Post by Paxton
I haven't seen any blue comps with saran. Do you have any examples?
Also, according to shimizu PVC is ideal in high temperature flames and is
used in all of his magnesium fueled stars and organic red whereas most of
his other comps use parlon.
Do you have any other data that would help us decide which to use when?
If I remember they have different fuel values also which would help
determine its use.
I have seen go getter formulas that use saran as the binder also.
That's interesting - I have a collection of Go Getter formulas and while a lot
of them do contain Saran, it is not present as a binder. There are BTW a number
of different "Sarans" - it is not just one substance. According to the Dow
representative with whom I communicated, one of the chief qualities of Saran
materials is their *resistance* to solvents. When I asked him what would
dissolve them, the answer was practically nothing.
The Saran I got from Skylighter is only soluble in MEK (and then only
sparingly), not in absolute alcohol, acetone, xylene or toluene. It would not be
a very practical binder for large projects because it takes so much solvent that
any comp made with it would shrink probably 2-3 fold or more on drying. Of
course, Saran's resistance to solvents could also be put to practical use if you
wanted microstars that were to be used in an NC-bound or Parlon-bound matrix