Not all powders are created equal

[Ageingrodder]

I'm pretty new at PC so when I recently had problems with Hot Coat Semi-gloss black, I assumed it was me, my prep, the metal type, or my equipment. Since that time I tried many things including different cleaning methods, different metals, air pressures, etc. I also confirmed and reconfirmed grounding and current. Nothing seemed to work. The powder acted as if I didn't have a charged field. The only powder that would stick was what gravity held on the flat surfaces. Everything else just fell in a pile.

I finally tried a different powder by the same manufacturer, Hot Coat stamped steel, and things worked beautifully. I also had good luck using Caswell's Extreme chrome. The equipment, setup, and even metal was the same with all three powders. Oh yeah, I am using a Harbor Frieght gun.

Any ideas why one powder won't work and the others do? I contacted the company tech and he said he had no idea. Great help there.

Thx.

[SCOTTRODS]

I'm pretty new at PC so when I recently had problems with Hot Coat Semi-gloss black, I assumed it was me, my prep, the metal type, or my equipment. Since that time I tried many things including different cleaning methods, different metals, air pressures, etc. I also confirmed and reconfirmed grounding and current. Nothing seemed to work. The powder acted as if I didn't have a charged field. The only powder that would stick was what gravity held on the flat surfaces. Everything else just fell in a pile.

I finally tried a different powder by the same manufacturer, Hot Coat stamped steel, and things worked beautifully. I also had good luck using Caswell's Extreme chrome. The equipment, setup, and even metal was the same with all three powders. Oh yeah, I am using a Harbor Frieght gun.

Any ideas why one powder won't work and the others do? I contacted the company tech and he said he had no idea. Great help there.

Thx.

That'd be some really old powder. Call Eastwood and tell him of your issue, and see if they'll credit you or send you a second batch of new stuff free.

[Ageingrodder]

Thats interesting. Customer Serv said they had problems with that powder, but Tech says it was a color issue. I guess we will find out because they are sending a new batch from a different source.