those liquid chrome pens take MONTHS to actually cure. I've seen a couple ppl online mention having to wait 3 at least 3 months before they could touch the figure they used it on. Another poster mentioned they waited about 6 months. That's just too long to wait when a simple paint job could do the trick.
Gloss black primer base coat, then use some SpazStix chrome spray from the can and you'd be good to go.
Or, gloss black primer base coat, then (while still a bit tacky) use some brush on powdered chrome pigment.