Blade Restoration Tip

Excellent info there Ron! I wanted to add that phosphoric acid works as well, though less agressively, and all acids should be neutralized with an alkali and a thorough rinse with water. And don't pour water into acid to dilute it. "Do as you aughta, add acid to wata" is what I learned in chemistry 101.

Codger
 
Thanks Ron, good information...:thumbup: :thumbup:

You got it right Codger... I remember a little about acid from growing up in the 60tys (very little)...and, I'm pretty sure you don't pour the pool into the acid jug. :D

Bill
 
Thanks for the informative post, Ron.

I'll probably give the naval jelly a try. I'm not even sure where to get HCl around here (The Republic of California) since they quit selling it for drain cleaner; for all I know you need special credentials...

Dave
 
Dave,
Try an auto body supply store. I used to work at one and we sold Naval Jelly. I recently needed some for a rusty tang of a knife I am re-handling and the store I went to didn't have Naval Jelly but I bought something called Rust-Mort. It is supposed to stop the rust and even turn the existing rust into metal. It seems to have done a good job on the tang I used it on.

Dale
 
dlk said:
Thanks for the informative post, Ron.

I'll probably give the naval jelly a try. I'm not even sure where to get HCl around here (The Republic of California) since they quit selling it for drain cleaner; for all I know you need special credentials...

Dave
Muratic acid,used by masons,to clean stone,quarry tile,etc. is nothing more than a less concentrated form of HCl.Most places that sell cement and masonry tools should stock it.
Most of the drain cleaner sold here has Lye as the basic ingredient.I'v used it to clean traps before dyeing and waxing.It'll take off rust to some extent but I use it in a boiling bath.
I've often wondered what radiator cleaner has in it.Rust particles,from the cast iron engine block cavities,are a large part of what blocks the radiator passages.
Ron
 
Dale and Ron, Thanks again for the tips! The knowledge and resources on this forum are outstanding!

Dave
 
Dave,
You're welcome.
After having benefitted much from the information that the old-timers like Lt,Codger,Phil,Larry,Dale,Bill,etc. have shared,it's nice for an old fart to be able contribute something.:D
I did spell Muriatic incorrectly. You should be able to find it in plastic jugs.The last one I bought was a gallon and the price was $4.49.
 
I got a question. Let me 1st say I never took chemestry so I know little about what reactions will occur.
Ok the ?.
What will the Muriatic acid do to a carbon blade?
Is it like a super apple?
Thanks
Larry
 
lrv said:
I got a question. Let me 1st say I never took chemestry so I know little about what reactions will occur.
Ok the ?.
What will the Muriatic acid do to a carbon blade?
Is it like a super apple?
Thanks
Larry

Larry,
I make no claims to knowing anything about chemistry.
If you put a carbon blade in muriatic/hydrochloric acid + water mixture.,I'd expect to quickly see some bubbles starting to come to the the surface and the solution starting to turn a dark yellow.This is the result of the acid eating away the carbon steel.If you left the knife in there long enough,I don't think you would recognise it.
If I want to clean rust off steel,I usually attach a wire to the item,drop(gently) it into the mixture - count 1,2,3 and pull it out and flush it immediately with water from a hose.
If it needs another dip,okay.
It's also wise to neutralize any acid that might still be in crevices,niches,coil springs,etc by giving it a 5 minute soak in a bath made from water and baking soda.
Steel items that have had rust removed this way,will now rust quickly so they should be dried promptly and given a coat of oil.

Now ---- What's a super apple?:confused:

Ron
 
I think he is refering to the citric acid in an apple used to add patina to a blade. But then, I'm not from that part of the country.

Codger, ya'll :D
 
Don't you think it would be a good idea to also warn everyone to do this outside,watch your eyes, and don't breathe the vapors.This stuff will damage your lungs.That being said any pool supply house sells the best.It's 10%.You use it to control the P/H in a pool.Toby
 
relodr36 said:
Dave,
Hydrochloric acid,diluted with an equal part of water,will remove rust quickly.
I'd start with 2 parts H2O(water) and one part HCl (hydrochloric).It will work fast,so work carefully.
Naval Jelly (not from your bellybutton but,sold commercially) will also do it.
If you use a chemical,wear glasses,do it outside,and oil the blade after finishing as it will be very prone to rusting when cleaned with a chemical.
Ron

Toby,
You're correct in repeating the warnings,even though the above was included in post #20.
In this age of lack of personal responsibility and lawsuits-at-the drop-of-a-hat,I sometimes wonder how we old geezers survived during our misspent younger days!

First, we survived being born to mothers who smoked and/or drank while they
carried us.

Then after that trauma, our baby cribs and all of the interior walls of our house were covered with bright colored
lead-based paints.

We had no childproof lids on medicine bottles, doors or cabinets and when we
rode our bikes, we had no helmets, not to mention, the risks we took
hitchhiking.

As children, we would ride in cars with no seat belts or air bags.
Riding in the back of a pick-up was always a special treat.

We drank water from the garden hose or a spring and NOT from a bottle.

We shared one soft drink with four friends, from one bottle and NO ONE
actually died from this.

We ate cupcakes, white bread and real butter and drank soda pop with sugar in it, but
we weren't overweight because we played hard and had physical chores to do daily.

We would leave home in the morning and play all day, as long as we were backbefore it got dark.

We didn't have our own cell-phone so nobody was able to reach us all day. And we were O.K.


We did not have Playstations, Nintendo's, X-boxes, no video games at all, no
99 channels on cable, no video tape movies, no surround sound, no cell
phones, no personal computers, no Internet or Internet chat
rooms..........WE HAD FRIENDS and we went outside and found them!

We fell out of trees, got cut, broke bones and teeth and there were no
lawsuits from these accidents.

We were given BB guns for our 8th birthdays and we had BB gun battles all the time,with the rule that you weren't allowed to shoot at the face.

We were given a .22 rifle on our 12th birthday and used them responsibly or they would be taken away.

Those of us that had traplines to check on theway to school,carried our .22's and stored them in the cloakroom during class.

Every kid carried a knife - ALL THE TIME!

We even carried SWItCHBLADES until we found out they wouldn't take the abuse that a folder would.

We played with slingshots,blowguns,etc. and although we were told it would happen, we did not put out any eyes.

We rode bikes or walked to school if it was less than a couple miles away instead of having a school bus stop at every house to pick us up.

Our sports teams had tryouts and not everyone made the team. Those who didn't
had to learn to deal with disappointment.

The idea of a parent bailing us out if we broke the law was unheard of. They
actually sided with the law!

We had freedom, failure, success and responsibility, and we learned

HOW TO DEAL WITH IT ALL! :D

Ron
 
jcook said:
Have LB7 stamped D87230 does anyone know what in means?

Do a search on here - there was a lengthy discussion about LB 7 knives

it means your knife was made before they stopped stamping serial numbers on them
 
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