引用第2楼mawenhao于2010-08-01 00:03发表的  :
　Step 2:  Molding the grains
　　A bit of propellant has been heating in the toaster-oven at 200 degrees.  After 20 minutes or so, it is nicely soft..
　　DO NOT HEAT PROPELLANT IN A MICROWAVE OVEN!  It will ignite!
　　The propellant is recrystallized KN/sucrose to which 1 percent red iron oxide (Fe2O3) has been added.  This gives it a brick-red color, and increases its burn rate.  Kn/dextrose works too, and  does too, although it burns with a little less enthusiasm.
　　A small chunk of propellant is cut off, rolled into a slug, and pressed into the longer molding tube with a short stick.  A little more may be added while it is still hot.  The tube is filled to within about 1/8 inch of the top, and pressed down firmly.
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