help with wet sanding tips

[Apollo]

Just bought a set of sideskirts that need to be wet sanded, primered and painted. Don't know how to paint or have the equipment, but want to at least do the prep work myself. Try and save on the painting price. Guy I bought them from says they need to be wet sanded before primer can go on. Never done that before.

FIgure it's just like regular sanding but with water and special paper. The skirts are fiberglass. Has anyone ever done this? Any tips?

Anything helps. Thanks

 

[DA_Integra]

Just bought a set of sideskirts that need to be wet sanded, primered and painted. Don't know how to paint or have the equipment, but want to at least do the prep work myself. Try and save on the painting price. Guy I bought them from says they need to be wet sanded before primer can go on. Never done that before.

FIgure it's just like regular sanding but with water and special paper. The skirts are fiberglass. Has anyone ever done this? Any tips?

Anything helps. Thanks

you'll be fine just sanding them at 220 grit. Spray the primer sand again at 220 then paint and clear, then wet sand with 2000+ grit. and then buff. When wet sanding just make sure the paper and surface your working on is always wet.

 

[G3GirL]

you'll be fine just sanding them at 220 grit. Spray the primer sand again at 220 then paint and clear, then wet sand with 2000+ grit. and then buff. When wet sanding just make sure the paper and surface your working on is always wet.

a 220 followed by a 2000 grit is a bit extreme. you should choose something between that. with fiberglass parts, they usually lay a clear coat on that's ready to be sanded and prepped for paint. that doesn't require 220 grit, imo. try 440+. you'll have to sand it down again afterwards, though.

wet sanding tip...
a few sheets of wet/dry sand paper + a few drops of dish washing detergent in a bucket. fill it up with clean water and let it soak for about 20 minutes, to soften the edges. when sanding, make sure water is constantly covering the area you're sanding. try a hose or huge sponge. remember to keep dipping the sandpaper in the water to keep it from clogging. once you start having to put a lot of muscle into it and the paper's not cutting as well, change it. you'll cause grooves in the paint otherwise. good luck. sanding blocks are your friend. even pressure.

 

[sonicvybe]

^^ yep that covers everything. (PS: cancel your gym membership cause u will build muscle sanding things

 

[samace_sg]

i thought wet sanding was after you paint and not for prep work

 

[Apollo]

The guy I bought them from said they needed to be wet sanded. :what: I've never done any body detailing work before, so I'm not sure. From what I've read so far I guess I could probably just sand it normally first, right? Might get the job done a little faster. But I also want to avoid sanding too hard and damaging it. Is fiberglass pretty sensitive?

Like I said, I've never sanded parts before, so I guess it's probably best to just play it safe. But I dunno. I'm not doing anything until I get the front lip and the valences, so I have some time still while I save up for those.

 

[G3GirL]

You can just sand it normally. Wet sanding is messy as hell anyway. lol Make sure you use the right kind of primer, though.

i thought wet sanding was after you paint and not for prep work

Not true.

 

[samace_sg]

You can just sand it normally. Wet sanding is messy as hell anyway. lol Make sure you use the right kind of primer, though.



Not true.

Not true?.. thats all .. no explanation..

 

[G3GirL]

Not true?.. thats all .. no explanation..

You wetsand your guide coat when looking for imperfections on the body, after stripping the paint to find any low and high spots. You also wetsand the primer. Both are prep steps prior to shooting paint.