Easy  peazy:  80 Deg C, 10 bars 1-2 hs.   depending on a  lot. You may
experiment a little. Metallurgists are right, I understand well, because
I've done thousands of plugs myself. Do you use carusel , single or hand
polishing? Finest stage: use diamond slurry? What size ?
Inge

On 4 January 2013 17:23, Ramakrishnan Saravanan <[log in to unmask]>wrote:

> We are making space quality MLBs. We are using hot mounting for micro
> section.
> My understanding is hot mounting(Phenolic power of Buehler at 150 Deg C
> ,180 bar &  5 minutes)  of PCB specimen will destroy the PCB specimen Our
> metallographers are against using cold mounting. The reason  is they claim
> poor edge retention & high shrinkage   and observing faults are difficult.
>
> Which method of mounting is best for micro sectioning PCB ?. Which is the
> best resin & hardener having low shrinkage and high edge retention ?.
>
> regards,
>
> R.Saravanan
>


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