The four main requirements in order for your product to qualify are:

1. Solid at room temperature.
2. Ability to melt between 110-400 F.
3. Ability to drip easily.
4. Crystallize upon cooling within 60 seconds.

A list of known chemicals that are generally pre-qualified for pastillation are:

In A-Z order

Acrylic resin Aluminium nitrate Aluminium sulphate Amine Ammonium nitrates Ammonium phosphates Antioxidants Asphalt Atactic polypropylene Benzoic acid Biphenyl Bisphenol A Bitumen Calcium Chloride Candy Cobalt napthenate Caprolactam Catalysts Caustic soda Cetyl alcohol Chewing gum base Chocolate Cobalt stearate Detergents Epoxy resins Esters Ethylene vinyl acetate Fats Fatty acids Fatty alcohols Fertilizer Fragrances Gelatine Gum resins Herbicides Hot melt adhesives Hydrocarbon resins

Magnesium chloride Maleic anhydride Niacinamide Nickelcatalyst Paradichlorobenzene Paraffins Pesticide Phenolic resins Photo gelatine Phtalic anhydride Pigments Pitch Polyamide Polyester Polyester resins Polyethylene Polyethylene glycol Polyglycol Polypropylene Polystyrene Polyvinyl alcohol Potassium Phosphate Powder coatings PVC stabilizer Silicone resin Sodium sulfide Sorbitol Stearic Acid Stearate Styrene resin Sulphur Tall oil resin Urea Waxes Zinc nitrate Zinc Stearate