Product Name
Permabond Anaerobic MH196 Accordion Bottle
Brief Description
Permabond MH196 is a medium strength, high viscosity, high temperature resistant anaerobic adhesive resin designed as a gasketmaker or flange sealant. It is primarily used for creating "formed in situ" gaskets between metal surfaces, effectively replacing a wide range of conventional pre-cut gaskets.
Popular Applications & Uses
- Making "formed in situ" gaskets between metal surfaces.- Replacing conventional pre-cut gaskets of various sizes.- As a dressing for conventional pre-cut gaskets.- Applications demanding high temperature resistance.- Sealing in automotive components.- Maintenance for cranes and heavy machinery.- Sealing in pumps, pneumatic systems, and hydraulic systems.
Industries that Commonly Use It
- Automotive Service/Repair- General Manufacturing (for machinery, pumps, pneumatics, hydraulics assembly and maintenance)- Metal Fabrication (for creating gaskets between metal surfaces)- Engineering Services (for mechanical engineering and maintenance)- Industrial Supply- Distributers & Resellers- Transportation/ Specialty Vehicle
Special and Unique Features
- Provides an instant low pressure seal.- Capable of replacing all sizes of formed gaskets.- Offers good high pressure resistance, up to 5000 psi / 355 bar.- Exhibits high temperature resistance, withstanding temperatures from -55°C to +200°C.- Does not creep or shrink after curing.- Ensures uniform stress distribution, eliminating the need for re-torqueing.- The flexible cured polymer provides good vibration and shock resistance.- Thixotropic, non-drip property prevents migration of the sealant before and during cure.- Allows for metal-to-metal contact of flanges while filling surface irregularities.- Facilitates easy assembly and disassembly of components.- RoHS Compliant.- Features UV fluorescence for easy inspection.
Key Properties
- Chemical Composition: Acrylic.- Appearance: Red.- Viscosity @ 25°C: 500,000 mPa.s (cP) at 2rpm; 100,000 mPa.s (cP) at 20rpm.- Specific Gravity: 1.1.- Maximum Gap Fill: 0.5mm.- Handling/Open Time: 15 Minutes.- Working Strength (at 23°C): 1-3 Hours.- Full Cure: 24 hours.- Operating Temperature Range: -55°C to +200°C.- Pressure Resistance: Up to 5000 psi / 355 bar.- Chemical Resistance: Good against engine oil, water/glycol, and petrol (with varying strength retention).
Surface Compatibility
- Primarily designed for use on metal surfaces.- Achieves best results on clean, dry, and grease-free surfaces, though it tolerates slight contamination.- Roughened surfaces (approximately 25μm) generally yield higher bond strengths.- Copper and its alloys can accelerate the cure speed.- Oxidized or passivated surfaces (e.g., stainless steel, zinc, aluminum) may reduce cure speed.- Not recommended for contact with oxygen, oxygen-rich systems, or strong oxidizing materials.- Users should check compatibility with thermoplastics as the product may adversely affect some.
Known backups / known substitutes
- Permabond HH190: An anaerobic paste adhesive that eliminates pre-cut gaskets, provides an instant pressure seal, forms a tough, durable seal for high pressure, and removes the need for bolt re-tightening.- Permabond LH197: An anaerobic liquid designed for formed-in-situ gaskets, noted for its high flexibility, making it suitable for dissimilar surfaces and non-ferrous metals.- Permabond A905 or ASC10: Activators that can be used to reduce cure time, especially on inactive surfaces like zinc, aluminum, and stainless steel.
Comparison Note
Permabond MH196 offers significant advantages over conventional pre-cut gaskets by providing a "formed in situ" seal that conforms precisely to flange irregularities. This allows for improved load transmission due to metal-to-metal contact and eliminates the need for re-torqueing, as the product does not shrink, creep, or relax after curing.
