[Public-List] Engine Paint Color

Andrew Johns johnsab9 at gmail.com
Thu Sep 12 09:22:51 PDT 2019


The emissivity difference between white and black paint is small.

https://www.infrared-thermography.com/material-1.htm

The color would be negligible when you consider what portion of the heat is
absorbed by the cooling system (convection) vs radiated through the engine
block.



On Thu, Sep 12, 2019 at 12:17 PM Marcelo D. Gentinetta via Public-List <
public-list at lists.alberg30.org> wrote:

> How do you prep the engine for painting?
> Marcelo
> #441
>
> > On Sep 12, 2019, at 11:14 AM, Mike Meinhold via Public-List <
> public-list at lists.alberg30.org> wrote:
> >
> > It is a pretty small effect so if it looks better it fine.
> >
> >
> > On Thu, Sep 12, 2019 at 10:33 Wes Gardner via Public-List <
> > public-list at lists.alberg30.org> wrote:
> >
> >> Just about every super yacht and large cruiser I've been on the engines,
> >> gensets, etc, etc are painted white and are so clean you can eat off of
> >> them...just saying...
> >>
> >>
> >> On Thu, Sep 12, 2019 at 10:04 AM Jonathan Bresler via Public-List <
> >> public-list at lists.alberg30.org> wrote:
> >>
> >>> Might silver/aluminum color be a good choice?
> >>> From Mike's post sounds like white (light colors?) do not radiate heat
> >>> well,
> >>> while dark colors do.  Dont know how silver/aluminum would do in that
> >>> regard.
> >>>
> >>> Would be easy to see leaks, oil, coolant, rust, and dirt on
> >> silver/aluminum
> >>>
> >>> On Wed, Sep 11, 2019 at 4:36 PM Glenn Brooks via Public-List <
> >>> public-list at lists.alberg30.org> wrote:
> >>>
> >>>> White will really show off any accumulation of dirt and grime.  I
> >> painted
> >>>> Dolce’s engine with a couple of spray cans of Volvo green, a
> moderately
> >>>> dark forest green, few years ago.  Looked real good and still enabled
> >> me
> >>> to
> >>>> see tell tale leaks and rust spots.
> >>>>
> >>>> Sent from my iPad
> >>>>
> >>>>> On Sep 11, 2019, at 11:56 AM, Mike Meinhold via Public-List <
> >>>> public-list at lists.alberg30.org> wrote:
> >>>>>
> >>>>> A small downside to painting engines white is that they will not
> >>> radiate
> >>>>> heat as effectively as a dark color
> >>>>>
> >>>>> On Wed, Sep 11, 2019 at 14:03 Ryan via Public-List <
> >>>>> public-list at lists.alberg30.org> wrote:
> >>>>>
> >>>>>> Hello All!
> >>>>>>
> >>>>>> I'm painting my engine soon and I'd like to change it from the
> >>> original
> >>>>>> reddish/copper to white, where I can see rust or leaks better and
> >> the
> >>>>>> engine looks brighter and cleaner. Is there any downside to doing
> >> this
> >>>> to
> >>>>>> the original Atomic 4?
> >>>>>>
> >>>>>> Thanks!
> >>>>>>
> >>>>>> --
> >>>>>> -Ryan Kiefer
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> >>>
> >>>
> >>> --
> >>> Jonathan M Bresler
> >>> S/V Constance Alberg 30 #262
> >>> Annapolis/Eastport MD
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