Topic: frustrating powdercoating

[mazingerzeca]

Hello. I took some parts of my bike to sandblast and powdercoat. It was the first time that I was using it, so I didn't take the frame, fortunately.
It was 3 months ago, the parts not mounted on the bike, and today I noticed some bubbles on the powdercoated parts. I scratched on the bubbles with a screwdriver and big layers of powdercoating went off leaving a rusted surface. I'm sure that the parts were sandblasted before powdercoating, but I don't know why this has happened. Was it a bad quality powdercoating? Which was the mistake?
I will have to paint again the parts, and also the frame, but I don't know if I will go powdercoating. Maybe a two-part paint will be better.

[eastoak]

sounds like bad prep. it's important to go to a shop that has experience with coating frames or you could find powder coated threads, races etc. my swing arm was not properly degreased and the grease ran out of the hole and onto the powder coat while it was in the oven. needless to say it had to be redone. the rest of the bike looks good but next time i'll go to a shop that has more experience with frames. take your parts back and have them redo the job because a properly done job should last for many years i like the powder coating much better than paint.

[digiacomo racing]

sounds like a Tijuana special. power coaters are hard to find. I also learned the hard way, i gave my power coater my frame and he didn't plug any of the holes and power coating was in the steering stem and all the holes. I feel your pain

[mazingerzeca]

I protected all the holes and threads with screws. No problem with that. And no problem with some of the parts, but on some of them it peeled like an egg. I will take the parts again to them and see what happened. I was wondering if it was a problem inherent to powdercoating.

[MCRider]

I protected all the holes and threads with screws. No problem with that. And no problem with some of the parts, but on some of them it peeled like an egg. I will take the parts again to them and see what happened. I was wondering if it was a problem inherent to powdercoating.

I was/am afraid of what you have mentioned. I interviewed Indy Powdercoating and he said its ALL in the preparation. They claim to do everything. I give him my frame, clean as i can give it without too much work. He blasts it, degreases, masks off the tabs and threads that need it, plugs the holes with nylon plugs, etc. Says they've done thousands of motorcycle frames and I think that's right. So he'll get my business with fingers crossed. But everyone, builders especially tell me go Powdercoat not paint. As he pointed out, OEM big on Powdercoat now except for body parts.

Thinking of having my rims to match the frame.

We'll see.