[R-390] Epoxy paint toughness

[David Goncalves]

On this, I did have my meter baking at about 150, but
I did not wait for the paint to dry; the toaster oven
was the only dust-free spot I had in the room. 

I'll try letting it dry next time. Also, I recently
had a can of Brownell's Metal Coat Epoxy. Anybody had
good luck with this stuff?


Dave Goncalves

--- Gene Beckwith <jtone@sssnet.com> wrote:
> Gents,
> 
> Re painting problems and techniques...
> 
> Have used several different brands of paint
> including the Krylon type...all
> with good success...
> 
> There are too many variables to say exactly what
> might have happened to the
> "meter re-hab" project...but...
> 
> Seems as thought I recall a comment about a "Toaster
> Oven"  ??
> 
> Any idea what the actual temperature was?  Have seen
> tendency to 'crack and
> line' when temps get too high...
> 
> Even the best quality paints can literally 'shrink'
> and hence 'crack' if
> temps are too hight and sustained during curing
> process....
> 
> For suggestions on temperatures...I'm regularly
> using aprox.  150 degrees
> max...utilizing the indicated temp indicator on the
> oven
> itself...(digital)....note this is the minimum this
> oven will operater
> at...the oven is in my wife's kitchen...and yes, I
> get to use it for paint
> curing...
> 
> Did find one time, when my wife didn't know I was
> "baking," when she up-ed
> the temperature...I discovered it after about 30
> minutes...at 300
> degrees...and Yep...there were signs of early
> cracking and spider webing...
> 
> Cooler temps are ok...the object is to remove
> solvent and 'gently' allow the
> chemistry to work.  So, loooonnnnger and a bit
> cooler is fine...
> 
> And btw, before baking...use your nose...all hint of
> solvent should be gone
> before heating...may take a bit of time...like
> several days...but, painting
> is not a race...but a search for quality...so take
> ur time ... no solvent by
> the nose test...then baking for two to three hours
> at minimum temps...in the
> range of  150 degrees F...
> 
> Have done several St. J. Panels, knobs, and lots of
> other 19 inch custom
> panels here for the station in a variety of colors
> without problem and good
> durability...
> 
> I usually use Rustoleum...but have had good success
> with many others as
> listed by others...sometimes, if the color is what I
> want, I use
> it...regardless of the brand...so far so good...
> 
> Hope this helps...there has been enough stuff on the
> list over the past
> several years to write a book...it is entirely
> possible to do absolutely
> professional work with a spray can and patiences...
> 
> Good luck es 73,
> 
> Gene
> 
> W8KXR


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