Devcon Maintenance and Repair Solutions - Sintemar

Field Application Reports
Products:
Application Date:
Customer:
Industry:
Location 1
Transformer Oil Leak
Repair
One Minute Epoxy / Flexane® 80 Putty
2/14/96
B. C. Hydro
Utility Power Distribution
Problem:
Inspection of 4Kv and 12Kv transformers revealed excessive leaking oil from both the bushing, flange
and fastener areas. The leaking was so severe that either side of the transformer tank was covered with
a thick film of oil. De-energizing and installing new gaskets would require a 6 week shutdown.
Shutdown and repair cost was estimated to be $70K.
Solution:
Leaking or repair areas of the transformer were sandblasted to a SSPC-SP5 white metal finish. One
Minute Epoxy was applied to plug all active leaks. Following confirmation that all leaks had stopped,
repair areas were chemically cleaned using Cleaner Blend 300. Both FL10 and FL20 Primers were
applied and each allowed to cure or dry for 15 minutes. Using both primers will improve Flexane 80
Putty adhesion from 25 pli to 50 pli. Flexane 80 Putty was applied to a thickness of 1/8”, extending
beyond the One Minute Epoxy by 1-2 inches. GoJo hand cleaner was used to smooth and sculpt
Flexane 80 Putty following gel point. Devcon’s repair cost was $4.5K with only a 3 day shutdown..