Help! bird sh*t has eaten in2 my cf hood!

[Sir_Dc2]

Hi guys... need a little help.
I'm having problems getting rid of bird crap on my cf hood, I've tried using a lot of different car cleaning detergents but no good... I still see the stains... (fcken birds!)

any suggestions? :(

[m3ntAL_l2]

how long was the bird poo on the hood for?

[Sir_Dc2]

how long was the bird poo on the hood for?

more then 4 months....

[rhk]

lol.. sorry but why didnt you clean it off earlier?

however if you ahvent already:

meguires clay bar (with quick detailer) and then follow that with meguires paint cleaner and see how you go.

[Sir_Dc2]

lol.. sorry but why didnt you clean it off earlier?

however if you ahvent already:

meguires clay bar (with quick detailer) and then follow that with meguires paint cleaner and see how you go.

2 lazy...
I have tried the clay bar still see the stains...

[zorrt]

polish it off. Bird poo does damage paint etc if you leave on for too long. Nothing polishing cant fix tho.

[aaronng]

more then 4 months....
At 4 months, the damage is in the epoxy layer. Either cut off the top layer to minimise the appearance of damage, using a proper cutting compound like the one from 3M with a rotary+foam pad. Hopefully someone on this forum with a rotary can help you.

Clay and paint cleaner won't do anything. Not even scratchX nor Poorboys SSR3 can help fix the damage.

[kwayzivietnamese]

4 months?
Good luck....nothing will get it off...
Even cutting it down will kill the shinyness, itll be dull after he cuts it down...

[aaronng]

4 months?
Good luck....nothing will get it off...
Even cutting it down will kill the shinyness, itll be dull after he cuts it down...
After cutting, you use SSR2.5 followed by SSR1 to restore the shinyness. At least with epoxy, the entire layer is of the same material. With paint, once you cut down the clearcoat, all you get is dull paint. Also, with CF, you have a thick amount of epoxy to work with compared to just a thin clearcoat. The problem is that epoxy is more succeptible to damage from bird droppings and yes, it would be much deeper.

[Sir_Dc2]

At 4 months, the damage is in the epoxy layer. Either cut off the top layer to minimise the appearance of damage, using a proper cutting compound like the one from 3M with a rotary+foam pad. Hopefully someone on this forum with a rotary can help you.

Clay and paint cleaner won't do anything. Not even scratchX nor Poorboys SSR3 can help fix the damage.

Where abouts do I find this cutting compund stuff and the ssr stuff?

[aaronng]

Cutting compound, you have to get it from 3M paint places. Or even bodyshops. I get the SSR-range online from www.waxit.com.au.

[saxman]

After cutting, you use SSR2.5 followed by SSR1 to restore the shinyness. At least with epoxy, the entire layer is of the same material. With paint, once you cut down the clearcoat, all you get is dull paint. Also, with CF, you have a thick amount of epoxy to work with compared to just a thin clearcoat. The problem is that epoxy is more succeptible to damage from bird droppings and yes, it would be much deeper.
very very very very very few carbon hoods for the hondas use any sort of epoxy. Epoxy is what's found in quality carbon hoods... most honda hoods are going to use polyester resin.

[aaronng]

very very very very very few carbon hoods for the hondas use any sort of epoxy. Epoxy is what's found in quality carbon hoods... most honda hoods are going to use polyester resin.
I thought polyester resins were only compatible with fibreglass. Granted that most cheap "CF hoods" are actually made fibreglass and with 1 thin sheet of CF over the top for aesthetic reasons, is it still possible to use polyester resin to coat that CF sheet?

[teaseR]

that means 4 months with a single wash
poor baby

[saxman]

I thought polyester resins were only compatible with fibreglass. Granted that most cheap "CF hoods" are actually made fibreglass and with 1 thin sheet of CF over the top for aesthetic reasons, is it still possible to use polyester resin to coat that CF sheet?
there are no compatibility issues between polyester resin and carbon. It's by far the most common resin used in FRP. VERY VERY few carbon parts for cars are made with anything but polyester resin. Occasionally, you'll see some of the more midrange products using vinyl ester resin, which is certainly an improvement over epoxy, but still less than ideal.

I've made parts with all three resin types... I will NEVER use anything but epoxy again.

[n/a]

4 months?
Good luck....nothing will get it off...
Even cutting it down will kill the shinyness, itll be dull after he cuts it down...

i had bird shit on my car for 1 day and it's ****ed. tried everything, even some heavy duty stuff w/ a rotary. no luck. somehow bird crap gets under the clear layer and ****s around w/ the paint. so maybe you'll have some luck w/ the CF.

[Sir_Dc2]

that means 4 months with a single wash
poor baby

I know, neglected my baby for 2 long...
i get so pissed off when i see the stain of the bird crap...
if i ever find which bird it was... flip out the sling shot!

gonna go shop around see what i can find... ill update you guys to see which product that will! bring back the shine!

cheers for all your help :thumbsup:

[aaronng]

there are no compatibility issues between polyester resin and carbon. It's by far the most common resin used in FRP. VERY VERY few carbon parts for cars are made with anything but polyester resin. Occasionally, you'll see some of the more midrange products using vinyl ester resin, which is certainly an improvement over epoxy, but still less than ideal.

I've made parts with all three resin types... I will NEVER use anything but epoxy again.
Ahh, I see. Thanks for the info.

[Zilli]

why dont you just take it to a panel shop, i might be wrong but they will wetsand it back and spray it with clear

done deal

[Sir_Dc2]

why dont you just take it to a panel shop, i might be wrong but they will wetsand it back and spray it with clear

done deal

But how much will that cost? few hundred?
If there are cheaper alternatives i rather go that route....

[Zilli]

well try wht the fellas are saying, it is a good idea.

But you gotta buy the compound - 20-30 bucks for 3m at least
ssr 2.5 - 30
ssr1 - 30
foam pads - 20 bucks for each grade required, OR borrow from someone
rotary buffer - expensive OR borrow
polish - 40
wax- 40

these are rough estimates

i suppose tid be an idea to try first, but leaving bird shit on your car for 4 months means youll probably end up needing some sort of drastic action

good luck

[saxman]

why dont you just take it to a panel shop, i might be wrong but they will wetsand it back and spray it with clear

done deal
you have to be very careful doing with this carbon fiber. With a cheap hood, the thickness of the gel coat and clear coat can't very very very thin, and if the clear coat is sanded a little too far, you can hit the fiber, which will aesthetically ruin the hood.