besides the name  mentioned, I  like AiTechnology. a bit pricy but  
great product for both conductive and non-conductive... (money well  
spend for consistency and quality... IMHO... you might have to fight  
with your penny pinch program MGR).
On Feb 26, 2018, at 11:21 AM, Stadem, Richard D wrote:

> I can also speak for Zymet; I am currently using both its thermally  
> conductive and electrically conductive epoxies at three different  
> companies. Zymet makes an excellent product; it is extremely  
> consistent from lot to lot. For automated dispensing, you need to  
> understand the pot life, just as you would for any other dispensed  
> epoxy, especially for SMT chipbonders. For extremely precise  
> dispensing, the pot life may only be 10 hours before the changes in  
> viscosity cause variations in the dispensed amount, but you can use  
> up the rest of the tube after 10 hours and before its real pot life  
> of 48 hours expires by dispensing manually, such as for touchup, etc.
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Wayne Showers
> Sent: Monday, February 26, 2018 9:52 AM
> To: [log in to unmask]
> Subject: Re: [TN] Conductive Epoxy Inspection Criteria on Flex for LED
>
> Although I am usually middle of the pack for efficacy of 3-D paste  
> inspection, it is critical when applying conductive epoxies.  The  
> criteria that I am aware of or have utilized are as follows:
> IPC-3406
> IPC-3407
>
> Before assessing visual criteria, I must first re-affirm Yuan-chia  
> Joyce Koo's position that HALT is essential to process verification.
> Normal prohibitions aside (do not use on a HAL (Hot-Air Lead-Free)  
> or HASL (Hot-Air Solder (Tin-Lead) Level)), then the ideal is to  
> make sure that the parts are not mashed into the epoxy.  The best  
> results I have achieved are with the epoxy compressed roughly 1/4  
> to 1/3, with 2/3 to 3/4 of the epoxy bond under the part terminations
>
> Also, make sure your stencil house has epoxy experience as they  
> will fabricate the stencil to different guidelines.
>
> Also, two past resources for me were Zymet and Parker Chomerics.  I  
> have used conductive epoxies from both and they were helpful.   
> Master bond also offers conductive epoxies but I cannot vouch for  
> their tech support.