Arc Spray Coating
Arc spray is a wire-based thermal spray process that delivers high productivity for metallic protection of large surfaces, dimensional restoration and boiler tube applications.
When is it the right choice?
It is used where large areas, on-site application, corrosion/erosion protection or a cost-effective metallic layer are required.
Selection Based on Project Conditions
What does it deliver when used correctly?
- High deposition rates on large surfaces
- Can be applied on site
- Corrosion and wear protection with a wide range of wire alloys
- Suitable for dimensional restoration of large parts
FAQ
What is arc spray (twin wire) coating?
Arc spray is a thermal spray process in which metal melted by an arc struck between two wire electrodes is propelled onto the surface by compressed gas. It provides fast, cost-effective protection for large surfaces.
In which applications is arc spray preferred?
It is preferred for boiler tubes and panels, equipment with large surfaces, dimensional repair and moderate wear or corrosion protection. Its suitability for both workshop and on-site application is a further advantage.
What is the difference between arc spray and HVOF?
HVOF produces a denser, harder coating with lower porosity; arc spray is faster and more economical and suits large areas. The choice depends on budget, operating conditions and expected service life.
Does UMEK build its own arc spray equipment?
Yes. UMEK manufactures its twin wire arc spray power unit in its own workshop.
Is It Right for Your Part?
Send us photos, technical drawings and operating conditions, and we will evaluate the process and material system together.