Stainless Steel Powder Coat

Does it have to do with surface tension hardness chemical compostion etc of the metal.

Stainless steel powder coat.

You have to consider several factors. Adhesion of powder coating to stainless steel. What is stopping the adhesion of powder coatings to stainless steel. The product shows a flat or a matte effect.

I always have to ask why a product would be made of stainless steel and then powder coated. I know color is a factor but it is still surprising to invest in stainless steel and then cover it with an organic coating. Stainless steel passivates to make it corrosion resistant and is usually left raw for its silvery luster. A stainless steel enclosure unpainted in the direct sun will reach 300 f inside the cabinet but powder coat it bright white and the temperature will stay below 120 f in full sun.

What is causing this adhesion problem. One of the factors you will have to look at is whether the stainless steel you are buying is powder coated. The powder coated steel mainly uses acrylic powder polyester powder etc. We have had success on 304 and limited on 430 but no success on 316.

Learn the why and how of covering stainless with a colorful finish. The electronics last much longer if you keep it cooler. If i were to powder coat stainless steel i would want to acid etch wet process or scuff sand mechanical process to. Clearly the type of stainless steel might also makes a difference in that a 304 stainelss might give better adhesion than a 316 stainless.

From the above described process it is clear that the surface roughness of the 304 316l stainless steel material determines the spraying effect and there is a certain degree of roughness that can get a reliable surface adhesion. Yet sometimes people finish stainless with paint powder coat or ironarmor coating.