The purpose of coloring them is primarily aesthetic. Our old propellant was
a delightful shade of green from the copper chromite. Dying the new ones
will make them easy to distinguish ( not that that's necessary) and fun.
Other than staying away from TMO's and chemicals ending in -cene, are there
any other dye chemistries that are likely to significantly change the burn
rate.
Thanks for the suggestions. We'll report back if we discover one that works.
Sincerely,
Charlie
On Wed, Aug 22, 2018, 4:19 PM Terry McCreary <tmccreary@xxxxxxxxxxxxxxx>
wrote:
I've not done so, but the organic---no metallic elements and no
minerals---dyes used to make smoke bombs or dry organic pigments used to
make oil paint might be worth trying, as they are unlikely to affect
ballistic characteristics significantly in small quantities. You'd need
to know the actual formula or composition of the dye; for example,
viridian pigment is a form of chromium oxide and would increase the burn
rate.
Best -- Terry
On 8/22/2018 12:48 PM, Charlie Garcia wrote:
Hi All,
Does anyone here deliberately dye their grains, like AeroTech or CTI?
In particular I'm looking for a red dye, preferably in very small
fraction or a liquid. I've had the red dye that comes in RocketPoxy
suggested to me. Thoughts?
Sincerely,
Charlie
--
Dr. Terry McCreary
Professor Emeritus
Murray State University
Murray KY 42071
