MMO [Mixed Metal Oxide] Coating has been designed for use in
all cathodic protection applications. It consists of IrO2/Ta2O5, suitable
for use in soils, carbonaceous backfill, fresh and brackish water,
seawater and concrete. Mixed metal oxide coating is generally accepted by
the cathodic protection industry to be satisfactory for both chlorine and
oxygen evolving electrolytes.
Production of a quality product is
fundamental in every step of the manufacturing process. Strict quality
control procedures are followed throughout the coating process to insure
proper coating adhesion and loading. Based on accelerated life testing
conducted by an independent laboratory, Ti's MMO coating has proven
superior to other mixed metal oxide coatings currently being used. A copy
of this test report is available upon request.
MMO coating is
produced by applying solutions containing the precursor materials to the
specially treated titanium substrate. It is then thermally treated at
elevated temperature to convert the precursor materials to their oxides.
This paint - stove process is repeated many times until the desired total
loading of the MMO coating is obtained. The process achieves very good
adhesion properties between the coating and the substrate through
mechanical and chemical bonding.
MMO coating greatly prolong the
life of the anode (low wear rate)
MMO coating greatly prolong the
life of the anode (low wear rate) and provide excellent chemical corrosion
resistance such as acid condition. The standard outputs are as below.
However, MMO loading may be adjusted to suit a particular current density
or design life.