Supersonic spray surfaces must be sprayed on the same day to avoid rust and contamination escape. After sandblasting, if there is rust or contamination, the surface shall be sandblasted first and then sprayed at supersonic speed.
As the product has a special primer on the metal surface, it is recommended to use flexible polyurethane one component moisture curing agent or two-component primer.
For smooth concrete surfaces, supersonic spraying shall be carried out to ensure that the supersonic spraying surface is 125 microns. Sandblasting or shot peening is an appropriate method to obtain roughness.
Before supersonic spraying, the surface of concrete is polluted by oil, grease and dust. It must be cleaned with detergent. High pressure cleaning of supersonic spraying equipment requires high adhesion to remove contaminants.
All HVOF sprayed surfaces shall be clean and dry, free from moisture, dust, oil, grease, surface chemicals and other contaminants.
Steel or stainless steel surface: the specific structure of the steel surface must be treated with supersonic spray tungsten carbide with a roughness of 75 microns. Cleanliness and sandblasting cleanliness should be close to or close to the requirements of metal white.
Before injecting tungsten carbide by supersonic spraying, excessive rust must be removed mechanically“ The "solvent cleaning" method enables you to remove all oil, grease, welds and other surface contaminants.
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