Originally Posted by patr1707
I am currently re-coring the decks on my boat and have a choice to make, would it make sense to spend the extra money to get vinyl ester resin to rebed new core material then laminate a new top skin on it or save a couple dollars and go with polyester? I heard that vinyl ester has a tough time sticking to old and aged layers of fiberglass
, is this true for poly too?
What are the pro/ cons for each besides the cost. Would it be that much better to do it in vinyl ester?
Thanks for the input!
I have done a lot of glass work including bottom job, deck
recoring, new rudder
. I buy all materials form US Composites on line. I use their microballoons in a 635 epoxy slurry for all cores. It is absolutely waterproof forever. and very strong. I am sure you could also use their other resins. The resin you use above water
is not so important regarding water & blisters
. I was once warned by a technician that poly and vinyl should not be mixed but that epoxy will bond to either. If your boat predates the switch to vinyl you can be confident that PE will work. This is available cheap
at Home Depot. US Comp. aslo sell glass, kevlar, carbon fiber. I have found their prices usually better than other sources. Fiberglass , Epoxy , Composites, Carbon Fiber - U.S. Composites, Inc.
The 635 thin resin has no amine blush so you can do successive coats without special prep. It can be pretty well cleaned up with soap and water before it begins to react. Reaction time is very slow.