wet sanding and reclearing.

[corolla619]

so i have a spare carbon fiber hood and i am going to wet sand it and want to reclear it, all myself. seen it done before but have a few questions.

so i will wet sand with either 1500 or 2000 grit paper.

once i finish wet sanding, do i need to polish out the hood before reclearing?

if so, once i'm done polishing, do i need to do a ipa wipedown before spraying my clear?

just don't see how after wet sanding and going straight to the clear coat will make it to where you don't see the sand marks/scuffs?

thanks in advance.

[Rsurfer]

so i have a spare carbon fiber hood and i am going to wet sand it and want to reclear it, all myself. seen it done before but have a few questions.

so i will wet sand with either 1500 or 2000 grit paper.

once i finish wet sanding, do i need to polish out the hood before reclearing?

if so, once i'm done polishing, do i need to do a ipa wipedown before spraying my clear?

just don't see how after wet sanding and going straight to the clear coat will make it to where you don't see the sand marks/scuffs?

thanks in advance.

Start with 1500 and finish with 2000 or better yet 3000. The finer the grit the less polishing you will need to do. Yes do a IPA wipe down. After clear coating let it cure for a day and polish and then wax. Are you using a paint sprayer or a rattle can?

[Jumpingbean]

I've read a lot of forum posts about repainting cars as I just had it done to my Accord. The body guys recommend going to between 400 and 600 grit to get proper adhesion. I was the one to actually wet sand my car and I did it with 600. I'm not sure if it's the same with Carbon Fibre but that seems way too fine for proper adhesion....

[corolla619]

rsurfer,
so go 1500,2000, then 3000.

okay, but once done wetsanding, do i need to polish the hood before reclearing?

that's the part i don't get? i mean if i didn't polish it out before reclearing, wouldn't the sanding marks show up after reclearing?

rattle can. seem phenomenal results. figured i'd do it since i have a spare carbon fiber hood with a couple tiny cracks. just want to reclear for the sealing factor.

[Rsurfer]

rsurfer,
so go 1500,2000, then 3000.

okay, but once done wetsanding, do i need to polish the hood before reclearing?

that's the part i don't get? i mean if i didn't polish it out before reclearing, wouldn't the sanding marks show up after reclearing?

rattle can. seem phenomenal results. figured i'd do it since i have a spare carbon fiber hood with a couple tiny cracks. just want to reclear for the sealing factor.

Yes, the sanding marks will show up if you don't polish it out. All you are doing is shooting clear over clear.

[Jumpingbean]

If you polish it out before spraying the new clear will flake right off. I'm telling you 3000 is way too fine as is. Paint needs a rough surface to adhere to. The layer of paint will fill in all the rough surface and become some what level on the new surface.

Please if you don't believe me, this is the first google result...

What grit of sand paper should i use on my car? - Yahoo! Answers

And if you don't wait at least a few weeks before you wax it (that's wax it, not polish it) you won't give the paint enough time to cure and it'll bubble. The wax/sealant will seal the paint and won't allow the solvents to cure.

[corolla619]

Yes, the sanding marks will show up if you don't polish it out. All you are doing is shooting clear over clear.

okay, so steps taken are:

1) wet sand 1500,2000,3000
2) polishout the sanding marks before reclearing
3) ipa wipedown
4) reclear
5) wait a day or two, then polish and wax/seal

thanks ron.

[Jumpingbean]

Here's a thread I found for you that talks exactly about what you're trying to do.

Re-clear carbon fiber hood? - beyond.ca car forums community for automotive enthusiasts

I wish you luck. I definitely want to see the pics a week after you wax it

[Rsurfer]

If you polish it out before spraying the new clear will flake right off. I'm telling you 3000 is way too fine as is. Paint needs a rough surface to adhere to. The layer of paint will fill in all the rough surface and become some what level on the new surface.

Please if you don't believe me, this is the first google result...

What grit of sand paper should i use on my car? - Yahoo! Answers

And if you don't wait at least a few weeks before you wax it (that's wax it, not polish it) you won't give the paint enough time to cure and it'll bubble. The wax/sealant will seal the paint and won't allow the solvents to cure.

He is not repainting with a base coat just re-shooting a coat of clear.

[Jumpingbean]

Ya, I get that. Have a look at the second link I posted as well....