Name of composition: Flashing microstars
Composition Type: effect star
Creator: Ronald Lancaster
Color/Effect: flash of light after a short delay
Preparation: 100 grams of the mixture is kneaded with 20 grams of a 10% nitrocellu-lose solution in acetone to form a homogeneous mass. It is rolled out on a star plate of about 8- 10mm thick and cut into a few pieces. These are dried at room temperature for one day and then further dried in an oven at 50°C for five hours.
They are then crushed into angular grains with a wooden mallet and an aluminium roller. Finally the grains are separated through a sieve to obtain small stars of 1.5 to 3.0 mm.
Version 1:
Barium nitrate 40%
Sulfur 20%
Magnalium (50/50) 40%
Version 2:
Stroncium nitrate 30%
Sulfur 30%
Magnalium (50/50) 40%
I maked version 2 with 5% dextrin and formed 1.5 mm grains. Use in fountain 20 mm with BP 60/33/7 + 10% microstars.
For this fountain need slowly BP, for example 55/35/10 or 50/38/12 (from book)
More information in R. Lancaster FIREWORKS Principles and Practice 3rd Edition, page 150
VIDEO: https://www.youtube....h?v=rfXSBFJuzCI
VIDEO 2: https://www.youtube....h?v=HBFn4NgxkvI
Edited by Pirotex, 18 March 2017 - 06:53 AM.