{Stus-List} Hull Construction Question

Michael Cotton mpc51335 at yahoo.com
Thu Mar 25 19:16:35 CDT 2010


"You must "stick" to using it". Your sense of humor??
Michael Cotton
1990 C&C 37 Plus
S/V Blue Pearl





________________________________
From: "ahycrace at cox.net" <ahycrace at cox.net>
To: cnc-list at cnc-list.com
Sent: Thu, March 25, 2010 7:20:18 PM
Subject: Re: {Stus-List} Hull Construction Question

Epoxy will adhere very well to polyester however polyester will not adhere to epoxy. Once you use epoxy 
you must stick to using it. Basically its a one way street. I always use Epoxy for its adhesion property's and
strength. It is more expensive but a much stronger and I think superior product.
                                                                                        Gary Kolc
                                                                                        1976 38' mark I
                                                                                           "Liberty"
---- "Ronald B. Frerker" <rbfrerker at yahoo.com> wrote: 
> Pardon my ignorance, but this question is to assist my education.
> If epoxy will adhere to itself, but not to polyester and if polyester will not adhere to epoxy; then if the area is of unknown fill, wouldn't the safe choice be to use epoxy?
> Ron
> Wild Cheri
> 
> 
> --- On Thu, 3/25/10, Colin Beckmann <alchemist1 at rogers.com> wrote:
> 
> > From: Colin Beckmann <alchemist1 at rogers.com>
> > Subject: Re: {Stus-List} Hull Construction Question
> > To: cnc-list at cnc-list.com
> > Date: Thursday, March 25, 2010, 10:07 AM
> > To each their own, but I have done
> > this kind of work before and polyesters and vinykesters are
> > fine, as long as they are going back onto polyesters. 
> > They can't be applied on top of
> > epoxies.   The 3M product is far easier to
> > work with then epoxy and significantly less expensive. 
> > The 3M product is sandable in 20 minutes and has no issues
> > with amine blush.   It will all be covered by
> > epoxy hull waterproofing any.  
> > My only concern here is what is the compound that they used
> > to bond the 2 different parts of the hull.
> > 
> > 
> > Bill Coleman wrote:
> > > I would not use polyester for repair, it does not have
> > the adhesion that
> > > Epoxy does. I would use West thickened with colloidal
> > Silica.
> 
> 
> 
>      
> 
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