Why use the electric arc or flame spraying.
In an aluminum coating obtained by electric arc grip is 2,5 times greater than the flame.
Other points in favor of the electric arc are: greater efficiency of the deposit, ease of work, safety for the operator, easy on and off, less maintenance, higher productivity per hour, reduction in operating costs, better appearance of the surface of the coating and ease of automation.
| T° C° | Particle velocity m / s | Tensile strength MPa | Porosity (V%) | |
| Electric arc |
4000 |
100 |
10-15 |
10 |
| Fiamma in gas |
3000 |
40 |
10 |
10-15 |
Thermal spraying is subject to EN ISO 14713 because it guarantees at least 20 years without the need for maintenance in very aggressive environments (categoria Im2) as the areas of the shoreline.
Extract from BS EN ISO 1473 (Im2 corrosive environment)
| Average length of years | Typology | Average thickness micron |
| >20 | Al Spruzzatura (ISO 2063) | 150 |
| Spruzzatura Zn (ISO 2063) | 250 | |
| 10<20 | Spruzzatura Zn | 150 |
| Zincatura a caldo | 150-200 | |
| 5<10 | Zincatura a caldo | 175 |
| <5 | Zincatura a caldo (ISO 1461) | 70-85 |