[R-390] More cleaning info

[Perry Sandeen]

List here is an update on some of the cleaning materials mentioned in previous post.
The simple green cleaner Bill Riches uses:
Simple Green® ExtremePrecision Cleaner, 1gal., Clear (SMP13406) US $35.62/ea FreeShipping (Ebay). It's specifically made for aircraft cleaning.
Wenol red or blue is about $12 for 50 grams.
I've used Mothers Aluminum polish on my SP 600's.  Some times I add some Bon Ami ONLY cleanser as it is non-chlorinated and it doesn't scratch.  The Mothers polish will leave a bit of oily residue which is easily washed off with liquid dish soap.
If one is re-working a SP 600, replacing all the easily accessible screw with SS makes for a much nicer looking receiver. For small amounts Ace Hardware and/or True Value stock an enormous variety.  I use Phillips head screws as the are easier to tighten W/O slipping and scratching the chassis.
If one is planning to do several receivers, McMaster Carr online has every screw in boxes of every type that you will ever in your life. There delivery service is amazingly fast. 

73
Perry KM6FQV