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Cortec VCI-373

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special4

Joined: 27 Sep 2006
Posts: 28

Posted: Thu Apr 12, 2007 2:30 pm Post subject: Cortec VCI-373

I am trying to find the information up to what temperature and/or humidity Cortec VCI-373 can be applied to aluminum. I am using Zinc Chromate but I have problems with high temperature and humidity here in SW Florida as Zinc Chromate can only be used up to 80F and/or 60% humidity. 

Thanks

Peter Sonders

Zodiax 601XL working on the elevator

_________________
Sportsflyer

JohnDRead(at)aol.com
Guest

Posted: Thu Apr 12, 2007 7:34 pm Post subject: Cortec VCI-373

Hi Pete:

             I  dilute Cortec 373 50/50 with denatured alcohol. The alcohol flashes off very  quickly, the temp in my shop is 70 and the humidity has been as high as 70%. I  have attached info from Cortec, there is no temp or humidity  data.

  

 Regards, John Read

  

 do not archive



See what's free at AOL.com.

special4

Joined: 27 Sep 2006
Posts: 28

Posted: Fri Apr 13, 2007 4:12 am Post subject: Re: Cortec VCI-373

Thanks John,



I did check the "Cortec" website, but there is no information on the product data sheet regarding temps/humidity. I have sent an email but no answer so far.



Peter Sonders

_________________
Sportsflyer

JohnDRead(at)aol.com
Guest

Posted: Fri Apr 13, 2007 10:12 am Post subject: Cortec VCI-373

Hello List:

                 Anyone  have experience of using Cortec as a primer on the outside of an aircraft? What  paint would be compatible?

  

 John

 CH701 with Slats

 in Colorado



See what's free at AOL.com. 

  [quote][b]

Michael Valentine

Joined: 09 Jan 2006
Posts: 108

Posted: Fri Apr 13, 2007 10:57 am Post subject: Cortec VCI-373

As this discussion continues, I must interject how much I disliked the Cortec.  I found it to be very easy to apply, but crappy thereafter.  It was sticky and held aluminum chips/shavings in tight places.  It liked to peel, like Elmer's glue - especially when two pieces rubbed together (like when you move the wing skin around on the ribs).  It also sucks to mark on with a sharpie afterwards. 



I will admit that when I went back to mess with one part about a year later, the stuff had dried much better and held to the part better.  But, that was literally a year later.



I am now using the Dupli-Color self-etching primer that you get at auto stores.  I have to go outside or in the garage to spray (with a regular mask), but it is so much easier and nicer! 



Michael in NH



do not archive

On 4/13/07, JohnDRead(at)aol.com (JohnDRead(at)aol.com) < JohnDRead(at)aol.com (JohnDRead(at)aol.com)> wrote:[quote]     Hello List:

                 Anyone  have experience of using Cortec as a primer on the outside of an aircraft? What  paint would be compatible?

  

 John

 CH701 with Slats

 in Colorado



[b]

bill_dom(at)yahoo.com
Guest

Posted: Fri Apr 13, 2007 1:12 pm Post subject: Cortec VCI-373

I’m using Cortec also and I’ve experienced  the problems stated by Michael bellow however, there are ways to mitigate this.  I typically roughen the surface with scotchbrite and clean it well before  applying, then I let it dry for 24 hours and this avoid the problem of peeling  out.

  

  

  

  To remove chips/shavings of metal  stick in the aluminum I use a cloth slightly damped with denatured alcohol for  open spaces and a brush for the tight places, this un-stick the chips and after  that I vacuum them out of the assembly.

  

  

  Even with this inconveniences, I  thing Cortec is still easier to apply than any other method. What I don’t know is  if it provide equal protection in the long run .

       

              William Dominguez

  Zodiac 601XL Plans

  Miami, Florida

        



Michael Valentine <mgvalentine(at)gmail.com> wrote:[quote]As  this discussion continues, I must interject how much I disliked the  Cortec.  I found it to be very easy to apply, but crappy  thereafter.  It was sticky and held aluminum chips/shavings in  tight places.  It liked to peel, like Elmer's glue - especially  when two pieces rubbed together (like when you move the wing skin  around on the ribs).  It also sucks to mark on with a sharpie  afterwards.  



I will admit that when I went back to mess with one part about  a year later, the stuff had dried much better and held to the part   better.  But, that was literally a year later.



I am now  using the Dupli-Color self-etching primer that you get at auto  stores.  I have to go outside or in the garage to spray (with a  regular mask), but it is so much easier and nicer!  



Michael in NH



do not archive

On 4/13/07, JohnDRead(at)aol.com (JohnDRead(at)aol.com) <  JohnDRead(at)aol.com (JohnDRead(at)aol.com)> wrote:[quote]          Hello List:

                  Anyone   have experience of using Cortec as a primer on the outside of an aircraft? [quote][b]

JohnDRead(at)aol.com
Guest

Posted: Fri Apr 13, 2007 1:26 pm Post subject: Cortec VCI-373

How much are you thinning the Cortec? I use 50/50 Cortec/Denatured  alcohol.

  

 John



See what's free at AOL.com. 

  [quote][b]

cscsail(at)gmavt.net
Guest

Posted: Fri Apr 13, 2007 2:01 pm Post subject: Cortec VCI-373

John,

     I asked Cortec a similar question because I wanted to  paint over some of it inside the cabin area. This was their response:

 Gordon

  

 You can apply any acrylic coating as a top coat to VpCI 373.  This  would 

include most products that you find at local hardware stores.   You can also 

apply virtually and urethane coating.  If there is a  specific coating that 

you would like to apply, please let me know and I can  advise about 

compatibility.



 Best regards,



 Cliff  Cracauer



Technical Sales Manager

Integrated Solutions



Cortec  Corporation



 [quote]   ---

Jaybannist(at)cs.com
Guest

Posted: Fri Apr 13, 2007 4:33 pm Post subject: Cortec VCI-373

Changing the subject to the metal chips, does anyone EVER get rid of all the chips?  I'm past the kit assembly and I still have to vacuum chips daily.



Jay in Dallas

do not archive

William Dominguez <bill_dom(at)yahoo.com> wrote:



 	  Quote: 	
		      I’m using Cortec also and I’ve experienced  the problems stated by Michael bellow however, there are ways to mitigate this.  I typically roughen the surface with scotchbrite and clean it well before  applying, then I let it dry for 24 hours and this avoid the problem of peeling  out.



  To remove chips/shavings of metal  stick in the aluminum I use a cloth slightly damped with denatured alcohol for  open spaces and a brush for the tight places, this un-stick the chips and after  that I vacuum them out of the assembly.

  Even with this inconveniences, I  thing Cortec is still easier to apply than any other method. What I don’t know is  if it provide equal protection in the long run .



              William Dominguez

  Zodiac 601XL Plans

  Miami, Florida

Michael Valentine <mgvalentine(at)gmail.com> wrote:As  this discussion continues, I must interject how much I disliked the  Cortec.  I found it to be very easy to apply, but crappy  thereafter.  It was sticky and held aluminum chips/shavings in  tight places.  It liked to peel, like Elmer's glue - especially  when two pieces rubbed together (like when you move the wing skin  around on the ribs).  It also sucks to mark on with a sharpie  afterwards.



I will admit that when I went back to mess with one part about  a year later, the stuff had dried much better and held to the part  better.  But, that was literally a year later.



I am now  using the Dupli-Color self-etching primer that you get at auto  stores.  I have to go outside or in the garage to spray (with a  regular mask), but it is so much easier and nicer!



Michael in NH



do not archive

On 4/13/07, JohnDRead(at)aol.com <  JohnDRead(at)aol.com> wrote:          Hello List:

                  Anyone   have experience of using Cortec as a primer on the outside of an aircraft? What   paint would be compatible?



  John

  CH701 with Slats

  in Colorado

JohnDRead(at)aol.com
Guest

Posted: Fri Apr 13, 2007 6:18 pm Post subject: Cortec VCI-373

Thanks for the reply Gordon.

  

 John



See what's free at AOL.com. 

  [quote][b]

bill_dom(at)yahoo.com
Guest

Posted: Fri Apr 13, 2007 6:37 pm Post subject: Cortec VCI-373

I use 33/66 of Cortec/Denatured.

  

  William Dominguez

  Zodiac 601XL Plans

  Miami, Florida



JohnDRead(at)aol.com wrote:[quote]          How much are you thinning the Cortec? I use 50/50 Cortec/Denatured   alcohol.

   

  John



See what's free at

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