[Milsurplus] Milsurplus--- wrinkle paint

[Bruce Gentry]

Bruce Gentry wrote:
> Larry Snyder wrote:
>> I've gotta believe that the 500W halogen construction lights would
>> do a decent job cooking it once the appropriate distance was found.
>> -ls-
>>
>>
>> "Todd, KA1KAQ" <ka1kaq at gmail.com> wrote:
>>  
>>> On Wed, Aug 4, 2010 at 8:03 PM, AI4WM Bill <ai4wm at yahoo.com> wrote:
>>>
>>>    
>>>> The heat gun was faster, but not as nice even texture of wrinkles 
>>>> as the oven.
>>>>
>>>> The oven took longer, but the quality of the finish was much more 
>>>> consistent and nicer.
>>>>       
>>> The former can happen when uneven layers are applied, Bill. But I've
>>> always wondered if the oven approach doesn't perhaps allow the paint
>>> layers to 'flow' somewhat before they set up, evening things out. I've
>>> experienced the exact same results as you expressed here (my heat gun
>>> was a 1500 watt hair blow dryer).
>>>
>>> And I have a RAO-7 cabinet painted with VHT paint back in the late
>>> 70s/early 80s that wasn't baked and is still a bit tacky.
>>>
>>> ~ Todd,  KA1KAQ/4
>>>
>>>     
> In the late 1980's I was working in the old Smith -Corona Typewriter 
> plant here in Syracuse. The paint drying ovens were still intact 
> because they were on the top floor and too difficult to remove when 
> the building was converted to a community collage.  They were steam 
> heated, probably with superheated steam en route to other processes or 
> the  steam engine generator that supplied much of the power. The heat 
> was certainly even and well regulated. One thing all this brought to 
> mind is the air in the oven was changed fairly frequently and not 
> mixed with combustion gasses from a gas burner. I wonder if the drying 
> of the paint was improved by hot, fresh, oxygen-rich air in the oven, 
> as opposed to air loaded with paint fumes or combustion products. 
> Whatever the answer is, the finishes on a lot of older equipments  
> were made with a great deal of energy expended and pollution 
> produced.   Bruce Gentry
>