Product Name
- Permabond MM115 PURE Anaerobic Threadlocker and Sealant (Potable Water Safe) NSF/ANSI 61 Certified
Brief Description
- Permabond MM115 PURE is a medium-strength, general-purpose anaerobic threadlocker and sealant. It is a one-component adhesive designed for locking metal bolts, nuts, and screws that may require disassembly for service and maintenance. This product is specifically formulated for use in contact with potable water and is NSF/ANSI 61 Certified as a drinking water system component.
Popular Applications & Uses
- Locking metal bolts, nuts, and screws to prevent loosening due to vibration or thermal expansion stresses.- Sealing metal threaded fasteners and joints.- Applications requiring contact with potable (drinking) water systems.- General assembly where medium strength and removability with ordinary tools are desired.
Industries that Commonly Use It
- Pool/Spa/Plumbing: For sealing pipes, fittings, and threaded connections in water systems.- Construction/Building Services: Used in plumbing installations, HVAC, and general building maintenance.- General Manufacturing: For securing fasteners in a wide range of manufactured goods.- Food & Beverage Company or Distributor: Suitable for equipment in contact with potable water, meeting NSF/ANSI 61 standards.- Energy: Applications in pipework systems, HVAC, and general assembly within energy infrastructure.- Automotive Service/Repair: For locking fasteners in vehicle components.- Marine: Securing fasteners in marine equipment and vessels.- Metal Fabrication: Used in the assembly of various metal structures and components.- Distributers & Resellers: Sold through industrial supply and adhesive distributors.
Special and Unique Features
- NSF/ANSI 61 Certified: Approved for use as a drinking water system component.- Potable Water Safe: Specifically designed for contact with drinking water.- Medium Strength: Allows for disassembly with ordinary hand tools for service and maintenance.- Controlled Off-Torque: Provides consistent removal characteristics.- 100% Solids: Environmentally friendly formulation.- Non-drip Thixotropic: Prevents migration of the sealant before or during curing.- Lubricates threads for easier assembly.- Provides corrosion protection.
Key Properties
- Chemical Composition: Methacrylate esters.- Appearance: Colourless to light amber.- Viscosity @ 25°C: 1,300 mPa.s (cP) (Thixotropic).- Specific Gravity: 1.1.- Maximum Gap Fill: 0.15 mm (0.006 inches).- Handling Strength (M10 steel @23°C): 10 minutes.- Full Strength (M10 steel @23°C): 24 hours.- Torque Strength (M10 steel ISO10964): Break 16 N·m (140 in.lb), Prevail 7 N·m (60 in.lb).- Shear Strength (steel collar & pin ISO10123): 10 MPa (1450 psi).- Service Temperature Range: -55°C to +149°C (-65°F to +300°F).- Dielectric Strength: 11 kV/mm.- Thermal Conductivity: 0.19 W/(m.K).
Surface Compatibility
- Steel.- Cadmium.- Zinc.- Other plated fasteners.- Most metals, particularly steel and brass.- Note: Copper and its alloys accelerate cure speed, while oxidized or passivated surfaces (like stainless steel) may reduce cure speed.- May adversely affect some thermoplastics; users should check compatibility.- Best results on clean, dry, and grease-free surfaces.
Known backups / known substitutes
- Permabond LH050 PURE Anaerobic Thread Sealant (also potable water safe).- Loctite 243 Threadlocker (medium strength, some versions NSF/ANSI 61 certified).- Loctite 567 Thread Sealant (some versions NSF/ANSI 61 certified).- Rapidstick™ 8-5811 Anaerobic Thread Sealant (potable water safe).- Other Permabond anaerobic threadlockers and sealants with varying strengths and properties (e.g., HM118, HH120, HL126).
Comparison Note
- Permabond MM115 PURE stands out due to its specific NSF/ANSI 61 certification for potable water contact, making it ideal for applications where drinking water safety is paramount. It offers a medium-strength bond, allowing for disassembly with standard tools, differentiating it from permanent threadlockers. Its one-component, methacrylate ester-based anaerobic chemistry provides reliable locking and sealing on various metal fasteners, with good environmental and temperature resistance.
