- Why Twin Wire Thermal Arc Spray? Is it any better than weld-overlay?
- Our product is covered by a standard one-year warranty against spauling, cracking, peeling and rust bleed through.
- Yes! Arc Spray has a higher deposition rate, causing no thermal stress to the base metal. Twin Wire Thermal Arc Spray is applied to the base metal in small overlapping, seamless, multiple layers resulting in a stronger and longer lasting coating.
- What kind of life can be expected from Twin Wire Thermal Arc Spray?
- Twin Wire Thermal Arc Spray has been proven in Batch Digesters to last up to 10 – 12 years and is projected to last 16 – 20 years in a Continuous Digester.
- Like weld-overlay; is there annual maintenance involved with the Twin Wire Thermal Arc Spray?
- No. In the weld-overlay process there are too many variables to contend with. Surface impurities being drawn up from base metal into the weld puddle can create pinholes and crater cracks contributing to a lack of fusion. In the Twin Wire Thermal Arc Spray application, we use a steel grit blast process to clean the base metal to white metal prior to applying the Arc Spray; thus creating a smooth, even coating with a sandpaper-like appearance.
- What is the difference in the cost of weld-overlay compared to the Twin Wire Arc Spray?
- Depending on base metal conditions; generally our total cost averages 30 – 40 % less than that of weld-overlay.
Twin Wire Arc, Inc.
6889 US Hwy 341 S
Roberta, GA 31078
PH: (478) 836-3485
Fax: (478) 836-3496