You are absolutely right! My misteak! I got my catylists and releases mixed up.
Jerry jerrymontgomery.org ----- Original Message ----- From: "Clarence Andrews" <[EMAIL PROTECTED]> To: "For and about Montgomery Sailboats" <[email protected]> Sent: Tuesday, April 18, 2000 5:17 AM Subject: Re: M_Boats: Gel Coat Matching > MEKP is the hardner used as the catalyst for polyester and/or polyvinyl > resins . Could you have meant polyvinyl alcohol? The books are full of > things I don't know about these stuff, so set me straight. Thanks. > > Clarence Andrews > M-17 Carpe Ventum #604 > > ----- Original Message ----- > From: "jerry" <[EMAIL PROTECTED]> > To: "For and about Montgomery Sailboats" > <[email protected]> > Sent: Tuesday, April 19, 2005 12:42 AM > Subject: Re: M_Boats: Gel Coat Matching > > > > MEK Peroxide (methyl ethel keytone) is the water-soluble plastic film that > > you spray over a gel-coat repair, to keep off the oxygen, which retards > the > > curing process. > > > > I better way on an older boat is to use a two-part polyurethane. Rather > > than LP (linear polyurethane), an automotive type is better because you > can > > sand out any runs, and it stands up to UV better. You can spray it over > > gel-coat (prep just like you would when using gel-coat, then wetsand out > the > > edges and buff. It'll be the shiniest spot on the boat, esp[ecially ten > > years later. The best auto-type polyurethane is Deltron, made by PPG. > You > > can't get it many places now in CA because of harrassment from the air > > quality people, but it IS still legal for boats and airplanes. > > > > Jerry > > jerrymontgomery.org > > > > ----- Original Message ----- > > From: "Bob Olson" <[EMAIL PROTECTED]> > > To: "For and about Montgomery Sailboats" > > <[email protected]> > > Sent: Sunday, April 17, 2005 10:01 AM > > Subject: Re: M_Boats: Gel Coat Matching > > > > > > > Bill, From what I've been able to glean from various websites regarding > > > gelcoat, is that its primarily a production process material. In other > > > words, it works best when sprayed into a mold as the first layer in the > > > production process before the layers of fiberglass. I have a feeling > > > that it would be difficult to replicate the original gelcoat look by > > > applying it over a hull repair. And, I'm guessing that it would need to > > > be covered in order to cure properly. Typically, a boat shop would spray > > > a water soluable material over the gelcoat as a final step. After the > > > gelcoat had cured, then the top layer would be washed off. > > > > > > That's why I'm leaning toward a linear polyurathane (sp?) product. More > > > expensive than cocaine, but it sounds as though it's the right product > > > for post production repairs. > > > > > > How the hell do you de-core part of a rope for a centerboard pendant? > > > That's the thing that got me boggled right now. > > > > > > --Bob > > > > > > [EMAIL PROTECTED] wrote: > > > > > > >In a message dated 4/17/2005 12:08:11 AM Pacific Standard Time, > > > >[EMAIL PROTECTED] writes: > > > >West System believes that you can put gelcoat over their epoxy. > > > >Bob, > > > >I was about to go buy another book when I had the right one all along > > (West > > > >System Boat Repair & Maintenance). The book is inexpensive, around > $3.00. > > On > > > >page 8 it refers to the steps needed to use gelcoat over epoxy. Looks > > like my > > > >little projects will be fine with the use of epoxy only. No need to use > > > >polyester resin for the small hole repairs I've got in mind. However, > > they do > > > >recommend a long epoxy cure time of two weeks prior to putting on the > > gelcoat finish. > > > >Bill > > > >"Tipperary" > > > >_______________________________________________ > > > >http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > > > > > > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > > > > > > > > > _______________________________________________ > > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > > > > > > _______________________________________________ > http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats > _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
