Do I have to sand it all the way down??

Metal4130

Eat, Sleep, Ride, Groove
Location
Chicago
I'm starting to prep for paint on my ski and I wanted to know about sanding. The ski had been painted once before and my question is should I sand the ski all the way down to the gel coat? Do I even need to sand it all the way down could i just rough up the paint a bit? Thanks
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
Personally I like to get as much of as possible - think of the weight savings! :Banane01:

I think you should get at least the previous coat off. Then, use a self-etching epoxy primer ,and you should be set.
 

Matt_E

steals hub caps from cars
Site Supporter
Location
at peace
So tell me...what's up with you people having dirty fingers when trying to fit me for contacts?


:aargh4:
 

daylite67

Paint Ride Shoot Edit
Location
Seattle Wa
If the other paint is on there to stay and isn't showing signs of lifting then you should be fine with just sanding everything smooth. I usually sand everything down with 400 grit then after washing and degreasing it shoot the whole thing with an epoxy primer, and my stuff turns out just fine. If you have nicks and dings they'll show through, because epoxy's don't fill well. But if you have done a good job on your prep work they are great because they bond well and act as a self sealer saving you an extra step.

Daylite
 

Shonuff

I've got the glow
Site Supporter
Location
Memphis
daylite67 said:
If the other paint is on there to stay and isn't showing signs of lifting then you should be fine with just sanding everything smooth. I usually sand everything down with 400 grit then after washing and degreasing it shoot the whole thing with an epoxy primer, and my stuff turns out just fine. If you have nicks and dings they'll show through, because epoxy's don't fill well. But if you have done a good job on your prep work they are great because they bond well and act as a self sealer saving you an extra step.

Daylite

Daylight, how do you wash it, how do you degrease it, and how do you keep your painting dust-free?

Thanks.
 
daylite67 said:
If the other paint is on there to stay and isn't showing signs of lifting then you should be fine with just sanding everything smooth. I usually sand everything down with 400 grit then after washing and degreasing it shoot the whole thing with an epoxy primer, and my stuff turns out just fine. If you have nicks and dings they'll show through, because epoxy's don't fill well. But if you have done a good job on your prep work they are great because they bond well and act as a self sealer saving you an extra step.

Daylite


yeah, it turns out just OK.......come on daylite, youre an authority here....just tell these bitches what to do! :bigeyes: :biggrin:
 

daylite67

Paint Ride Shoot Edit
Location
Seattle Wa
I like to wet sand with soapy (Dawn) water.
Then wipe it down with laquer thinner.
Then hit it with a tack cloth right before painting.
Don't touch your boat once you have started this process with your bare hands. I use vinyl gloves through the whole process.

All of my paint jobs have some dust in them somewhere, I don't have a professional paint booth.
To keep this to a minimum I clean my painting area.
Wipe down the walls and sweep the floor really well.
Once the dust has settled from the sweeping wet the floor down really well.
Any dust that happens to get stirred up will stick to the water on the floor if you are lucky enough to have it miss the ski on the way down.

Base coat/clear coat is great for hiding dust imperfections. During your first coat of clear you will see some specs that you missed, and some that you SWEAR were NOT there before you started clearcoating. Those are not the end of the world. Once your first coat of clear has cured long enough to sand you simply wet sand out the bumps with soapy water, wipe down with your degreaser and do a final wet coat. This time around most of the boat should be pretty smooth and assuming that you didn't paint it wearing your favorite Chistmas sweater with your girlfriend's persian cat under your arm, there should be minumal sanding. I use PPG's DC3000 clear, if I paint over my first coat within 3 days (I reclear the same day just because I am paranoid and the stuff sets up in 1 1/2 hours) it'll still have a chemical bond, meaning I don't have to sand down the whole ski for a mechanical bond which means I am not creating as much dust as I did the first time around and it's a quick and easy clean up.

If for some reason you have a horrible dust speck in your final wetcoat you can repeat the process, or wet sand it with some 2000 then cut and buff the paint using cutting/polishing compounds. I hate cutting and buffing, I love painting.

This is what I do and it works for me.
 
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