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cleaning electrical connections

  • Thread starter Thread starter smoothbored
  • Start date Start date
S

smoothbored

Guest
Got some good tips off cliff's source. Have no idea were to purchase hydrofluoric acid, and how will it affect the hard-shell connectors. any tips? thanks again.
 
http://corrosion-doctors.org/Acids/Hydrofluoric.htm
Hydrofluoric (HF) acid is used mainly for industrial purposes (e.g. glass etching, metal cleaning, electronics manufacturing). HF acid also may be found in home rust removers.
Click to expand...
It also looks like its used to etch tooth enamel and to etch concrete.
http://www.ebay.com/itm/Acid-Hydrof...657?pt=LH_DefaultDomain_0&hash=item4170f2fc01
http://www.saversystems.com/product...ucts/masonrysaver-no-rinse-concrete-etch.html
Rust remover. http://www.baneclene.com/catalog/whink_rust_remover.html

Bumble around and you should be able to come up with something...
 
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Hydrofluoric acid is extremely dangerous, as RB's link says. Do not use it unless you are a chemist and have special training in its use, from a person who has experience in the use of HF and other highly toxic chemicals. Note that the link to health risks says that the product is only for professional use, not for consumers.

Other kinds of contact cleaners can be used. All electronics supply stores carry them. Builders' supply stores such as Lowe's and Home Depot carry them. We've had several threads on them. De-Ox-It has a following. It can be bought from Fryes.

Small brushes can also be used to remove corrosion. While I've not used them, i've been told that brass brushes for cleaning barrells of 22s and smaller work well.

The chance that there is corrosion and at the interface between copper wire and brass or aluminum connectors is significant on bikes the age of ours. If the above methods don't work, it seems better to me to remove the connecters and replace them. We've had many threads on that, too. The consensus among those who seem to know the most is to crimp and solder.
 
Contact cleaner with an acid brush. Depending on the location I than give it a spray with ACF50 or I coat lightly with electrical insulating compound. It will not interfere with a physical connection, and will reduce further corrosion later. If its in a dirty location I use ACF50 as it doesn't hold dirt like the insulating compound does.

A properly cleaned connector will give you no troubles. Its the neglected ones that give resistance (heat) and fail giving folks the idea to remove the connector in favor of a solid connection.
 
still looking.

still looking.

Using Spray contact cleaner on a brass bullet type connector with a clear plastic cover will not clean a green/corroded metal. check bass cliff's harness cleaning pictures. what ever they used made the brass look like brand new. :?:
 
Yes, you need an acid to reverse chemical corrosion. Contact cleaners just won't do it. I've had good success with Naval Jelly, the rust removal stuff you can get at almost any hardware store. My multi-step process (wear proper protection, particularly eye protection for steps 2-3):

1) If the contacts are actually dirty, clean them first. Brake cleaner works well.

2) Dunk a few brass connectors at a time in a baby-food or similar glass jar full of Naval Jelly. Soak them for at least 10-15 minutes.

3) Vigorously rinse in warm water to remove all of the naval jelly. If you can't get all the Naval Jelly out, shoot it with some brake cleaner.

4) Spray with WD-40 to displace the water.

5) Spray with brake cleaner.

6) Coat with dielectric Silicone compound before re-assembly.
 
mike_of_bbg said:
Yes, you need an acid to reverse chemical corrosion. Contact cleaners just won't do it. I've had good success with Naval Jelly, the rust removal stuff you can get at almost any hardware store. My multi-step process (wear proper protection, particularly eye protection for steps 2-3):

1) If the contacts are actually dirty, clean them first. Brake cleaner works well.

2) Dunk a few brass connectors at a time in a baby-food or similar glass jar full of Naval Jelly. Soak them for at least 10-15 minutes.

3) Vigorously rinse in warm water to remove all of the naval jelly. If you can't get all the Naval Jelly out, shoot it with some brake cleaner.

4) Spray with WD-40 to displace the water.

5) Spray with brake cleaner.

6) Coat with dielectric Silicone compound before re-assembly.
Click to expand...

agree with all except...............Once the crimps are clean I would flow solder into them (but then that is just me:o)
 
In Canada and I assume the states there is a product called CLR. Thats it a light acid that works for cleaning contacts. Just dip them in some of the product for 20 seconds rinse with break clean or contact cleaner to remove the residue. Safe for plastic as well. You can just repeat as needed just dont keep it dipped for to long
 
It was a while ago when i used it for this. Well crap looks like there is no effective de-oxidising products avalible in canada anymore. I need to come up with a new plan for my harnes cleaning
 
Clr

Clr

Use CLR, stuff is cheap, easy to find and not too nasty.
Use it 100% strength, and use a small soft brush, just takes a few minutes.
Rinse well with water. Let it dry in the sun.
Then use Flux & Solder and flow the crimp.
P1110894.jpg

Crimp the pinchers a little, then Spritz with WD40, good to go.
This should last a while, unless you ride in the rain and/or store bike in a bad location, in which case you'll need Clean/Pinch/Spritz more often.
 
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Wizard said:
Use CLR, stuff is cheap, easy to find and not too nasty.
Use it 100% strength, and use a small soft brush, just takes a few minutes.
Rinse well with water. Let it dry in the sun.
Then use Flux & Solder and flow the crimp.
P1110894.jpg

Crimp the pinchers a little, then Spritz with WD40, good to go.
This should last a while, unless you ride in the rain and/or store bike in a bad location, in which case you'll need to do this more often.
Click to expand...

Those are pretty :dancing: Nice solder work as well
 
I've used something similar to CLR to remove rust, called The Works. I get it for $1 down the hill at the Dollar General store. May just have to try it for this.
 
WOW that looks great, wish I knew that last year, I did it the hard way.....
 
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