Inflatable repair advice needed
 

Hello All,

My beloved old Metzler Aztek S has sprung a leak. When I opened the repair kit,
the
hardener part of the adhesive mix is all dried out.

West Marine folks said that there are two types of repair adhesives: pvc and
hypalon.
Does anyone here know which would be appropriate for a 1970's vintage Metzler
Aztek?

Any other repair/maintenance advice gratefully accepted, thanks in advance!
-Edward