PERMABOND® HM129 Anaerobic Threadlocker

Permabond® HM129 is a high strength medium viscosity anaerobic threadlocker and sealant. This material cures in the absence of air between tight fitting metal parts. Cure is fast and reliable on steel, cadmium, zinc and other plated fasteners. It is used for locking and sealing bolts, nuts and screws that require permanent assembly. When cured, the material prevents loosening and leakage.

FEATURES AND BENEFITS

Oil tolerant
Vibration resistant
Lubricates threads for easier assembly
Provides corrosion protection
Solvent free

Physical Properties of Uncured Adhesive

Chemical composition	Acrylic
Appearance	Red
Viscosity @ 25°C	500 mPa.s *(cP)*
Specific Gravity	1.1
UV fluorescence	Yes

Typical Curing Properties

Maximum gap fill Maximum thread size	0.15 mm *0.006 in* M20 ¾”
Time taken to reach handling strength (M10 steel) @23°C	10 minutes*
Time taken to reach working strength (M10 steel) @23°C	1-3 hours
Full strength (M10 steel) @23°C	24 hours

Typical Performance of Cured Adhesive

Torque strength (M10 steel ISO10964)	Break 33 N·m *290 in.lb* Prevail 58 N·m *520 in.lb*
Shear strength (steel collar & pin ISO10123)	17 MPa *2500 psi*
Coefficient of thermal expansion	90 x 10-6 mm/mm/°C
Dielectric strength	11 kV/mm
Thermal conductivity	0.19 W/(m.K)

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