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Great Way For Removing Broken Point Out of Barrel
Hi Guys,

I broke a Storm Point in my PT Power 9five and was going to start the soak in vinegar when I continued to look around for something faster and I found that Alum will do it in about 6-8 hours or faster! 
 
The method described below is for removing a broken tap but works the same for broken tips.
 
 
“METHOD: - Using a non-ferrous saucepan (aluminium or glass/Pyrex is best) - add boiling water from a kettle and stri in the Alum until no more will dissolve (a saturated solution). - Dont use a steel saucepan.
Immerse the casting in the solution so that the broken tap is covered and leave on a low heat (just below boiling point - this is essential). Top up with boiling water periodically so that the broken tap hole is always immersed in the solution.
A stream of 'fizzy' bubbles will emerge from the hole. - It may take 2 or 3 hours of simmering to completely dissolve the remnants of the tap, but eventually the hole will be completely clear and shiny new.
There is no nasty odour or chemical fumes. The ferrous material is just slowly dissolved away !  - That's it.
The length of time for the chemical to work depends on the size of the cross-section of the item to be dissolved.
NOTES: This method only works where the broken bit is lodged in non-ferrous materials - ie. where the broken tap is in brass, bronze, gun metal, aluminium.
The solution must be kept at just below boiling point - just a few bubbles rising and the surface of the solution gently seething.
It will remove broken taps, drill bits, reamers. The bigger the size, the longer it takes - be patient.
This method will only work on iron/steel based broken tool tips - not tungsten carbide etc
If you try using a stainless steel saucepan - the Alum will try dissolving that!”
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Interesting.
How much Alum per cup of water?
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In the Philippines, we use alum (tawas) as deodorant. It doesn't make our armpits dark that's why it's the most preferred item.

And now, it's an effective point dissolver. Thanks for sharing.
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(02-11-2016, 12:53 AM)majeek Wrote: In the Philippines, we use alum (tawas) as deodorant. It doesn't make our armpits dark that's why it's the most preferred item.

And now, it's an effective point dissolver. Thanks for sharing.

So if we see you with a dart barrel tucked in your armpit we'll know why

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Alum can also be used to stop shaving cuts. I'm assuming the Alum used to dissolve points can be bought in bulk powder?
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Any apparent defects to dart? Still looks the same?
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(02-11-2016, 12:31 AM)Regulatori Wrote: Interesting.
How much Alum per cup of water?

I used 6Tsb to 1 cup of water and that it. 

The trick is to keep the solution with the dart in it hot and it will continue to bubble away!
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(02-11-2016, 01:04 AM)Leaky Wrote: Any apparent defects to dart?  Still looks the same?

Still looks the same. 

The Alum reacts with the steel (ferrous) and leaves the tungsten (non-ferrous) alone.
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(02-11-2016, 01:01 AM)SlingBlade Wrote: Alum can also be used to stop shaving cuts. I'm assuming the Alum used to dissolve points can be bought in bulk powder?

I'm sure you can on Amazon.

I got mine at the grocery store in the spice section.
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(02-11-2016, 12:54 AM)Banz Wrote:
(02-11-2016, 12:53 AM)majeek Wrote: In the Philippines, we use alum (tawas) as deodorant. It doesn't make our armpits dark that's why it's the most preferred item.

And now, it's an effective point dissolver. Thanks for sharing.

So if we see you with a dart barrel tucked in your armpit we'll know why

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(02-11-2016, 01:16 AM)CTsan Wrote:
(02-11-2016, 01:04 AM)Leaky Wrote: Any apparent defects to dart?  Still looks the same?

Still looks the same. 

The Alum reacts with the steel (ferrous) and leaves the tungsten (non-ferrous) alone.

Any chance that it might damage special barrel coatings?
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I could have used this a few months back when I tried to remove a point with vinegar and it took weeks before I called in the troops and Matt helped me at "Hand-on-Darts"

I guess in USA we can get Alum in the spice section as well, or so my wife guessed
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I use an alum block after shaving. Also as majeek says it's a great deodorant too. Just if you have a block be careful not to drop it or you'll unintentionally end up with hundreds of shards of the stuff!
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Great post, if ever I have my first ever point snap I will give it a try
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I will remember this should I (God forbid) ever break another point. The last point I broke was a Storm and took 8 weeks to dissolve in 6% vinegar. Vinegar works, but I nearly went insane during the wait. +1 for ya buddy.
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