OK.. Long story but I have to get a wet lay mould made from a section of an mould which has some surface issues and I want a good finish. Would a 2K lacquer work or do I really need to use duralbuild?

It is some damage in a mould which I have put some gel coat down into but there is still some small surface issues I just need to fill and polish back.. I am just going to make a master from it then re-make the mould complete anyway so just need to get one pull from it then I can finish off the surface more on the master.