Can boat PU resins be used on surfboards?

Hi all,
Just got half a tin of norglass polyester finishing resin off a mate and I’m wondering if this would be fine to fix up an old board?
This is my first experience with surfboard repairs so have pretty much no knowledge on the topic however have worked with fibreglass in the past, my main concern is that is resin may not be designed for high stress situations or that it is some kind of deck finisher.
It is under finish coats on the norglass site and is the northane gloss pack so if anyone has time any help would be much appreciated!
Just got half a tin of norglass polyester finishing resin off a mate and I’m wondering if this would be fine to fix up an old board?
This is my first experience with surfboard repairs so have pretty much no knowledge on the topic however have worked with fibreglass in the past, my main concern is that is resin may not be designed for high stress situations or that it is some kind of deck finisher.
It is under finish coats on the norglass site and is the northane gloss pack so if anyone has time any help would be much appreciated!