I've got a Mistral Explosion II, in what I presume is DCS, that needs a repair. Is this epoxy or polyester for the matrix?
Not familiar with their construction and they made them over many years so it will vary in construction type - but very much doubt there was any polyester involved at all.
It will be an epoxy repair job ....... the only thing to consider is if it has a funny thin plastic shell over the outside and that may complicate things ever so slightly
Pics?