MRC 111 Machinable Repair Compound

MRC 111 Machinable Repair Compound is a two-component thixotropic epoxy metal composite material. The material is composed of high-performance epoxy resin and steel filler. MRC 111 is a excellent adhesive to metal, concrete, plastic, rubber and many other materials. MRC 111 has properties of excellent machinability, resistance to high temperatures and chemical corrosions, and wear resistance.


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Applications:

  • Repair all kinds of worn shafts, bushings, housings, keyways, threads
  • Repair topical scratches on hydraulic arm and the rail surface
  • Repair and protect enamel tanks, metal tanks, pipes, valves from chemical corrosions and high temperatures

Technical Data:
   Operating temperature: 232℃ (Dry) 93.3℃ (Wet)
   Hardness shore D (ASTM D-2240): 89
   Tensile strength (ASTM D-638): 400 kg/ cm²
   Compressive strength (ASTM D-695): 950kg/ cm²
   Adhesive Strength (ASTM D1002): 210 kg/ cm²

Chemical Resistance Data:
   Sodium hydroxide (0-50%) : E
   Sulfuric acid (0-80%) : E
   Hydrogen chloride acid (0-37%) : G
   Phosphoric acid (0-20%): G
   Ethanol : E
   *Notes: E = Excellent (Can be long-term immersed)
                    G = Good (Can be occasionally sprinkled, but need to remove)
                    NR = Not Recommend (Cannot be adhered to, material will be damaged)

Application Instructions:

  • Surface Treatment:
    Sandblasting the steel surface with chlorine-free abrasive. For external application, the surface should reach SSPC SP-10 standard, close to the white metal treatment standard. After sandblasting the surface, repair surface as soon as possible to prevent surface oxidation, then repair the damaged area properly.
  • Mixed:
    Resin :hardener mixed rate is 2:1 by either volume or weight.
  • Dilution:
    Do not dilute.
  • Application tools:
    Use a plastic spatula or plaster knife.
  • Application temperature:
    Material temperature: Keep at 55-95℉ (13-35℃)
    Substrate temperature: Keep at 45-105℉(7-40℃)
    The temperature difference between the substrate and the coating must not exceed 10℉(5℃)
  • Re-coating/curing time:
    Recoating in the time when material were still soft, within two hours, at 77ºF (25ºC). If the recoating time has been exceeded, polish the surface with sandpaper, grinding, or blasting. Before immersion application, fully cured in 36 hours at 25 ºC. When heating to force curing, the best performance requires 1 hour at 93 ºC, or 12 hours at 49 ºC.
  • Cleaning:
    Wash with methyl ethyl ketone or similar products.