Devcon Maintenance and Repair Solutions - Sintemar
Devcon Maintenance and Repair Solutions - Sintemar
Devcon Maintenance and Repair Solutions - Sintemar
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Field Application Reports<br />
Products:<br />
Application Date:<br />
Customer:<br />
Industry:<br />
Location 43<br />
Cement Agitator <strong>Repair</strong><br />
Wear Guard Fine Load<br />
9/21/92<br />
Chicago Road Service<br />
Cement Manufacturing<br />
Problem:<br />
The fins or paddles within this portable cement mixer would receive extreme abrasive wear from<br />
continually agitating cement. Previous method of repair was to protect fins or paddles by covering with<br />
U.H.M.W. This repair procedure was expensive <strong>and</strong> time consuming.<br />
Solution:<br />
<strong>Repair</strong> surfaces were s<strong>and</strong>blasted to a SSPC-SP5 white metal finish. Exp<strong>and</strong>able metal was tack welded in<br />
a raised position 25 mils above the substrate. Tack welding exp<strong>and</strong>able metal above the substrate<br />
improved the mechanical bonding properties of Wear Guard Fine Load. Weld slag was removed using a<br />
grinder <strong>and</strong> wire wheel attachment. All surfaces were then chemically cleaned using Cleaner Blend 300.<br />
Wear Guard Fine Load was applied using a trowel to a thickness of 1/2”. Wear Guard Fine Load was<br />
pressed through the exp<strong>and</strong>able metal forcing complete contact onto the substrate surface. Wear Guard<br />
Fine Load was smoothed, contoured <strong>and</strong> feathered using acetone as a thinning agent following gel point.