- Dealing with the steel surface solvents to eliminate fats, soluble salts, dirt etc varies. ;
- Sandblast grit angular 25μ- 75µ (SA3)to obtain the best angular profile: 50m-75m;
- There should be no moisture on steel and spraying the surfaces should not be performed when the steel and T < 3 ˚C (above the dew point)
- The spraying must be done within the 4 hours after blasting.
- Distance of 15-25cm gun
- Spray angle: 90°C-70°C
The wires are covered by ISO 14919:2015 and ISO 2063:2005
Comparison | Zn/Al 85/15 | Zn | To the |
---|---|---|---|
Density g / cm³ | 5,71 | 7,18 | 2,7 |
thicknesses | |||
50µ | 0,32 Kg/m² | 0,58 Kg/m² | |
100µ | 0,63 Kg/m² | 1,17 Kg/m² | 0,75 Kg/m² |
150µ | 0,94 Kg/m² | 1,68 Kg/m² | 1 Kg/m² |
200µ | 1,25 Kg/m² | 2,34 Kg/m² | 1,5 Kg/m² |
Table roughness request
Thickness in microns | Zn in / min | Zn/Al 15 | Al and Al / Mg |
---|---|---|---|
50 | 7,8 | 7,8 | |
100 | 7 - 8 | 7 - 8 | 11 - 12 |
150 | 11 - 12 | 11 - 12 | 12 -13 |
200 | 11 - 12 | 11 - 12 | 14 -15 |
250 | 12 -14 | 12 - 14 | 15 - 16 |
Recommended Minimum thickness according to ISO 2063
Iso 12944-2 | Zn/Al 85/15 | Zn | To the | ||||
---|---|---|---|---|---|---|---|
Micron | with painting | no painting | with painting | no painting | with painting | no painting | |
Im 2 | sea water | 100 | NO | 100 | NO | 150 | 200 |
Im 3 | Soft water | 100 | 150 | 100 | 200 | 150 | 200 |
C 2 | rural Atmosphere | 50 | 100 | 50 | 100 | 100 | 150 |
C 2 and C 3 | Urban | 50 | 100 | 100 | 200 | 150 | 200 |
C 4 and C 5 | Industrial | 100 | 150 | 100 | NO | 100 | 200 |
C 5-M | Maritime | 100 | 150 | 100 | 150 | 100 | 200 |
C 1 | dry Inside | 50 | 50 | 50 | 50 | 100 | 100 |