So this is a little experiment I did months ago to try and remove a broken point from a barrel when it is too close to pull. During this experiment I found out it is a good way to remove PVD coating as well (only tried black so far but should work the same).
So I cut the point of my Dellar's, I wasn't liking them anyway. Close as I could get with a hack saw.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
You will need a heat proof container, some vinegar, salt, hot water and/or microwave, wires, gator clips, spare piece of steel or copper, and a battery or dc converter. (6 volts works best , 9 is fine too). Paper towels, q tips, and the likes.
Batteries are easier but die quickly.
Note: If you use a dc converter like a cut phone charger, run the positive to a small computer fan or something then the negative off the fan to the dart barrel. That will prevent shorts as it will use the current.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
Fill the container up with the following mixture. This is what I used for the size I had. 6oz Vinegar, 2oz water, about 4 table spoons salt. Then heat it, just hot not boiling. Connect the negative lead to the spare piece of metal and put it in the solution. Make sure the clip itself isn't in the water because it will dissolve in about 2 minutes. Connect the positive lead to the barrel. Put the barrel in the water, again leave the clip above the surface.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
This is when I realized that is will remove PVD coatings. As soon as I placed it in the solution it fizzed and all the black was gone. Literally a second. The steel takes a bit longer. The picture above you can see the rust color on top, that is the steel dissolving. The closer the barrel is to the metal the better, but do not let them touch.
After an hour and a change out for fresh solution I got impatient. Also my 1st 9 volt (not fresh) died I switched to a 6 volt lantern battery. Then another hour got impatient again and switched techniques to something I do to etch blades. Same process just a cotton swab or cloth soaked in solution connected to negative, barrel still on positive and rub the steel with it. Make sure the metals don't touch just the saturated fabric to the metal.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
After a total of three hours (I gave up as the lantern battery died, also not fresh) I dissolved about 5 mm of point. I feel if I was committed I could have done this all in 3 hours with 2 fresh batteries. But it works to dissolve points and apparently PVD coatings.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
Sorry I didn't take more pics, or finish the whole process but I can answer any questions if you got em.
Also you may notice the barrels look dirty, that is just residual rust from the water. However they do have a little hue , like burnt titanium I assume comes from the PVD heat treatment on the tungsten.
So I cut the point of my Dellar's, I wasn't liking them anyway. Close as I could get with a hack saw.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
You will need a heat proof container, some vinegar, salt, hot water and/or microwave, wires, gator clips, spare piece of steel or copper, and a battery or dc converter. (6 volts works best , 9 is fine too). Paper towels, q tips, and the likes.
Batteries are easier but die quickly.
Note: If you use a dc converter like a cut phone charger, run the positive to a small computer fan or something then the negative off the fan to the dart barrel. That will prevent shorts as it will use the current.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
Fill the container up with the following mixture. This is what I used for the size I had. 6oz Vinegar, 2oz water, about 4 table spoons salt. Then heat it, just hot not boiling. Connect the negative lead to the spare piece of metal and put it in the solution. Make sure the clip itself isn't in the water because it will dissolve in about 2 minutes. Connect the positive lead to the barrel. Put the barrel in the water, again leave the clip above the surface.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
This is when I realized that is will remove PVD coatings. As soon as I placed it in the solution it fizzed and all the black was gone. Literally a second. The steel takes a bit longer. The picture above you can see the rust color on top, that is the steel dissolving. The closer the barrel is to the metal the better, but do not let them touch.
After an hour and a change out for fresh solution I got impatient. Also my 1st 9 volt (not fresh) died I switched to a 6 volt lantern battery. Then another hour got impatient again and switched techniques to something I do to etch blades. Same process just a cotton swab or cloth soaked in solution connected to negative, barrel still on positive and rub the steel with it. Make sure the metals don't touch just the saturated fabric to the metal.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
After a total of three hours (I gave up as the lantern battery died, also not fresh) I dissolved about 5 mm of point. I feel if I was committed I could have done this all in 3 hours with 2 fresh batteries. But it works to dissolve points and apparently PVD coatings.
Guests cannot see images in the messages. Please register at the forum by clicking here to see images.
Sorry I didn't take more pics, or finish the whole process but I can answer any questions if you got em.
Also you may notice the barrels look dirty, that is just residual rust from the water. However they do have a little hue , like burnt titanium I assume comes from the PVD heat treatment on the tungsten.