When a transformer on an
aluminum smelter plant at a power
station had an oil leak, authorised
Belzona contractor, C & D
Environmental Co was tasked with
finding a reliable leak repair solution.

The base of the transformer was
heavily corroded in one corner.

Belzona’s engineers decided to
fabricate a tray that could be bonded
to the corroded area, creating total
encapsulation of the fins and
preventing future corrosion.

Internal surfaces and edges of the
tray were prepared using an MBX
Bristle Blaster. The pin hole leak was
plugged using Belzona 1291(ESMetal)
a rapid curing, emergency live
leak sealing putty stick. The bottom
vertical edges and transformer base
were cleaned and degreased using
Belzona 9111 (Cleaner/Degreaser).

Tray and transformer edges were
then wetted out using Belzona 1831
(Super UW Metal). Finally a
corrosion resistant coating, Belzona
5831 (ST Barrier) was applied to the
underside of the tray, the edges and
transformer lip to protect the repair.