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Using a digital scale for measuring Epoxy

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rparigoris

Joined: 24 Nov 2009
Posts: 792

Posted: Sun Dec 21, 2014 5:44 pm Post subject: Using a digital scale for measuring Epoxy

Hi Group



I just want to make a quick comment on using a Digital scale to measure Epoxy:

Don't absolute put trust in them without verification!



I have a few scales, and sometimes they get out of calibration when pouring Epoxy or Hardener slowly. 



I'm not talking about an absolute calibration with a standard (which I do once in a while), I'm talking about the "zero" calibration changing during weighing.



What I do prior to mix, I make sure I have "two" empty mixing cups (with mixing sticks) that weigh exactly the same.



I then zero out a cup with mixing stick. 



Then pour Epoxy, switch cups to make sure still zeroed. If not than rezero and make Epoxy adjustment.



Then add Hardener, switch cups to make sure still zeroed. If not then rezero and make Epoxy adjustment.



Mixing stick is absolutely needed for Redux mix, I find it helpful if you overdid Aeropoxy Epoxy.



My two cents.



Ron Parigoris

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budyerly(at)msn.com
Guest

Posted: Mon Dec 22, 2014 8:19 am Post subject: Using a digital scale for measuring Epoxy

Ron and others,

No doubt about it.  Calibrate your electric scale and check often.



I have an old triple beam (like in chemistry class years ago, yea, I can 

still use a slide rule too) and I calibrate it at least once a month due to 

client drips and required gummy clean ups.  I use the squeeze bottles from 

Aircraft spruce for the resin and hardener (throw away after a year) and we 

still get messy.



I don't have much use for the pumps, but if you are doing a Classic wing or 

Long Eze from scratch in mid summer, they work great for the couple of weeks 

you need one.  Then they need a complete clean out.



My two cents thrown on too.



Regards,

Bud Yerly



--------------------------------------------------

From: "rparigoris" <rparigor(at)suffolk.lib.ny.us>

Sent: Sunday, December 21, 2014 8:44 PM

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

Subject: Using a digital scale for measuring Epoxy



 	  Quote: 	
		   

 <rparigor(at)suffolk.lib.ny.us>



 Hi Group



 I just want to make a quick comment on using a Digital scale to measure 

 Epoxy:

 Don't absolute put trust in them without verification!



 I have a few scales, and sometimes they get out of calibration when 

 pouring Epoxy or Hardener slowly.



 I'm not talking about an absolute calibration with a standard (which I do 

 once in a while), I'm talking about the "zero" calibration changing during 

 weighing.



 What I do prior to mix, I make sure I have "two" empty mixing cups (with 

 mixing sticks) that weigh exactly the same.



 I then zero out a cup with mixing stick.



 Then pour Epoxy, switch cups to make sure still zeroed. If not than rezero 

 and make Epoxy adjustment.



 Then add Hardener, switch cups to make sure still zeroed. If not then 

 rezero and make Epoxy adjustment.



 Mixing stick is absolutely needed for Redux mix, I find it helpful if you 

 overdid Aeropoxy Epoxy.



 My two cents.



 Ron Parigoris





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