Re-pour over soft resin?

hi there!
ive seen similar questions on here about having their resin cure flexible.
Ive made a large round resin piece (18cm by 2cm thick) that cured hard to the touch, yet is still very flexible..and im so sad because i wont be able to display it how imagined it. im not sure if it was the type of resin i used or, just another issue.
my question is, can i pour another thinner coat over it, (both sides) maybe another brand of resin that will cure harder. do you think it will save my piece?
thnx! looking forward to your reply