The following is a link to a boston whaler website called contnuouswave. This particular link is to an article about fiberglass repair, but the forum has a repair/modification section that has the answers to any question you may have regarding fiberglass or any marine related repair or restoration. http://continuouswave.com/whaler/reference/whalerRepair.html It is really a good website with a ton of great pictures of boats being restored by people just like you. If you have an old hobie that you are about to start a restoration project on or if you just have some dings you want to fix, go to the repair/modification section in the forums and get all the postings for the last year or so. Grab a six pack and prepare to read all night. Have fun. -Matt

quick questions, someone once told me that Fiberglass does not cure completly, in theory it cures to a point then slowly over years.. Does that mean the older the boat the stronger the hull becomes?

does anyone else know if that is the case with carbon and kevlar as well ?

I've heard that about concrete, but never about fiberglass resins. The rate that the matrix cures is not related to the fiber (glass, kevlar, carbon), but to the resin (polyester, vinylester, epoxy). Some cure faster and some cure slower, but I'd say that any of them would be fully cured within a month or so. I don't know too much about polymer chemistry, though.