Originally Posted by barnakiel
Why is this? My boat was built back in 1980 to specs made in 1967! She does not seem a rocket science (all lamination done by hand) and I bet materials back then were nothing fancy (today they ARE fancy = advanced - they have seen decades of improvement).
What are the (technology? materials?) differences that cause some designs to blister once scratched while allowing other designs to wear exposed grp meat for weeks without any apparent consequences?
you are right it wasn't rocket science but there were MANY differences between even models from the same manufacturer in the same year....different resins, methods, application...etc..etc
there's ton's of info on hydrolysis/blisters internet
scout it out...a lot of misinfo too so if you do have bottom problems you need to seek out the few who really have studied the subject (yard or individual).
if you don't have problems...you may not..but until you remove the gel coat or do some random coring...you never know how bad your boat may be hydrolysing.