Grade 850 (Silver Paste)

        Fast repair (fixtures in 10-20 minutes)

        Fast cures at room temperature (1-3 house without primers)

        Fills gaps to .020" (diametric)

        A true "have-to-have" product

        
Hernon Metal Cement #850 is a single component, silver color
        paste designed for quick repairing of worn machinery parts.
        The compound develops a high strength polymer with superior compression
        strength, excellent chemical and temperature resistance.  The
        bonded assembly often doubles the strength of press fitted parts.

        
Grade 850 Applications:

        

          
Repairs worn metal parts like bushings, shafts.
          
Repairs worn housings, end bells, salvages severally worn
          parts.
          
Repairs wallowed keyways in shaft and spline assemblies.
          
Refits worn couplings.
          
Refits loose screws, spun bearings.
          
Use on new installations to prevent backlash, wear.
          
On new installations, corrosion is minimized (no air pockets).
        

        
Special Physical Properties:

        

          
Superior ultimate compression strength: greater than 46,000
          psi.
          
Shear strength = 3,000 psi (steel), 600 psi on unetched aluminum.

           

          Note: use of EF primer 50 will significantly reduce cure time,
          but may reduce ultimate strength.  Gently heat the assembly so
          that the bondline is subjected to a temperature of 250F for 30
          minutes for full cure.  Primer is recommended to restore cure
          speed when used at temperatures below 50F, and when gaps exceed
          .010 inches, diametrically.

        

        
Comparison Chart

        
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