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AKZO primer question

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Hopperdhh(at)aol.com
Guest

Posted: Mon Jul 10, 2006 5:15 am Post subject: AKZO primer question

Listers,

  

 No, I don't want to start a war.

  

 I have 2 one gallon cans (base and curing solution) of Dexter (AKZO) 2 part  epoxy primer that are now 5 years old.  The label  says the maximum  shelf life is 2 years -- mil spec, etc.  They have been kept at room  temperature the whole time (air conditioned in summer, greater than 60 degrees  in winter).  The contents look good after stirring the base for about 5  minutes.

  

 I mixed some up and waited 1/2 hour and sprayed it on a piece of  scotch-bright scuffed aluminum.  After curing it seems to be very  hard and works like new as far as I can tell.

  

 Here is the question:  what would be the failure mode of using this  old primer?  I hate to throw away $130 plus shipping if it is actually OK  to use.

  

 Dan Hopper

 RV-7A

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klwerner(at)comcast.net
Guest

Posted: Mon Jul 10, 2006 6:37 am Post subject: AKZO primer question

Hi Dan,

 Don't have an answer in regards to the failure mode for  you, but if it checks out O.K. on a test piece then I would definitely use it up...

 do not archive

 [quote]   ---

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deruiteraircraftservices(
Guest

Posted: Mon Jul 10, 2006 7:24 am Post subject: AKZO primer question

Hi,

  

 Subject to certain conditions the aircraft factories re-life paint related  materials if they have their own labs.

  

 Do a tape test on your test piece. Use a good quality masking tape(3M)  press it onto the piece with a spreader and then pull off without doubling  over.(yank it off) if the primer stays on the adhesion is still reasonable  good.

 The problem of using expired parimer/paint is usually adhesion. Some two  packs sometimes don't harden out.

 [quote]   ---

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seiders(at)bellsouth.net
Guest

Posted: Mon Jul 10, 2006 9:08 am Post subject: AKZO primer question

Dan, I spoke with a friend who operates an auto body and paint shop (he painted my RV6A doing a beautiful job) and he says primer should be ok but check hardener and if yellowed replace it.

 Dick



 At 09:12 AM 7/10/2006, you wrote:

  	  Quote: 	
		   Listers,

  

 No, I don't want to start a war.

  

 I have 2 one gallon cans (base and curing solution) of Dexter (AKZO) 2 part epoxy primer that are now 5 years old.  The label  says the maximum shelf life is 2 years -- mil spec, etc.  They have been kept at room temperature the whole time (air conditioned in summer, greater than 60 degrees in winter).  The contents look good after stirring the base for about 5 minutes.

  

 I mixed some up and waited 1/2 hour and sprayed it on a piece of scotch-bright scuffed aluminum.  After curing it seems to be very hard and works like new as far as I can tell.

  

 Here is the question:  what would be the failure mode of using this old primer?  I hate to throw away $130 plus shipping if it is actually OK to use.

  

 Dan Hopper

 RV-7A

- The Matronics RV-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Hopperdhh(at)aol.com
Guest

Posted: Mon Jul 10, 2006 5:29 pm Post subject: AKZO primer question

 

 Thanks everyone for the replies.

  

 Richard, it is slightly amber colored -- kind of like the color of auto  gas.  Does anyone know if it had any color to start with.  I don't  remember.  The primer sprays and cures OK.  It is as hard as nails  just like it was 4 or 5 years ago.  Its amazing stuff for those of you who  haven't used it.

  

 How would I replace the hardener?  Is it cheaper than the base?   I bought them both from Aircraft Spruce together.

  

 Dan Hopper

 RV-7A

  

  

 In a message dated 7/10/2006 1:12:44 P.M. Eastern Daylight Time,  seiders(at)bellsouth.net writes:

 [quote]-->    RV-List message posted by: Richard Seiders Dan, I spoke    with a friend who operates an auto body and paint shop (he painted my RV6A    doing a beautiful job) and he says primer should be ok but check hardener and    if yellowed replace it.

Dick



At 09:12 AM 7/10/2006, you wrote:

    	  Quote: 	
		  Listers,

 

No, I don't want to start a war.

 

I      have 2 one gallon cans (base and curing solution) of Dexter (AKZO) 2 part      epoxy primer that are now 5 years old.  The label  says the      maximum shelf life is 2 years -- mil spec, etc.  They have been kept at      room temperature the whole time (air conditioned in summer, greater than 60      degrees in winter).  The contents look good after stirring the base for      about 5 minutes.

 

I mixed some up and waited 1/2 hour and      sprayed it on a piece of scotch-bright scuffed aluminum.  After curing      it seems to be very hard and works like new as far as I can      tell.

 

Here is the question:  what would be the failure      mode of using this old primer?  I hate to throw away $130 plus shipping      if it is actually OK to use.

 

Dan  ====================================================  vigator  =  and  ist  ==================================================Matt  =====================================

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Tim(at)MyRV10.com
Guest

Posted: Mon Jul 10, 2006 6:58 pm Post subject: AKZO primer question

That's the right color.   If it were me, I'd just use it.

If your quick test shows it's tough, then I'm betting you'll

be just fine, and richer for not spending more cash.



Tim Olson - RV-10 N104CD - Flying

do not archive

Hopperdhh(at)aol.com wrote:

 	  Quote: 	
		    

 Thanks everyone for the replies.

  

 Richard, it is slightly amber colored -- kind of like the color of auto 

 gas.  Does anyone know if it had any color to start with.  I don't 

 remember.  The primer sprays and cures OK.  It is as hard as nails just 

 like it was 4 or 5 years ago.  Its amazing stuff for those of you who 

 haven't used it.

  

 How would I replace the hardener?  Is it cheaper than the base?  I 

 bought them both from Aircraft Spruce together.

  

 Dan Hopper

 RV-7A

  

  

 In a message dated 7/10/2006 1:12:44 P.M. Eastern Daylight Time, 

 seiders(at)bellsouth.net writes:

 

     

     friend who operates an auto body and paint shop (he painted my RV6A

     doing a beautiful job) and he says primer should be ok but check

     hardener and if yellowed replace it.

     Dick

 

     At 09:12 AM 7/10/2006, you wrote:

>     Listers,

>      

>     No, I don't want to start a war.

>      

>     I have 2 one gallon cans (base and curing solution) of Dexter

>     (AKZO) 2 part epoxy primer that are now 5 years old.  The label 

>     says the maximum shelf life is 2 years -- mil spec, etc.  They

>     have been kept at room temperature the whole time (air conditioned

>     in summer, greater than 60 degrees in winter).  The contents look

>     good after stirring the base for about 5 minutes.

>      

>     I mixed some up and waited 1/2 hour and sprayed it on a piece of

>     scotch-bright scuffed aluminum.  After curing it seems to be very

>     hard and works like new as far as I can tell.

>      

>     Here is the question:  what would be the failure mode of using

>     this old primer?  I hate to throw away $130 plus shipping if it is

>     actually OK to use.

>      

>     Dan ==================================================== vigator =

>     and ist ==================================================Matt

>     =====================================

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