Appearance: White solid powder
CAS #63148-65-2
Butvar B-98 resin has been a long time favorite, perhaps more popular at one
time in Europe than in other parts of the world, but is an excellent support
film for TEM grids. It is usually dissolved 2% in chloroform. This
particular "grade" of Butvar should not be confused with other "grades"
such as Butvar B-69. This particular grade of Butvar (e.g. B-98) has also
been used as a replicating material for TEM replicas. However, the high
solvency of chloroform would tend to render it not the material of choice
if being used on a polymeric surface which might be changed by the solvent.
The same would probably be true for ethyl acetate.
The making of high quality TEM grid support films is truly an "art" and does
take most people some amount of time to learn. Therefore, once you have
decided to do your own grid coating, then take advantage of some of the
tips from the SPI grid coating
experts! Or if you would rather short circuit the time otherwise needed
to look at your important samples, consider the purchase of
grids already custom coated
by SPI Supplies.
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