Square gives you more flake in a given area because we do not cut the corners off, hence square give you more flake which gives more "pop". Compare how much more flake that you get with a square flake compared to hex!
Gold Holographic Metal Flake Glitter .008 Hex Resin Epoxy Resin Casting Hot Rod
Chunky Gold Holographic Metal Flake Glitter 0.040 .040 Resin Epoxy Casting
Gold Holographic Metal Flake Glitter .015 Automotive Resin Epoxy Guitar Crafting
Hemway Gold Holographic Metal Flake 0.015" 100g Auto Car Bike Glitter Paint
GOLD HOLOGRAPHIC Metal Flake Large 2oz - Custom HOK Hot Rod Chopper
