2nd coating

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RyanZ71
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Joined: Thu Dec 26, 2019 11:22 am
My Location: Missouri

2nd coating

Post by RyanZ71 » Thu Dec 26, 2019 11:27 am

Good day. I am new to powder coating, I am only doing tumbler cups right now. My question is, I tried to do a second coating on a cup and it came out really rough feeling and when you rub it, it picks up everything it turn white like it’s taking your skin off with it. How do I do a 2nd coat or can you not do that? Some of my designs I want to do will require me to cover up part of the design so I can do the other parts. Thanks in advance

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duke46
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Re: 2nd coating

Post by duke46 » Fri Dec 27, 2019 2:43 pm

Sounds to me like you are losing your ground when you try doing the second coat?
Some of the low end guns do not do very well on second coats.
It also helps to have a dedicated 8' ground rod that can be placed like in a damp place if possible?
All I have said is said just for meanness so I don't have to argue with anyone!

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RyanZ71
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Joined: Thu Dec 26, 2019 11:22 am
My Location: Missouri

Re: 2nd coating

Post by RyanZ71 » Sat Dec 28, 2019 12:06 pm

It is a cheap gun from harbor freight. I’ve also read that if you only bake it for half the time it may improve the second coat. I started with a cheap one cause I didn’t know whether or not I would like doing it. Come to find out I find it a little fun to do. Also need to figure out how to keep the coating from getting inside the cups rim.
Thanks for the help

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duke46
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Re: 2nd coating

Post by duke46 » Mon Dec 30, 2019 9:25 am

Columbia Coatings has these stands for sale
https://www.columbiacoatings.com/masking-stands

Most cup guys make their own using large washers and threaded rod. There are some videos on You Tube that should help you out.

Buying an EZ 50 powder coat system would be just right and also do a good coating job and a lot of cup guys use it. Eastwood also has some guns and they are not real expensive but the way they sell their powder is high.

The Harbor Freight powder is made over seas and is an epoxy and not good for outside use and does not coat all that well.
All I have said is said just for meanness so I don't have to argue with anyone!

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rassbot
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Joined: Wed Jan 15, 2020 12:29 am
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Re: 2nd coating

Post by rassbot » Wed Jan 15, 2020 1:01 am

duke46 wrote:
Mon Dec 30, 2019 9:25 am
Columbia Coatings has these stands for sale
https://www.columbiacoatings.com/masking-stands
Sweet! Thanks I may pick one up. 8-)

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