P3D Heat seal mounting questions

[Paul Talbot <ptww@xxxxxxxxx>]

I have never used heat seal mounts for my own mounting,
and have never wanted to do so.  But I'm curious as to
how some things are done with these mounts.

In the pictures in the Reel-3D catalog, they appear to
show Wess tabs being used with heat seal mounts.  How
common is it to use something to hold the chips in place
before sealing?  Do most folks use the Wess tabs or
something else?  How easy or difficult is it to keep
the chips from moving around in the mount before and
during sealing if you don't secure them first?  Does
it vary depending on whether you are using an iron
versus a laminator device?

The picture in the catalog also appears to show a
split in one side of the mount.  Do you generally
seal one side, then place the other chip relative
to the first and seal the other side?  Or do you
put both in and seal the whole thing at once?  What
is the purpose of the split in the mount?

How much time, temperature, and pressure are required
to seal the mounts?

Thanks!

Paul Talbot