-strength compound or a primerless application should look at something else.

10 ml bottle handles multiple small assemblies

The container provides enough adhesive for several press-fit or slip-fit joints with gaps within the .01 in limit. Full cure requires 1 day at room temperature and a primer is required for reliable performance on inactive surfaces. The compound remains stable down to -65 Degrees F.

Highlights

  • High-strength bonding for steel assemblies
  • Fills gaps up to 0.01 in on loose-fitting parts
  • Withstands temperatures from -65 °F to 355 °F
  • Delivers 4,200 psi shear strength when cured
  • Full cure in 1 day with primer applied

Specifications

BrandLoctite
TypeThreadlockers and Retaining Compounds
Size10ml

Questions about this item

What size gap can the 638 Series compound fill on a cylindrical assembly?

The product fills gaps up to .01 in on loose-fitting steel parts.

Does the green 10ml bottle need a primer before bonding to steel?

Yes, a primer is required for the urethane methacrylate base to cure properly on steel surfaces.

How long after assembly should I wait before the joint reaches full 4,200 psi shear strength?

Allow one day at room temperature for the compound to achieve its full cure and rated strength.

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