I grew up in a public sailing club. All the boats (originally Rebels, starting in 1960 and then O’Day Day Sailors started sometime in the 1970’s) were built using polyester resin. The “use and abuse” they underwent as training boats for rank
beginners, both youth and adults, proved the strength, flexibility AND rigidity (when needed) of polyester and fiberglass construction. These were U. S. built boats, so I cannot comment on boats built in China. The Day Sailors are still going strong. I don’t
remember who said it: but there never was nor has been any hint of “water infiltration into fiberglass/polyester combination.
"When does he ever think? If he were to sell his brain, he could claim it had never been used.
On Jul 6, 2020, at 9:25 AM, Mark Suszko <mark.suszko@...> wrote:
?
The entire boat was made from polyester resin, ever since they switched from using wood. At least for fifty years' worth of production. I'd be curious to know if the more recent builds in China or England are made from polyester
or epoxy resin.
You can find Bondo resin, hardener, cloth and filler, cheaply in any auto parts store and also the auto parts section of Home Repair megastores. A small basic kit is around twenty bucks, some come with a small pack of glass
cloth, but you generally have a better selection of cloth and mat online.
Polyester does have a pungent odor as you mix it; you want to do this outside or in a well-ventilated garage or shop, and wear nitrile gloves and maybe a respirator. OTOH, most of our repairs are not really very large, the
quantities used are small, so the exposure risk isn't quite as bad. ?It's not super-common but you *can* develop an allergy to either Polyester OR epoxy if you over-expose to them, so be careful and hygienic using either one.