Stainless Steel Powder Coat

316 stainless steel tube is one of the grades that you might choose to buy selecting the right series or grade may be such a hard task.

Stainless steel powder coat.

I know color is a factor but it is still surprising to invest in stainless steel and then cover it with an organic coating. You have to consider several factors. 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. Learn the why and how of covering stainless with a colorful finish.

Powder coating stainless steel is risky at best and i would be very cautious. Does it have to do with surface tension hardness chemical compostion etc of the metal. 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. The powder coated steel mainly uses acrylic powder polyester powder etc. Yet sometimes people finish stainless with paint powder coat or ironarmor coating. 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.

One of the factors you will have to look at is whether the stainless steel you are buying is powder coated. Stainless steel passivates to make it corrosion resistant and is usually left raw for its silvery luster. We have had success on 304 and limited on 430 but no success on 316. 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. What is causing this adhesion problem.