Zinc (Zn) Spraying (Metallisation)

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Thermal spray process is applied to the sanded surface spraying the melted coating material which was in the wire or powder form. Thermal spray process aimes the protection of metal surface against corrosion (rusting).

Surface which is prepared by sanding should be coated as soon as possible. Oxygen and propane are used as the heat source for the melting process. Coating material which is prepared for the process by atomized is sprayed to surface via pressured air.

PROTECTION CHART FOR ALUMINIUM (Al) COATED AND PAINTED SURFACES

COATING THICKNESS

ENVIRONMENTS

1

2

3

4

5

6

7

8

100 µ

 

>20 years

>20 years

 

 

5-10 years

 

 

150 µ

 

 

 

 

 

>20 years

10-20 years

 

250 µ

 

 

 

 

 

>20 years

>20 years

 

PROTECTION CHART FOR ZINC (Zn) COATED AND PAINTED SURFACES

COATING THICKNESS

ENVIRONMENTS

1

2

3

4

5

6

7

8

50 µ

 

>20 years

 

 

 

 

 

 

100 µ

 

 

>20 years

>20 years

>20 years

5-10 years

 

 

150 µ

 

 

 

 

 

>20 years

10-20 years

 

250 µ

 

 

 

 

 

>20 years

>20 years

 

ENVIRONMENTS AND CORROSION RISK POTENTIAL

NO

CORROSION RISK

EXPLANATION

1

VERY FEW

OUTDOOR PLACES IN INLAND

2

FEW

OCCASIONALY HUMID PLACES IN INLAND 

3

NORMAL

HIGHLY HUMID DIRTY PLACES

4

NORMAL

COASTLINE AND INNER-CITY PLACES

5

HIGH

INNEROCITY AND ENDUSTRIAL PLACES

6

VERY HIGH

HIGHLY HUMID ENDUSTRIAL PLACES

7

VERY HIGH

COASTLINE PLACES WITH HIGH SALTINITY RATES

8

VERY HIGH

SALTY WATER ENVIRONMENT WITH TEMPERATE CLIMATE

Thanks to its thermal coating (flame spray) process, Okuyan Metal Mühendislik San. and Co. Ltd. has become a changemaker company in the transformator tank manufacturing industry in Turkey. A 100µ thick (600 g/m2) transformator tank's resistance life is 7 or 8 years longer than a transformater tank's which has been just painted with sanding.

Okuyan Metal Mühendislik San. and Co. Ltd. can produce 480 m2 coating in a month, 100µ (600 g/m2) thick, using zinc coating method in its transformator tank manufacturing facilities.