[Hallicrafters] Cleaning

[Greg Gore]

All good suggestions. Everyone has their favorite but generally you want to avoid any cleaners on the harsher end for delicate painted surfaces. Anything with ammonia will usually cause problems on delicate screen printed letters, numbers and witness marks and lines, etc. Things like dial scales and calibrated slide rule dial windows can sometimes even be damaged with just hot water, but may be perfectly OK with cold water. You just have to test what you're thinking of using on parts from a parts set or absent that, in an inconspicuous area. Generally speaking diluted Dawn dish detergent works well for a lot of this. The harsher more aggressive cleaners do have their place in other areas such as cleaning a really dirty chassis or cabinet. I often use an oxidizer like Industrial grade 409 mixed 50-50 with ammonia in a plastic sprayer bottle for the tough jobs but let experience be your guide before you grab that one. Simple Green for Aircraft is another good one as is WD40 sometimes. Even very nasty Easy Bake Spray Oven Cleaner but you have to know what you are doing with things like that. For example certain metal platings will react with it while others will not, they'll just get clean but you have to be careful and know before hand what is about to happen when you apply it.
Greg GoreWA1KBQ


-----Original Message-----
From: John M. Karian <wetlandsplendors at gmail.com>
To: Thomas Lewis <n4tl2tom at gmail.com>
Cc: Hallicrafters at mailman.qth.net
Sent: Sun, Nov 15, 2020 10:55 am
Subject: Re: [Hallicrafters] Cleaning

I use eyeglass cleaner solution - seems to work. 73 KB3H

Sent from my iPhone

> On Nov 15, 2020, at 10:43 AM, Thomas Lewis <n4tl2tom at gmail.com> wrote:
> 
> Dan
> 
> Try waterless hand cleaner without pumice.  Try it in an area that will not
> be seen first. Make sure there is no pumice, that will leave scratches.
> 
> 73 Tom N4TL
> 
> 
> 
>> On Sun, Nov 15, 2020 at 10:35 AM dan goin via Hallicrafters <
>> hallicrafters at mailman.qth.net> wrote:
>> 
>> Does anyone have any tips on how to clean the smuges and i guess smoke
>> stains, without damaging the paint or lettering?
>> Thanks dan
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