I am using TW Graphics 5000 series ink and have been having some major issues with the ink drying in my screens after basically one pass. Do I need to use some sort of additive mixed in to the ink to prevent it from drying so quickly?

I am trying to print a fluorescent pink, so the mix I am using is:

150 grams of 5000 series clear (75%)
50 grams of 5000 series white (25%)
70 grams of fluorescent powder (35% of the above weight)
10 grams of flattening powder (5% of the above weight)

Any thoughts or recommendations would be extremely appreciated!