the problem is the can. I renember it was dodgy when it came in, when I looked at it last night it had crust formed on the sprayer, so I tried to clean it out with a brush and some paint thinner, and put a new sprayer on it, but it was like working bad and soaked my gloves. Maybe its defective from distributor. You also need to shake it very frequently compared to normal paint, and the pressure is pitiful. But for a $40 can of spray paint thats really bad IMO. I remember last year when I tried to paint a sample piece it was also basically bad. I think what happened is when I first used the can, after using it, it got stuck on, and I took the sprayer out and cleaned it out with paint thinner and left it there, then loosely reinserted the sprayer, but over a year it got crusted over... (but I have paint cans (rustoleum) next to it that are 3-5 years old, while rusty, they have 0 problems). The ESD dissipation paint spray can I got from MG chemicals a while back too also had poor performance (for resistor lead bender project). They have something going on with their spray cans.
I just would have thought for such a expensive product they would make it a little better, because 5$ cans beat it that are 4x older).
I bought some paint brushes so I can rework the feed to the horn because a bit of paint accumulated in there and when I was cutting it off to make the apature rectangular again, I left some bald spots, so I will sand it with a stick and repaint that area by hand.
But the resistance from MG chemicals nickel paint seems low, from the front of the horn to the rear flange (fully coated on both sides), the resistance is <1.5 ohms, but I know that having non conductive spots on the rear feed channel of the horn will be bad, but repainting a square centimeter by hand is not the end of the world, I got a set of tiny brushes that have a head the size of a match head. I was initially going to try with a Q-tip but I thought to just get some brushes lol
I maybe recommend if you get MG chemicals products, just buy it from digikey, not the cheapest distributor.
tldr: bad experience in general with MG chemcials spray products but fine experience with other products.
I need to make a tiny sanding stick, which I am not looking folward to.