Varnish Fluo Yellow
Superb varnish that dries fast and penetrates well. Gives you strong and shiny heads.
The Fluo Colors are really crazy bright......
Perfect as an indicator on a beetle as well! look at the video by Davie McPhail.
You can also use it to color UV Glue (see photo)
You can also use this color for an eye on a booby or streamer like this;