Epoxy Question

[surfrod]

I tried to coat one of my plugs in Epoxy.
I using loctite quick set epoxy.
I mixed the epoxy and added some fine pearl sparkle to the mixture and it looked great. I slopped the goo on the plug and rotated it so the epoxy would level out. It looks fantastic.
BUT.....it's been 3 days and the epoxy is still a little tacky.

Question..... is there additional drying time required when
you mix in sparkle.

I am also building some Epoxy minnows to use as droppers.
I added regular size silver sparkle flakes to this mixture and it started to set up but never dried. I hung the minnow to dry but next morning, the epoxy had sagged and I wound up just wiping it off the hook since it never hardened.

Any advise would be appreciated.
Thanks