Permabond HM128 Anaerobic Threadlocker

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Permabond HM128 Anaerobic Threadlocker
Categories:	Polymer; Adhesive; Thermoset; Acrylic/Cyanoacrylate Adhesive
Material Notes:	Permabond® HM128 Threadlocker is a high strength adhesive for permanent assembly. It is typically used for preventing vibration loosening of bolts, studs and cap screws. Full cure to a cross-linked plastic is achieved reliably and fast on steel and all common bolt platings. Additional application areas include machinery, equipment, and electric motor manufacturers. PERMABOND® HM128 Threadlocker replaces lock washers. Features & Benefits: Prevents vibration loosening Controlled off-torque Permanent threadlocking Full cure at room temperature Lubricates threads for easier assembly Provides corrosion protection Superior environmental resistance Environmentally friendly – 100% solids Information provided by Permabond.
Key Words:	MIL-S-46163A
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Physical Properties	Metric	English	Comments

Specific Gravity	1.10 g/cc	1.10 g/cc	Uncured
Viscosity	500 cP @Temperature 25.0 °C	500 cP @Temperature 77.0 °F	Uncured
Storage Temperature	5.00 - 25.0 °C	41.0 - 77.0 °F

Mechanical Properties	Metric	English	Comments
Adhesive Bond Strength	17.0 MPa	2470 psi	steel collar and pin shear; ISO 10123

Electrical Properties	Metric	English	Comments
Dielectric Strength	11.0 kV/mm	279 kV/in

Thermal Properties	Metric	English	Comments
CTE, linear	90.0 µm/m-°C	50.0 µin/in-°F
Thermal Conductivity	0.190 W/m-K	1.32 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	149 °C	300 °F
Minimum Service Temperature, Air	-53.9 °C	-65.0 °F

Processing Properties	Metric	English	Comments
Cure Time	4.98 min @Temperature 23.0 °C	0.0830 hour @Temperature 73.4 °F	Brass, handling strength
	15.0 min @Temperature 23.0 °C	0.250 hour @Temperature 73.4 °F	M10 steel, handling strength
	30.0 min @Temperature 23.0 °C	0.500 hour @Temperature 73.4 °F	Brass, working strength
	60.0 min @Temperature 23.0 °C	1.00 hour @Temperature 73.4 °F	Zinc, handling strength
	60.0 - 180 min @Temperature 23.0 °C	1.00 - 3.00 hour @Temperature 73.4 °F	M10 steel, working strength
	360 min @Temperature 23.0 °C	6.00 hour @Temperature 73.4 °F	Stainless steel, handling strength
	1440 min @Temperature 23.0 °C	24.0 hour @Temperature 73.4 °F	M10 steel, full strength
	4320 min @Temperature 23.0 °C	72.0 hour @Temperature 73.4 °F	Zinc, working strength

Descriptive Properties
Appearance	Red		Uncured
Maximum Gap Fill (mm)	0.15
Maximum Thread Size	M20
Strength Retention	50% at 150°C		Relative to 0°C
	80% at 100°C		Relative to 0°C
	93% at 50°C		Relative to 0°C
Torque Strength (N m)	31		M10 steel, break
	40		M10 steel, prevail
UV Fluorescence	Yes		Uncured

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PPERMA06 / 56114

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