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Alodine Question

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Sun Sep 09, 2007 11:59 am Post subject: Alodine Question

I’ve been using Dorado Kote 1 for some time now with good results.   All the parts that I put into the dip tank this afternoon came out looking great.   In the past, I’ve used a foam brush to coat the solution on the inside of the skins and other parts too large to fit into the tank.  I not had any problems doing this before.  However, today on several of the skins, I had some blue-green splotches appear instead of the normal bronze color.  

   

Any idea what may have caused this?   Should this cause a concern?  Should I attempt to remove this or is it ok to prime with AKZO?  

   

I’ve also sent an email off to Eldorado already, so hopefully I’ll hear back from them tomorrow.  

      [quote][b]

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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

drfred(at)suddenlinkmail.
Guest

Posted: Sun Sep 09, 2007 3:15 pm Post subject: Alodine Question

Bob;



I have used the same solution as you have and have also had occasional 

staining of areas. I think it is the chromate. It seems to form more in 

the older solutions. I keep the mixed dorado kote in a clean plastic 

bucket. As it gets older a green ring will start to form around the top 

of the bucket. Concurrently, the solution takes longer to react with the 

surface. I can usually rinse most of it off. I have used Sherwin 

Williams primer over the top of those stains and have not seen any 

flaking or change in the coat.



I would be interested in hearing their reply.



Fred Williams

40515



Bob Leffler wrote:

 	  Quote: 	
		  

 I’ve been using Dorado Kote 1 for some time now with good results. All 

 the parts that I put into the dip tank this afternoon came out looking 

 great. In the past, I’ve used a foam brush to coat the solution on the 

 inside of the skins and other parts too large to fit into the tank. I 

 not had any problems doing this before. However, today on several of 

 the skins, I had some blue-green splotches appear instead of the 

 normal bronze color.



 Any idea what may have caused this? Should this cause a concern? 

 Should I attempt to remove this or is it ok to prime with AKZO?



 I’ve also sent an email off to Eldorado already, so hopefully I’ll 

 hear back from them tomorrow.



 *

 *

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Sun Sep 09, 2007 4:08 pm Post subject: Alodine Question

I used about 5 gallons in my dip tank, which is the shipping crate that the

spars for the empennage came in.   The first time I used it was back in

March, then in May, and finally today.  I've added about a gallon of new

each time.



I haven't seen rings in the plastic containers I store the alodine in and I

keep it in a dark corner of the basement.  I didn't get any discoloration in

the pieces that were fully dipped, just the larger pieces that were painted

with a foam brush.



I'll pass along Eldorado's comments when/if I get them.



Bob

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Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

DLIUDVINAITIS(at)aol.com
Guest

Posted: Sun Sep 09, 2007 7:16 pm Post subject: Alodine Question

BOB

 I ALSO SEEN THIS BLUE STAINING WHEN USING ALODINE, IT DID TAKE LONGER TO  REACT TO ALUMINUM. MUST BE CONTAMINATED WITH METAL PREP CLEANING SOLUTION. I  DUMPED OLD SOLUTION WENT WITH NEW, NO PROBLEMS NOW, I AM APPLYING IT  FULL STRENGHT WITH A SPONGE. IT REACTS IN 3 MINS TURNING LIGHT GOLD IN  COLOR, NO NEED TO BE ANY DARKER JUST GOLD. 

  

 DAVE LUDD  #40466

 FUSELAGE



See what's n="_blank">Make AOL Your Homepage.

  [quote][b]

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Mon Sep 10, 2007 2:39 am Post subject: Alodine Question

I suspect some sort of contamination, but not with the alodine solution.  During the same session, I treated fifty plus components with no issues what so ever.  It was only on the four elevator skins, which couldn’t fit into the dip tank.  My thoughts that the contamination may have come from the foam brush, but it came from the same package of brushes that I used before without incident.  

   

Hopefully, I can identify the true cause of this so it can be prevented in the future.  Also, these blue-green splotches cleared up after completing drying.  They now appear as if those areas were never treated.  

       

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of DLIUDVINAITIS(at)aol.com

 Sent: Sunday, September 09, 2007 11:16 PM

 To: rv10-list(at)matronics.com

 Subject: Re: Alodine Question  

  

  

     

BOB  

    

I ALSO SEEN THIS BLUE STAINING WHEN USING ALODINE, IT DID TAKE LONGER TO REACT TO ALUMINUM. MUST BE CONTAMINATED WITH METAL PREP CLEANING SOLUTION. I DUMPED OLD SOLUTION WENT WITH NEW, NO PROBLEMS NOW, I AM APPLYING IT FULL STRENGHT WITH A SPONGE. IT REACTS IN 3 MINS TURNING LIGHT GOLD IN COLOR, NO NEED TO BE ANY DARKER JUST GOLD.   

    

   

    

DAVE LUDD  #40466  

    

FUSELAGE  

  



 

         

  

See what's n="_blank">Make AOL Your Homepage.  

   	  Quote: 	
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      [quote][b]

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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

rvbuilder(at)sausen.net
Guest

Posted: Mon Sep 10, 2007 3:12 am Post subject: Alodine Question

Bob,



  I used mine for almost 2 years without ever mixing in new and I occasionally saw what you are talking about.  After about 6 months or so the Alodine mix didn't seem to be working as well and started to show some of what you are seeing.  Turns out the stuff just needed to be mixed up and kept agitated.  Because I always kept mine in a 30 gal trash can I just threw in a fairly large aquarium power head with a long hose attached to it.  I left it on 24/7 and when I need to fill a dip tank it also doubled as a way to pump it in to the tank via the hose.  Worked fine from then on.



Michael



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rvbuilder(at)sausen.net
Guest

Posted: Mon Sep 10, 2007 3:15 am Post subject: Alodine Question

Hmm, now that does sound different than what I have seen.   Try cleaning those areas with some soapy water and run through the process again to see if that makes some difference.  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bob Leffler

 Sent: Monday, September 10, 2007 5:39 AM

 To: rv10-list(at)matronics.com

 Subject: RE: Alodine Question  

I suspect some sort of contamination, but not with the alodine solution.  During the same session, I treated fifty plus components with no issues what so ever.  It was only on the four elevator skins, which couldn’t fit into the dip tank.  My thoughts that the contamination may have come from the foam brush, but it came from the same package of brushes that I used before without incident.  

Hopefully, I can identify the true cause of this so it can be prevented in the future.  Also, these blue-green splotches cleared up after completing drying.  They now appear as if those areas were never treated.  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of DLIUDVINAITIS(at)aol.com

 Sent: Sunday, September 09, 2007 11:16 PM

 To: rv10-list(at)matronics.com

 Subject: Re: Alodine Question  

BOB  

I ALSO SEEN THIS BLUE STAINING WHEN USING ALODINE, IT DID TAKE LONGER TO REACT TO ALUMINUM. MUST BE CONTAMINATED WITH METAL PREP CLEANING SOLUTION. I DUMPED OLD SOLUTION WENT WITH NEW, NO PROBLEMS NOW, I AM APPLYING IT FULL STRENGHT WITH A SPONGE. IT REACTS IN 3 MINS TURNING LIGHT GOLD IN COLOR, NO NEED TO BE ANY DARKER JUST GOLD.   

DAVE LUDD  #40466  

FUSELAGE  

See what's n="_blank">Make AOL Your Homepage.  

   	  Quote: 	
		    http://www.matronics.com/Navigator?RV10-Listhttp://forums.matronics.com 	

 __________ NOD32 2518 (20070910) Information __________   	  Quote: 	

0 	  Quote: 	

1 	  Quote: 	

2 	  Quote: 	

3 	  Quote: 	

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      [quote][b]

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rleffler

Joined: 05 Nov 2006
Posts: 680

Posted: Mon Sep 10, 2007 5:43 am Post subject: Alodine Question

Michael,



This may be a contributing factor.   I store my alodine in gallon jugs and pour it into the plastic lined shipping crate when I use it.  The only agitation that it would have received would have been from being dumped from one container to another.  Probably not very good.   



The other alternative is tht I did mix a new gallon that was added just a few minutes beforehand.   Perhaps I didn't get it throughly mixed up.  I guess that's the downside of going with the powder version and mixing it yourself.



I'm going to have to look for another type of container if I want to continue to dip parts.   Other than the longerons, I don't think may parts in the tail cone will fit.



Thanks for your comments.....



bob



[quote] 

 From: "RV Builder (Michael Sausen)" <rvbuilder(at)sausen.net>

 Date: 2007/09/10 Mon AM 06:11:25 EST

 To: "rv10-list(at)matronics.com" <rv10-list(at)matronics.com>

 Subject: RE: Alodine Question

 

 

 

 Bob,

 

   I used mine for almost 2 years without ever mixing in new and I occasionally saw what you are talking about.  After about 6 months or so the Alodine mix didn't seem to be working as well and started to show some of what you are seeing.  Turns out the stuff just needed to be mixed up and kept agitated.  Because I always kept mine in a 30 gal trash can I just threw in a fairly large aquarium power head with a long hose attached to it.  I left it on 24/7 and when I need to fill a dip tank it also doubled as a way to pump it in to the tank via the hose.  Worked fine from then on.

 

 Michael

 

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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler

rvbuilder(at)sausen.net
Guest

Posted: Mon Sep 10, 2007 6:13 am Post subject: Alodine Question

I went with the powder from ElDorado also.  What I ended up doing was getting a heavy duty 32 gallon Rubbermaid trash bin and put the castors on it so I can roll it around.  I mixed up about 25 gallons and then I just keep it in there where it's safe from light and evaporation.  I did notice before I was keeping it agitated there was a fair amount of precipitation of stuff out of the solution on the bottom of the bin when I pumped it into a dip tank.



Michael



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