P3D re: Heat seal mounts - perfs showing

[Paul Ivester <pi@xxxxxxxxxxxx>]

Sy Goldberg <syharriet@xxxxxxxxx> wrote:

<<I just started mounting my first roll of 3d slides. I
am using the heat seal cardboard mounts. My problem is
that after I line everything up and tape the chips in
place I find that the sprockets show through in one or
both areas, many times, when I view the slides.>>

This became more of a problem when the adhesive changed 
from a dark green to a light blue.  At first, what I did 
was darken the edges of the opening with a black marker.  
This was quite time consuming.  Up until now, I had been 
mounting with the larger opening toward the observer.  
Now, when I use heat seal mounts, I mount with the chips 
facing downward, right image on the left, left image on 
the right.  You can still check the window in this 
position.  I then seal the mount and view it from the 
former bottom.  The perforations are no longer noticeable.  
Heat seal mounts are not totally opaque, but are cheap 
and can be easy to use.

Paul Ivester