You need to encompass the entire lure for protection and durability otherwise water will find a way to get in under the epoxy.
1. Only handle with Nitrile gloves to eliminate any possibility of surface contamination.
2. Use 30 min epoxy to allow more time to be able to use it and for it to flow out.
3.Use a brush and put on a thin coating.
4.Put on a lure turner until dry.
Instead of 30 min epoxy , a product I really like to use is Enviro Tex Lite from Michaels, AC Moore, or Amazon. (tip.50% Coupons can be used at craft stores)
Check out SolarBaits (a member here) video on how to apply.