Blue Epoxy Pigment (Colorant, Dye, Tint) 6cc (0.2 oz.)

is it transparent or opaque?

Can this liquid be used with this epoxy resin: https://www.amazon.com/gp/product/b07vyqtfjx/ref=ox_sc_act_title_2 ?

Can I add this to epoxy swimming pool paint, ti alter the color?

Will this work with polyester fiberglass resin (Bondo)?