NavList:

Thanks for the information. Sounds appropriate.

Agreeing that spraying probably is not a good
idea, for several reasons, does the Rustoleum/Krylon
primer & finish come in a brushable form  ?

How do you avoid brush marks  ?

Cordially,
Courtney


----- Original Message -----
From: "Red" <hellosailor@verizon.net>
To: <NavList@fer3.com>
Sent: Thursday, September 07, 2006 7:05 PM
Subject: [NavList 1223] Re: Sextant on ebay


>
> Lacquer was always more of a high end finsih, I'd be willing to bet it
wasn't
> used on a soviet sextant. And "real" lacquer isn't used much today, too
much
> volatile content. Odds are the sextant is some type of baked enamel
finish, and
> a primer for enamel, plus another enamel (Rustoleum, or Krylon) coat over
it
> should do fine.
>
> Spraying it with anything is still going to get spray in the bearings,
etc.,
> unless they are masked awfully well. I can't see this being a good idea
unless
> the sextant is disassembled before painting. And even then...the paint
will
> affect the resale value. (Give it a clever name like "PussyCat Pink, used
by
> offshore houses of ill repute!" and you might even get more bucks for it
on
> eBay. "Trump Blue, custom made for Donald Trump's Yacht." <G>)
>
>
> ----- Original Message -----
> From: "Bill" <billyrem42@earthlink.net>
> To: <NavList@fer3.com>
> Sent: Thursday, September 07, 2006 6:13 PM
> Subject: [NavList 1220] Re: Sextant on ebay
>
>
> >
> > Courtney wrote:
> >
> > > I hope I'm not wearing out my welcome....
> >
> > More like the exhausting the knowledge stored in my gray matter or paint
> > locker.
> >
> > > but, it being a Russian naval sextant, what would you assume
> > > they finished it with, say 25 yrs ago ?  Enamel, lacquer, or ??
> >
> > I believe lacquer was an automotive finish before enamel.  My historical
> > knowledge on when enamel went into common use is not good, but it has
been
> > around for a long time.  At least 25 years.  It would be the choice over
> > lacquer for a sextant.  Ken of Celestaire would be your best source of
what
> > was used when.
> >
> > > What would be the more durable in a marine environment ?
> >
> > Enamel would be my choice over lacquer for a sextant. (Note there is a
> > difference between furniture and automotive lacquer).  Ken of Celestaire
> > would be your best source of what was used when.
> >
> > If starting from bare metal today, perhaps a two-part epoxy, anodized or
> > electrostatic powder application?
> > >
> > > When you say 'good quality enamel' what's the difference
> > > between good and less so, chemically  ?
> >
> > No idea chemically.  A cheap enamel on a car might last a few years
before
> > it starts to chalk.
> > >
> > > More generally, what makes up lacquer other than the alcohol
> > > solvent and some beetle stuff; and, what is the solvent and solute
> > > in enamels ?
> >
> > *Shellac* is ground up beetle stuff dissolved in alcohol.  I don't
recall
> > (if I ever knew) what the chemical makeup of the lacquers, enamels, or
> > enamel thinners are.  Enamel thinner comes in different formulations
based
> > on spraying conditions (temperature, humidity, and size of area to be
> > sprayed).  Some enamels can also be catalyzed for a quicker cure--almost
a
> > must if you cannot bake it.  Solvent-based enamels come as "synthetic,"
> > Acrylic and God knows what else these days.  On the other hand
Rust-Oleum
> > "enamel" is oil based.
> > >
> > > Pardon my ignorance and thank you for your patience,
> > >
> > Pardoned.  Short of hitting my library (which is out of date on
automotive
> > finishes as the low-VOC/medium and high solids and clearcoat finishes
evolve
> > at a rapid pace based on government pollution regulations) I would
suggest
> > you do what I would have to do, start Googeling.
> >
> > Or visit a local automotive-paint supplier.  By the time you teach
yourself
> > everything there is to know about paint to date it will be obsolete.
> > (Suggest a Ph.D. in chemistry to keep abreast.)
> >
> > Bill
> >
> >
> > >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.1.405 / Virus Database: 268.12.1/440 - Release Date: 9/6/2006
> >
> >
>
>
> >


--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to NavList@fer3.com
To , send email to NavList-@fer3.com
-~----------~----~----~----~------~----~------~--~---