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Orange peel on Dupont Imron - fixable?

Posted By: 300by500

Orange peel on Dupont Imron - fixable? - 03/16/13 10:40 PM

I just had one of my Sprinter work vans repainted. I've had a lot of good experiences with fleet vehicles painted with Dupont Imron in the past, so I had the body shop use it instead of base/clear.

THIS TIME, however, the van is covered with BAD orange peel. It has cured for a few weeks, and it is as hard as a rock. I just tried a slow-speed orbital buffer with some Meguiars quick-cut compound on it, but it didn't even touch it.

Posted By: Pacnorthcuda

Re: Orange peel on Dupont Imron - fixable? - 03/16/13 10:46 PM

Quote:

I just had one of my Sprinter work vans repainted. I've had a lot of good experiences with fleet vehicles painted with Dupont Imron in the past, so I had the body shop use it instead of base/clear.

THIS TIME, however, the van is covered with BAD orange peel. It has cured for a few weeks, and it is as hard as a rock. I just tried a slow-speed orbital buffer with some Meguiars quick-cut compound on it, but it didn't even touch it.





You're not going to be able to compound out bad orange peel. You will have to cut it down with sandpaper (block it). Then compound to restore gloss, that will be when the hard Imron will prove to be a challenge.
Posted By: Kern Dog

Re: Orange peel on Dupont Imron - fixable? - 03/16/13 10:49 PM

I didn't know that Imron was still being made!
You'll never take orange peel off by buffing. Have you ever heard of the terms "Cut and buff"? The CUT refers to sanding the paint/clear. The buff obviously means the buffer.
All is not lost. The surface needs to be sanded to where the high spots of the orange peel are sanded away and the surface is even. At that point, You buff with a rubbing compound followed by a polishing pad and compound. There are videos on YouTube. Good luck.
Posted By: 6PakBee

Re: Orange peel on Dupont Imron - fixable? - 03/16/13 11:37 PM

How did somebody get orange peel with Imron? That is one of the most forgiving paints I've ever used.
Posted By: 300by500

Re: Orange peel on Dupont Imron - fixable? - 03/16/13 11:40 PM

Quote:

How did somebody get orange peel with Imron? That is one of the most forgiving paints I've ever used.



I think it was sprayed way too dry. It was a pretty crappy job overall, lots of overspray on plastic parts, even under the hood. Live and learn....
Posted By: 1_WILD_RT

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 12:01 AM

Quote:

How did somebody get orange peel with Imron? That is one of the most forgiving paints I've ever used.



By following EPA mandated guidelines which reduces VOC's by reducing the use of solvents... You know, the stuff that is supposed to allow the paint to flow.... I don't know what the percentages are for Imron as I haven't sprayed it in 25 years but for Centari they changed the mixing ratio from the original 1-1 to the EPA approved 1-8... Gee imagine that, it doesn't lay down at all.. Ignore the new numbers spray it like we did in the 70's & it flows....


FWIW yes you can cut & buff but it's gonna be a ton of work & your likely to cut through...
Posted By: SV_MOPARS

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 12:21 AM

wow, you can still get centari? lucky you.
Posted By: 1_WILD_RT

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 02:20 AM

Not legally....
Posted By: mikeysmopars

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 05:30 AM

You can cut it with 1200 wet paper and ither reclear it or start the cut n pollish process. I spray Imron every day and if you dont have the right gun setup or air pressure you'r gonna struggle. If you go thr reclear rout have your painter do a littl homework on gun setup. If your going to cut n pollish, you have about two weeks window before it gets hard to cut. Ither way will cost the same.
Posted By: 451Mopar

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 06:27 AM

Quote:

Quote:

How did somebody get orange peel with Imron? That is one of the most forgiving paints I've ever used.



By following EPA mandated guidelines which reduces VOC's by reducing the use of solvents... You know, the stuff that is supposed to allow the paint to flow.... I don't know what the percentages are for Imron as I haven't sprayed it in 25 years but for Centari they changed the mixing ratio from the original 1-1 to the EPA approved 1-8... Gee imagine that, it doesn't lay down at all.. Ignore the new numbers spray it like we did in the 70's & it flows....


FWIW yes you can cut & buff but it's gonna be a ton of work & your likely to cut through...



Interesting to know. When I read this my first though was the same as the original quote, but I have not used Imron since the 1980's.
Posted By: 62maxwgn

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 02:15 PM

Quote:

Not legally....



That's because you're in the wrong state on the left coast but you knew that!!
Posted By: 1_WILD_RT

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 05:36 PM

Quote:

Quote:

Not legally....



That's because you're in the wrong state on the left coast but you knew that!!



Yes I do... Still love the weather & the views.... Not to fond of the politics or taxes...
Posted By: pacifica

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 09:47 PM

Quote:

Quote:

Not legally....



That's because you're in the wrong state on the left coast but you knew that!!




Could someone post info or pm me on where to buy centari. It is not

available to me where I live. I see it listed on the Dupont website

under "commercial finishes"?
Posted By: jcc

Re: Orange peel on Dupont Imron - fixable? - 03/17/13 11:33 PM

Anything now more durable then Imron?
Posted By: AdamR

Re: Orange peel on Dupont Imron - fixable? - 03/19/13 02:42 PM

You can buff out orange peel with the right compound and pad combination but you will never do it with a low speed random orbital and its much faster if you wet sand it first. You need a high speed buffer either D/A or Rotary. D/A is way more user friendly if you dont have experience with a rotary.

I would wet sand it with 1200, then 1500, then 2000 but you could get away with just doing 1200 and 1500.
Posted By: mopfried

Re: Orange peel on Dupont Imron - fixable? - 03/20/13 12:16 PM

I thought that Imron would look cloudy if wet sanded and buffed?
Posted By: Challenger 1

Re: Orange peel on Dupont Imron - fixable? - 03/20/13 12:43 PM

Quote:

I thought that Imron would look cloudy if wet sanded and buffed?



My 74 challenger was freshly painted with imron paint in 1984. My friend had it painted just before selling it to me and I remember all the hoopla about it being painted in imron.

It was sanded and buffed and you can see some scratches in the clear and there is a little cloudyness here and there. So I'm thinking it's hard to sand and buff?

I have never tried to buff it and it is very hard paint and has held up well during the 30 years it's been painted.



July 2012, more bonneville salt.
Posted By: BUBBAZ572

Re: Orange peel on Dupont Imron - fixable? - 03/21/13 07:01 PM

WHAT IMRON DID YOU USE?
THERE ARE SEVERAL DIFFERENT ONES.
SOUNDS LIKE INDUSTRIAL IMRON
YOU CAN USE 611P CLEAR TO SMOOTH IT OUT
Posted By: elitecustombody

Re: Orange peel on Dupont Imron - fixable? - 03/22/13 05:04 PM

Good luck buffing that one. I'd suggest checking out compounds made for ceramic clearcoat, it will save you a lot of time
Posted By: Evil Spirit

Re: Orange peel on Dupont Imron - fixable? - 03/23/13 05:24 AM

Quote:

Quote:

I thought that Imron would look cloudy if wet sanded and buffed?



My 74 challenger was freshly painted with imron paint in 1984. My friend had it painted just before selling it to me and I remember all the hoopla about it being painted in imron.

It was sanded and buffed and you can see some scratches in the clear and there is a little cloudyness here and there. So I'm thinking it's hard to sand and buff?

I have never tried to buff it and it is very hard paint and has held up well during the 30 years it's been painted.



July 2012, more bonneville salt.




Imron (like most polyurethanes) surface harden, with the lower layer staying softer to help avoid checking. While the hard top shell sands/polishes well, once you sand through that, you hit the softer lower layer which doesn't polish well and clouds up. I wouldn't expect to be able to sand out deep orange peel without hitting the softer lower layer, resulting in less gloss and a cloudy look.
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