What Are Paintballs Made Of? Shell Materials, Fill Ingredients, and Buyer Questions
A comprehensive materials science guide to paintball composition covering the two-part structure (shell 10-15% of weight at 0.3-0.5g, fill 85-90% at 2.5-2.7g), six shell ingredients with sources and purposes (gelatin at 150-300 bloom strength with 200-250 bloom for tournament grade, glycerin as primary plasticizer, sorbitol as secondary plasticizer, titanium dioxide as opacifier, shell pigments for color, and purified water as solvent), six fill ingredients (PEG at 40-60% concentration with thick fill at 60-70%, purified water as secondary carrier, food-grade FD&C dyes, optional pigments for opacity, food-grade preservatives, and optional thickeners like xanthan gum), tournament vs field grade material differences across six factors with tournament grade using 20-40% higher cost materials, safety confirmation (all ingredients food-grade or cosmetic-grade, non-hazardous MSDS classification, PEG is NOT ethylene glycol), and specialty formulations (biodegradable with plant-based glycols, water-soluble, glow-in-the-dark with strontium aluminate, custom color with Pantone-matched dyes).