Loctite® Retaining Compound 638™ - High Viscosity

Fills gaps to secure unthreaded cylindrical metal parts.
  • Fills larger gaps when assembling loose-fitting parts.
  • High strength. Prevents loosening from shock and vibration.
  • Temperature range -54º to 179ºC (-65º to 355ºF).
  • Green, high-viscosity liquid.
MODEL
NO.		 DESCRIPTION TYPE FIXTURE
TIME		 COLOR SIZE PRICE EACH IN STOCK
SHIPS TODAY
1 2 4+
S-26561 638™ High Viscosity 4 mins. Green 50 mL $108 $106 $105  ADD
SPECIFICATIONS:
  • Maximum Gap Fill: 0.010" (0.25mm)
  • Viscosity: 2,500 cP
  • Shear Strength: 4,500 psi
  • Full Cure: 24 hours
  • NSF P1 & CFIA approved
MODEL NUMBER:
  • Loctite®: 1835936
SHELF LIFE:
  • 24 months from date of manufacture.
PACKAGING:
  • Bottles are not completely filled by design to prevent the liquid from curing.
Availability: In Stock
Unit Weight: 0.19 lbs.\0.09 kg
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Availability: In Stock
Unit Weight: 0.19 lbs.\0.09 kg
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Availability: In Stock
Unit Weight: 0.19 lbs.\0.09 kg
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Availability: In Stock
Unit Weight: 0.19 lbs.\0.09 kg
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03/15/2026 12:28:45 PM; CNWEB5