Petroleum jelly
From PyroGuide
Formula: N/A
Synonyms: Paraffin jelly, mineral jelly, Vasoline/Vaseline, petrolatum, soft paraffin.
Description: A semi-solid mixture of hydrocarbons used mainly for Whistle rocket mix. Clear to white solid. Used to desensitize, waterproof and bind various compositions.
Hazards: May cause eye, skin or digestive irritation. Material presents a low health hazard in normal use.
Sources: Vasoline or other petroleum jellys are found in most supermarkets or drug stores.