PBC gunk cleaning

"j.b. miller" schreef in bericht news:JCA1d.35850$% snipped-for-privacy@read2.cgocable.net...

I always use thinner to remove soldering flux after assembly; works great, though it will dissolve certain plastics. Don't know if it the best solvent for coke and coffee, I think water still works best then, but I have never tried that ;)

Jeroen

A hard stream of hot water and 409 and then attack them with a medium bristle brush.

Final rinse in RO or distilled water if you can. Blow dry.

Many years ago a friend of mine spilled a glass of port into his TRS-80, which stopped it working. It was OK after he cleaned the mess up with some damp tissues. Water would be best for coffee and coke.

Leon

If you can get hold of some freon (CFCs), that would clean it very nicely.

Regards Anton Erasmus

I used to work for a company that manufactured equipment to clean flux and other contaminants off pcbs without using CFCs (eg: freon). Methanol (wood alcohol) followed by a de-ionized water rinse is pretty good at removing most gunk. Use a soft-bristle tooth brush in the methanol wash to scrub off those stubborn bits. It shouldn't hurt anything on the boards.

Mark

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GMCFESIL: (Guy Macon's Cure For Electronics Soaked In Liquids)

(Feel free to repost, but please include this reference to my webpage at [

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I'd try Gumout carburator cleaner. Incredible stuff. Blast it on and it pours/evaporates of.

Try > Hello. I have several old PCBs that need to be cleaning of old coke and

I would avoid anything that aggressive. It may damage some of the component plastics

Also acetone- it will attack plastics. OTOH, isopropanol is certainly mild enough, and some petroleum solvents are okay, with care.

Best regards, Spehro Pefhany

Try what many manufacturers use: demineralized water. No damage to any plastic. Put the PCB in a hot air oven at 50 degrees celsius to dry.

I have cleaned TV and video remotes many times using this method.

Meindert

Denatured alcohol might be a better choice. Roughly 85% ethanol, 15% methanol.

Though natural rubber isn't particularly vulnerable to isopropanol. Perhaps there is some other material you are concerned about?

Regards,

-=Dave

Careful. There are all kinds of denaturing agents for alcohol. Some may be harsher than others.

I am concerned about the fact that every bottle of "rubbing alcohol" that the chemists I was working with had small amounts of other hydrocarbons in them, and the other hydrocarbons varied.

Anything we got from a chemical supply house only had what was on the label.

I used to have a bottle of 180 proof Everclear grain alchol. Great stuff. Can't seem to find it anymore though.

I use 190 proof. It is available in many shops in Tijuana. Each visitor can bring up to one liter over the border duty free. I pick up a bottle every time for use in cleaning delicate electronics.

In article , Guy Macon writes

I know someone who puts their boards in a dishwasher (no detergent!) with good results.

I have used my dishwasher (*with* detergent - but only for the first part of the cycle) to clean keyboards and mice and such (things that I am willing to risk losing), followed hy keeping the item in my car parked in the sun for a week or two to get it really dry. So far the items have all survived. I woudn't risk anything valuable with this method.

Oh, that stuff has much better uses than cleaning. Friend of mine has a great recipe - you take a gallon of apple cider, throw in a handful of cinnamon sticks, stir in one or two cups of sugar, and boil away about half of the water. Remove cinnamon sticks. Stir in a cup of Everclear. Chill. Serve. You may want to lay in a stock of Advil before trying this recipe, but it's delicious - it tastes like apple pie filling (in fact, he calls the beverage "apple pie"). He plans to make a thicker batch soon, by boiling away most of the water, and use the resulting goo as an ice-cream topping. I'll gladly be a beta tester for that.

Long long ago and far far away, in a Canadian Crown Corporation

At the same time the Quebec Liquor Board had available a potion known as 'Alcool', which was a pale imitation of the real thing (about 100 proof instead of 190). Also the environment of Montreal (especially Rougemont) had many farms and orchards which produced hard apple cider, in various flavors (sweet, normal, dry) which sold for Can$ 2.00 per real (imperial) gallon. That also powered many parties, and the Bostonions to whom I fed it wouldn't listen when warned that the end effects were dire. After discovering those effects those people couldn't face apples or anything derived therefrom for about a month.