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-   -   DIY: Better Looking OEM Rear Diffuser (https://www.rx8club.com/series-i-do-yourself-forum-73/diy-better-looking-oem-rear-diffuser-132286/)

PBlue 12-06-2007 07:04 AM

What kind o paint? what kind o clearcoat?

Spin9k 12-06-2007 07:16 AM

I used (from the local craft store) 'Plaid' brand 'Paint Plastic Primer' (clear) and 'Paint Plastic Silver', followed by 'Paint Plastic Sealer' (clear). Application took about 10 min per coat using a 1" foam brush. Not really hard at all.

Total cost $2 + $2 + $2 + $.50 (brush).

The primer is liquid and dries invisible, so just brush it on. The (aluminum) paint is a gel like substance. It doesn't go anywhere, esp. when on the brush I used (see pic). The clear coat is clear too.

The plastic grillwork is raised off the background plastic so the wide brush, if you're just reasonably careful, rides atop the ridges and doesn't get in the valleys. I used the little brush for a couple places near the crest cause the wide brush was too tight there. Also as the paint is water based, I used the little brush wet to clean a couple spots by swirling it on the plastic and dissolving the paint. FYI first coat is not quite complete coverage, the brush leaves lines like a little rake sort of. 2nd coat can cover these nearly completely depending on how carefull you are.

It drys in 30 minutes, and 'cures' in 48-72 hrs/ coat. It is billed as water resistant after curing, but not water submersible. The primer helps adhesion on the plastic, the clear coat helps duribility and adds more water resistance. 4 yrs later, stil perfect!

PBlue 12-10-2007 08:13 AM

thanks alot for the info. I may just try this when i get a spare moment from car things.

lepichichi 12-10-2007 08:15 AM

yoooo, that is one ugly thumb.. LOL....

Spinning Sushi 12-10-2007 02:41 PM

My thumb is pretty!
This is ugly:
http://tbn0.google.com/images?q=tbn:...umbDay57_2.jpg

romycha1 12-12-2007 02:57 PM


Originally Posted by Easy_E1 (Post 2168901)
Now all you have to do is take an X-ACTO knife and cut all the little diamonds out of it and you'll have a true screen mesh.

I was actually thinking of cutting that out and putting in real mesh...

Wind Dance 12-13-2007 03:41 AM

That would be interesting.. how are you planning to hold the mesh in place??
DO IT!! Post pics

Cody Red 12-13-2007 03:45 AM


Originally Posted by Easy_E1 (Post 2168901)
Now all you have to do is take an X-ACTO knife and cut all the little diamonds out of it and you'll have a true screen mesh.

this is what i wanna do with my "diffuser"

romycha1 12-13-2007 05:44 PM


Originally Posted by Wind Dance (Post 2187620)
That would be interesting.. how are you planning to hold the mesh in place??
DO IT!! Post pics

Well I've never looked behind the bumper, so I don't really know what it looks like. But there are several different ways you can hold the mesh up.
Back in the day on my Hondas.. when I would put a body kit on or something I'd first cut up a few paperclips so they are just straight pins. Then on the back side of the bumper I'd put a few dabs of epoxy or even some bondo and stick the paperclips in them. After everything is dry, just cut the mesh to desired size, slip it over the paperclips and bend them down so the mesh doesn't slide off.

And there is no reason why I use paperclips, I use them cause there easy to bend and I work in an office.

Spinning Sushi 12-14-2007 05:56 PM


Originally Posted by romycha1 (Post 2188777)
Well I've never looked behind the bumper, so I don't really know what it looks like. But there are several different ways you can hold the mesh up.
Back in the day on my Hondas.. when I would put a body kit on or something I'd first cut up a few paperclips so they are just straight pins. Then on the back side of the bumper I'd put a few dabs of epoxy or even some bondo and stick the paperclips in them. After everything is dry, just cut the mesh to desired size, slip it over the paperclips and bend them down so the mesh doesn't slide off.

And there is no reason why I use paperclips, I use them cause there easy to bend and I work in an office.

I was actually planning on doing this too. I just don't know if I'll like seeing the heat shield that covers the exhaust after I cut it out.

romycha1 12-14-2007 11:25 PM

Wow.. I didn't even think of that... but then again, I'll be making myself an exhaust after Christmas..


...Just paint it black..

9krpmrx8 12-21-2007 11:26 PM

This is the dumbest shit I have ever seen.

XDEEDUBBX 12-22-2007 12:16 AM

hahah

kersh4w 12-22-2007 12:24 AM

if you already did the back, what about doing this to the front? that way it matches and you have a more cohesive design.

Spinning Sushi 12-22-2007 05:04 AM


Originally Posted by 9krpmrx8 (Post 2204915)
This is the dumbest shit I have ever seen.

You're funny. Faggot.

kersh4w 12-22-2007 03:10 PM

so are you gonna do the front?

huh huh?

i wanna see it.

VelocityRed-8 07-05-2008 08:57 PM

I think I should try this too. Someone want to try the front and see what it looks like?:uhh:

Spinning Sushi 07-05-2008 09:02 PM

Someone really should instead of me since I have the Autobahn front bumper.

foo77 10-15-2008 09:35 AM

2 Attachment(s)
finally got my time :)

altspace 10-18-2008 04:32 PM

ugh.

yushinrt 10-18-2008 08:02 PM

this is what i did, sorry i should of cleaned it but i didn't sorry

http://i163.photobucket.com/albums/t...9102008298.jpg

http://i163.photobucket.com/albums/t...9102008297.jpg

http://i163.photobucket.com/albums/t...9102008296.jpg

http://i163.photobucket.com/albums/t...9102008295.jpg

keak_da_sbsneak 10-22-2008 12:56 PM

Anyone just try some blue tape then a can of silver car spray paint from like kragen, bout 20 bucks but probably a better finishing result. If you're into it you can even do other colors to accent your paint job, gold, blue, red w.e

yushinrt 10-22-2008 06:10 PM

i just brought me a rx-7 rear diffuser i hope to fit up on my car by end of the month if it works i will post a pic if it doesn't work i will keep quite lol

S1lveRx8 10-22-2008 06:17 PM


Originally Posted by yushinrt (Post 2694773)
i just brought me a rx-7 rear diffuser i hope to fit up on my car by end of the month if it works i will post a pic if it doesn't work i will keep quite lol

Interesting. I will stay tuned to the result. Hopefully it works out...

risky business 10-22-2008 06:17 PM


Originally Posted by altspace (Post 2169737)
Clean those exhaust tips!

+1, rubbing compound FTW!


Not gonna lie.... when i saw the first picture i thought "oh god, why did he sharpie his 8"... but it doesn't look half bad, think i'll use real paint like spin did tho.


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