Permabond HM128 Threadlocker

Description

Permabond HM128 is a high-strength threadlocker designed for permanent assembly and vibration prevention of threaded fasteners like bolts, studs, and cap screws. It cures quickly at room temperature on steel and common bolt platings, eliminating the need for lock washers and ensuring a secure, long-lasting hold.

Key Features and Benefits:

• Superior vibration resistance: Protects threaded assemblies from loosening due to vibration and impact, preventing leaks and ensuring reliable performance.
• Controlled off-torque: Allows for precise tightening and prevents over-torquing of fasteners.
• Permanent threadlocking: Creates a strong bond that seals threads and prevents loosening or disassembly.
• Fast cure at room temperature: No heat required for curing, simplifies application and reduces process time.
• Thread lubrication: Minimizes friction during assembly, reducing torque requirements.
• Corrosion protection: Guards against rust and corrosion on metal surfaces.
• Excellent environmental resistance: Withstands a wide range of temperatures and chemicals for long-lasting performance.
• Environmentally friendly: 100% solids, contains no solvents or VOCs, making it a safe and sustainable choice.

Permabond HM128 is ideal for a variety of applications, including:

• Machinery and equipment assembly
• Automotive parts
• Electrical motors and generators
• Appliance manufacturing
• HVAC systems
• And any application requiring permanent threadlocking and superior vibration resistance

Permabond HM128 complies with industry standards:

• MIL-S-46163A Type I Grade K
• ASTM D5363 AN 0221 Group 02 Class 2 Grade 1

Stop leaks and ensure robust performance with Permabond HM128, the high-strength threadlocker that delivers permanent security and ease of use.

Physical Properties:

Chemical Composition	Methacrylate esters
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)
Time taken to reach handling strength (M10 steel) @23°C	15 Minutes
Full strength (M10 steel) @23°C	24 hours

 

Typical Performance of Cured Adhesive:

Torque strength (M10 steel ISO10964	Break 31 N-m (275 in. lb) Prevail 40 N-m (350 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)

Compare To:

• Loctite® 271
• 3M™ Scotch-Weld™ TL71
• Permatex® High Temperature Threadlocker Red