Devcon Maintenance and Repair Solutions - Sintemar

Field Application Reports
Products:
Application Date:
Customer:
Industry:
Location 98
Transformer Oil Leak
Repair
Flexane® 80 Putty
4/22/96
B.C. Hydro
Utility Power Distribution
Problem:
Over several years of service, existing caulking sealant would harden and crack compromising the seals
on this Step Down Transformer Tap Changer. Water and moisture would seep into the transformer
causing a catastrophic failure, often exploding. Step Down Transformer replacement cost was $8K.
Solution:
Seal areas were roughened to remove existing caulking material and paint. Repair areas were then
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 adhesion from 25 pli to
50 pli. Two primer system is always recommended for metal substrates in wet or outdoor operating
conditions. Flexane 80 Putty was applied and smoothed forming a new seal. Flexane 80 Putty will
remain flexible, (350% elongation), while providing a vibration and climate resistant seal. GoJo hand
cleaner was used to smooth and sculpt Flexane 80 Putty following gel point. Re-sealing cost using
Devcon materials totaled $250.