In need some serious help

[darkstarrider]

Hey Everybody
I need help. This is the first time painting and I have run into a serious problem. I painted my bike with PPG OMNI paint, using a simple base color. I followed the tech sheets to a tee. I sprayed on an etching primer,2 light coats, followed by three coats of build primer. I wet sanded the primer with 1000 grit paper taking out the orange peel, then sprayed my base coat. followed by a single clear coat. I let the paint dry for about 27 hours, and laid out the flames. After masking I made a mistake and tried to remove some of the tape to reapply. When I did the color coat peeled right off. along with a few small spots of primer. Can anyone tell me where I went wrong? I feel like an idiot. Thanks

 

[TAZ]

A couple of reasons why the basecoat peeled off. This could be because the base we sprayed on dry. Dry paint does not have good adhesion.

The peeling paint could also be caused because 1000 grit is pretty fine to be sanding primer before you are ready to paint. Most of the time we finish primer with 320 to 400 grit.
It could also be a little of both of the above.

As far as the peeling primer in spots, this could be caused by the metal not being cleaned before you primered. Another cause, could be you sprayed the primer on too dry.

Don't feel bad, it's happened to all of us one time or another.

Don't forget you will also need to sand the clear before laying out the flames. Once you spray the flames, then you reclear.

 

[Jim]

Don't feel bad,we all gotta learn, usually the hard way!Paint only sticks by two means,a chemical bond or a mechanical bond.It sounds like you had neither at the time. Sand paper grit is just as important as everything else in painting.If i started posting the mistakes I made,I'd still be typeing.....tomorrow.

 

[darkstarrider]

Thanks for the replies and positive reinforcement, I am going to start over again, and see what happens. If I can't do it I will just cover everything with red duct tape. Ha Ha

 

[rex]

Be very conseous(sp) of the temp and the etch primer.If the etch primer changes color to an orange it's sucking up moisture and everything on top is compromised-hard to tell where you are but it's happened down here many times.As they said with the dry coats,if your reducer is too fast it'll compromise adhesion along with that.When a primer says reducer is optional like I believe the Omni primer does,I always reduce it to slow it down some and get some flow.Another problem for your location right now could be low temps and curing,anything below 60 degrees the stuff will flash off and dry but the chemical curing really slows down to practically nothing.