SignalTraffic Forums

by **Easy** on Wed Mar 13, 2013 9:50 pm

How is it that you guys get your signals power coated? every place around here has told me that cast aluminum releases are bubbles during the heating process. I thought that they were full of it so I had a Darley bell powder coated, and it did let out air bubbles. :shock:

It looked l like [*poopoo*]! What gives?

by **JVC8230** on Wed Mar 13, 2013 9:57 pm

Weird. Maybe it is a problem with their particular process?? Lets see a pic of the part you had done.

by **Easy** on Wed Mar 13, 2013 9:59 pm

JVC8230 wrote:Weird. Maybe it is a problem with their particular process?? Lets see a pic of the part you had done.

I stripped it to try another place. :lol:

It looked like a bunch of little air bubbles that popped.

by **JVC8230** on Wed Mar 13, 2013 10:00 pm

Easy wrote:
JVC8230 wrote:Weird. Maybe it is a problem with their particular process?? Lets see a pic of the part you had done.

I stripped it to try another place. It looked like a bunch of little air bubbles that popped.

LOL!!

by **vaughn** on Wed Mar 13, 2013 11:05 pm

No kidding? I havent really looked into it myself nor have I heard of bubbles happening in the process. I'm thinking it's the best way to go as far as looking good or just a rock solid coating. Seems everyone here has powder coated there signal with no hick ups.
It has to be the process or the operator. A paint shop wouldn't let something go with bubbles in the paint and if it happened they would redo it until it looks like Nicks 4 way. I mean your paying for a service and as a business owner I can tell you if the projects not done correctly and in my case perfect then you do it again and again until perfection is achieved. Of course I've seen some shoty work that makes me wonder.
I can see if you told them you don't care how it turns out just powder it and send it threw the oven. If you both agreed on a price the powder coater should be able to powder coat a chocolate bar :shock:

and have it turn out perfect. I can't imagine one having powder coated something then take it home and blast the coating off. If there were bubbles in the paint Mr. powder shouldn't have charged. If you hear what you see is what you get pay me, it's the operator. I can see Mr. powder saying "Nothing we could do, it's the metal it happens" that's telling me it's the operator.
I don't know but I wonder how much one would charge to powder coat a chocolate bar? 1st you'd have to hire a reserch team and plan on having them hard at work for some ten years. It would cost you thousands!

by **Easy** on Wed Mar 13, 2013 11:19 pm

vaughn wrote:No kidding? I havent really looked into it myself nor have I heard of bubbles happening in the process. I'm thinking it's the best way to go as far as looking good or just a rock solid coating. Seems everyone here has powder coated there signal with no hick ups.
It has to be the process or the operator. A paint shop wouldn't let something go with bubbles in the paint and if it happened they would redo it until it looks like Nicks 4 way. I mean your paying for a service and as a business owner I can tell you if the projects not done correctly and in my case perfect then you do it again and again until perfection is achieved. Of course I've seen some shoty work that makes me wonder.
I can see if you told them you don't care how it turns out just powder it and send it threw the oven. If you both agreed on a price the powder coater should be able to powder coat a chocolate bar and have it turn out perfect. I can't imagine one having powder coated something then take it home and blast the coating off. If there were bubbles in the paint Mr. powder shouldn't have charged. If you hear what you see is what you get pay me, it's the operator. I can see Mr. powder saying "Nothing we could do, it's the metal it happens" that's telling me it's the operator.
I don't know but I wonder how much one would charge to powder coat a chocolate bar? 1st you'd have to hire a reserch team and plan on having them hard at work for some ten years. It would cost you thousands!

Perhaps I should have explained myself better. :blush:

I took the bell to test a color out.....the guy didn't charge me. The bubbles are supposed to form when they put the parts in the " oven " or at least that's what I've been told by about 4 powder coaters out here. The bubbles are supposed to leach out during the heating process.

by **Troy** on Wed Mar 13, 2013 11:33 pm

Easy wrote:Perhaps I should have explained myself better.

by **TheHOODLUM** on Wed Mar 13, 2013 11:36 pm

I didn't have that problem I was just unhappy that there are some thin spots and some thick and heavy spots on my parts. There is not any bubbling issues and the shop didn't mention any of that to me.

by **64ragtop** on Wed Mar 13, 2013 11:48 pm

A friend of mine owns a powder coating shop in Chatsworth. He "Pre-bakes" everything he coats. The pre-bake process causes the item being coated to "out-gas". What that basically means is that any gasses or impurities that are trapped in the pores (lack of a better word) of the item to be powder coated are "baked" out of the metal prior to applying the powder. The bubbles you experienced would be the "out gassing" taking place underneath the powder coating (NOT GOOD!). I would ask your powder coater to prebake your parts. I don't know what the bake time should be, but it think it is for a few hours. Hopefully he is aware of this step :blink:

I have had many cast aluminum parts done by my friend over the years and have never experienced any "out gassing" bubbles before.

by **jab8356** on Thu Mar 14, 2013 4:01 am

I've had 5 signals powder coated and one of them has some air bubbles in the finished product. They never told me why and I didn't ask. It was a rougher casting and I just assumed that had something to do with it.

SignalTraffic Forums

What gives?

What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Re: What gives?

Who is online