The best thing to do is to get a better price from your recyler on solder paste since by weight it is all virgin solder. 

It should not be be priced as solder dross by weight for the obvious reason. 



If you had the EVS solder recovery system then you could have the flux burned off in that system and return all that virgin solder to the wave, in ingots. These systems are offered with various filter systems and both can be portable so select an area that  best suits your factory. 

John Goulet 

Process Engineer 
----- Original Message ----- 
From: "Graham Collins" <[log in to unmask]> 
To: [log in to unmask] 
Sent: Thursday, April 2, 2009 2:59:57 PM GMT -05:00 US/Canada Eastern 
Subject: Re: [TN] Solder Paste In the Solder Pot 

Hi Kenny 
I tried that - once!  Biggest issue for us was the huge cloud of fumes 
from the flux burning off - totally swamped the venting system on the 
wave machine.   


regards, 
 - Graham 

-----Original Message----- 
From: TechNet [mailto:[log in to unmask]] On Behalf Of Ken Bloomquist 
Sent: Thursday, April 02, 2009 3:43 PM 
To: [log in to unmask] 
Subject: [TN] Solder Paste In the Solder Pot 

I have what I hope is a generic question without getting into too many 
details. 

IF the flux in the solder paste and the flux in the wave solder are 
compatible and they are both 63/37, can unused, expired shelf life, 
solder paste be dumped into the wave solder pot? 

Thanks, 

KennyB 

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