Devcon Maintenance and Repair Solutions - Sintemar

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Field Application Reports Products: Application Date: Customer: Industry: Location 120 Coal Diversion Gate Repair Flexane® 80 Putty 9/20/91 Linatex Corporation Mining Problem: These metal gates used to divert minerals for classification would receive extreme abrasive wear. The previous method of repair was to attached hardened plate or ceramic tiles to the gates. Attaching hardened plate added significant weight and the ceramic tiles would often break due to impact abrasion. Solution: The complete surface area of the metal gate was sandblasted to a SSPC-SP5 white metal finish. Surface area was then chemically cleaned using Cleaner Blend 300. Both FL10 and FL20 Primer were applied to the metal gate surface area and each allowed to cure or dry for 15 minutes. Applying both primers will improve adhesion of Flexane from 25 pli to 50 pli. Flexane 80 Putty was applied on the metal gate to a thickness of 1/8”. Urethane sheets, (.750” thick), were fabricated to cover the metal gates. Urethane sheet contact surfaces were roughened and chemically cleaned using Cleaner Blend 300. RU80 Urethane Primer was applied to the urethane covers and allowed to cure or dry for 15 minutes. A thin coat of Flexane Brushable was applied to the urethane covers to completely wet out the surface. The urethane sheets were positioned and compressed into place. Flexane 80 Putty provided a long lasting, flexible bond of the urethane sheets to the metal gates.
Field Application Reports Products: Application Date: Customer: Industry: Location 121 Bag House Tube Sheet Repair Plastic Steel® Putty 6/33/93 U.S. Steel Edgar Thompson Plant Steel Manufacturing Problem: Over months of service the weld seams, and tube sheet joints would wear from processing or filtering lime and dry dust particulate. The wear was so severe that air and material leakage occurred. Past repair procedure was to weld or reseal with RTV sealant. Both past repair procedures were time consuming and offered poor performance. Solution: Repair areas were first roughened to a SSPC-SP5 white metal finish using a grinding machine. Following roughening, all repair areas were chemically cleaned using Cleaner Blend 300. Plastic Steel Putty was mixed and applied as a filler to all worn metal areas on both the floor and wall seams. Following a partial cure of Plastic Steel Putty, (2 hours), Plastic steel Liquid was applied using a paint brush to lock in Plastic Steel Putty and to seal all potential pin holes. This repair process reduced downtime by 6 days. The overall cost savings using Devcon’s repair was estimated at $10K.
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Devcon Maintenance and Repair Solutions - Sintemar

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