Not using epoxy with matte is also more desirable if you're finishing with gelcoat. Not sure how some of the newer epoxies that cure without an amine blush would work with matte. I haven't tried them.
Vinylester resin is sometimes intimidating to DIYers because of the mix ratios. The West System proportional pumps make it so easy most of us just go for the epoxy. One thing I learned early on about polyester, vinylester and gelcoat applications was to "go metric". The suggested MEKP addition is 1-2% by weight. I used a small digital kitchen scale whenever I mixed them. However measuring by volume is usually close enough. Using mix cups and measuring cups labeled with mls (milliliters) will work. You'll need some of the small 30 ml measuring cups (medicine cups) for the MEKP. You won't get an accurate result if you're trying to measure 2-4 mls in a 500 ml cup. Whereas epoxy has arguably better bonding, vinylester resin is a lot less expensive and has about the same strength. Additionally, you avoid having to buy the West System proportional pumps. Dennis C. Touche' 35-1 #83 Mandeville, LA On Fri, Jan 3, 2020 at 7:21 AM Hoyt, Mike via CnC-List < cnc-list@cnc-list.com> wrote: > Hi Jon > > Yes. I have been told no mat with epoxy. Of course this was after I had > in fact used mat with epoxy. It was about the fibres of the mat not > reacting with the epoxy as they do with polyester resin. In my mind I > think of "dissolving" but of course that would not be good. > > I will let others chime in on the reasons. > > Mike > Persistence > Halifax, NS > > -----Original Message----- > From: CnC-List <cnc-list-boun...@cnc-list.com> On Behalf Of JP Mail via > CnC-List > Sent: January 2, 2020 7:35 PM > To: cnc-list@cnc-list.com > Cc: JP Mail <jon.peterpr...@gmail.com> > Subject: Re: Stus-List Re core my deck > > Thank you for the wisdom. And pics. No mat with epoxy? > Love me those Frers 33s. Looked at a few before Hideaway. Tried to make an > offer on one near home and couldn’t get through to owner. C’est la vie. > Jon > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > >
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