Proper prep for painting a bottom deck?

[swapmeet]

I'm going to repaint the bottom deck of my Chan this winter. A little clear has peeled off, and there are some other small scrapes and gouges i'd like to address.

I will be using automotive grade base clear from a local auto parts store.

My plan is to feather out any ugly spots, fill with phenolic balloons etc.
320 all the areas I intend to paint
Spray adhesion promoter
Spray primer, (wet sand @320)
Spray Base, (wet sand @500)
Spray Clear, (not sure what grit to sand at)
Spray Clear ( " " )
Spray Clear, wet sand up to 2000grit and polish.

I've seen the paint on some skis (including another Chan) delaminate when the bottom is painted. I'm hoping to avoid that issue if at all possible.
Does anyone have any specific suggestions on technique beyond what i've listed here?

 

[Big Kahuna]

SM. I would go with Dupont Nason series single stage urethane. This paint is durable as hell. It was designed as more industrial for dump trucks and such. I used it on several ski's and held up great. Really strong. I use to spin all over the hood and it never chipped or scratched. Save some time and money. But start sanding with 400 grit (wet), Better yet, use a DA sander with 320 and get all the clear off. see how the base coat holds up. may end up sanding it all off. Then final prep and sand with 600 then 800. Prime with a good primer and then shoot either a silver or white before you put on your color. I messed up and shot my deep red metallic over a dark grey primer and it just never popped good and had a brown tint at times. should have layed a light base coat color first.

 

[waksk8]

You don't want to sand base as soon as it flashes you can spray clear, normally you have a 24 hour window to get clear on, but I wouldn't wait.

 

[swapmeet]

Thanks BK. Currently the bottom is black with Ice Pearl. My plan is to go back over it with metallic black and maybe some blue pearl or something.

Since my ski has such a complicated/ awesome paint job, I wanted to try and use a metallic etc on the bottom to keep with the theme. But i'll take the Single Stage into consideration. That does sound durable.

 

[Ducky]

Im not very good with paint, but have you considered spraying gel coat?

 

[Big Kahuna]

They have good metallics also. I painted another SJ Met. Grey and it looked good.

 

[DAG]

Can you just wrap the bottom.of the hull with sweet gifs?

 

[Pablo]

Swap. Trust BK. single stage is a life saver and anything extra is a waste on skis unless it's gonna be a shop queen on display. I used HOK single stage fire-mist pewter on my old Freak and it's for sale now with the original paint job from 2010. The stuff is durable if u prep good and lay down a high build primer.


2010

2010

2015

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[swapmeet]

Ok I'll look for a metallic black single stage. Thanks ya'll.