Hi,

I bought Pigma Micron pens from University Products, and had trouble
with the B-72 wiping away my numbers, after what I thought was a
reasonable drying time.  Someone told me that pigment pens don't adhere
to the B-72 (or acrylic in general) - sorry that I don't remember the
source.  I haven't found a solution, but sidestepped the issue by
printing the numbers on paper then adhering the paper to the object.  I
learned about it on this list, you can check the archives for more
information.

I believe the B-72 is meant to be very thin, for numbering purposes.
 You can use it as an adhesive when it's thicker.  Has anyone else heard
this?  (I also have the problem of the acetone evaporating over time,
even when I thought the bottle was tightly sealed, but the B-72 can
easily be reconstituted with more acetone.)

John Marks
Geneva (NY) Historical Society

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