Flanges that have a small cut or gouge may be repaired in the following manner:
2) Mix a small amount of Steelstick™ according to instructions. Force the material well into the cavity, and allow a slight protrusion above the face of the flange. (Fig. 1)
3) After Steelstick™ has set, (typically 15 - 20 minutes), sand the surface smooth using 400 to 600 grit wet cut abrasive. (Fig. 2)
4) Flange is now ready to return to surface.
Severe Pitting/Corrosion -One Side
2) Apply ML900 Silicone Lubricant & Release Agent to surface of the good or new flange. Also apply it to the assembly bolts and then insert them into the flange holes.
3) Apply ML400 Machinable Repair™ to the surface of the pitted flange at least 1/16" thick. (Fig.3)
4) Assemble both flanges and bolt together. Wipe off excess material and allow curing fully. (Fig. 4)
5) Disassemble and clean/grind around bolt holes. Flange is now ready to return to service.
NOTE: This repair should not be attempted on flanges with operation temperatures higher than 300°F.
Severe Pitting/Corrosion -Both Sides
Flanges that are scored or pitted on both surfaces may be repaired in the following manner: (Fig.'s 5 & 6):
1) Abrade surface of pitted flanges by sanding, grinding, power-brushing, or grit blasting. Clean with Metal Prep II™ Degreaser.
2) Plug all bolt holes with corks, wooden plugs or putty.
3) Prepare a flat, smooth metal plate that extends beyond the diameter of the flanges to act as a mold for the new gasket surface. Coat this with ML900 Silicone Lubricant & Release Agent.
4) Coat both pitted flange surfaces with ML400 Machinable Repair™ at least 1/16" thick.
5) Install smooth metal plate between flanges, clamp together, wipe off excess material and allow curing fully.
6) Disassemble and clean/grind areas around bolt holes. Install new gasketing and return to service.
Note: This repair should not be attempted on flanges with operating temperatures higher than 300°F.
No posts found