This is Green Stuff World Dye For Resin - Yellow (15ml)

Colouring dye for ultraviolet, epoxy and polyurethane resins. Not compatible with acrylic products.

For best results, we recommend adding a maximum of 5% dye to the mix, usually a drop or two would suffice. A thin dropper is included in the bottle for proper dosing.

All colour dyes can be mixed and matched to produce new colours.