Transparent NANO dye for crystal resin dark yellow 5ml is, thanks to Nanotechnology, very effective for dyeing epoxy resins. Resin gets the required colour yet it stays transparent. Dye is mixed with crystal resin and is ideal for making coloured glass imitations or casts resembling coloured crystals. This pack is enough for dyeing 200-400g of resin, depending on the required colour saturation.