Well.. I have been testing some new Dry-Tek coatings for HI-TEK Joe.
He now has a very nice Olive Drab green, a Nice Rose Red and hopefully tomorrow when I bake the second coat a nice shiny Deep Purple... woohoo... Smoke on the water
Well.. I have been testing some new Dry-Tek coatings for HI-TEK Joe.
He now has a very nice Olive Drab green, a Nice Rose Red and hopefully tomorrow when I bake the second coat a nice shiny Deep Purple... woohoo... Smoke on the water
Hooroo.
Regards, Trevor.
Australia
You can scrub out zinc as a problem for adhesion, I shot some 50 zinc contaminated cast projectiles in my 458 wm 2 days ago, the coating stood up well I got no leading at all and barrel was clean, only needed one patch run through it.
I also ran into the boolits with a white powder on them that appeared right after casting. I then fluxed this batch of alloy with root killer (copper sulfate) and it helped but then I had to add some pewter to the alloy to get it to fill out the molds well.
I did try cleaning some boolits that had the white powder on them with acetone but found it tedious and had to use a toothbrush to get it all off.
Could this be calcium from batteries? I was using mostly isotope container alloy at the time but who knows for sure what is in these.
I still tthin beetlemagnet should check his barrels by starting a boolit in the rifling in front of the chamber to see if it is cutting the coating. One of the barrels that was found defective was a Lone Wolf.
Has anyone weighed the liquid coated to see how much weight is added?
May the Peace of God Be With You!
and to ensure it, Keep Your Powder Dry!
NRA Endowment Member
Life Member 1957
NRA Member since 1954
NRA Training Counselor: Rifle . Pistol. Shotgun. Metallic Reloading. Shotshell Reloading, Personal Protection In the Home, Home Firearms Safety, Chief Range Safety Office
DrBill33castmine:"Where is John Gault?"
Thanks!!!! Lost all of my cast bullets to some person or persons unknown. Now casting again, and hope to do my first coating soon.
Aus: I have been using a self alloy of approximately Lyman #2. I range, per batch of 120 pounds, at 14.56 to 15.3. Have you found that with Hi-Tek a lower BHN will do?
May the Peace of God Be With You!
and to ensure it, Keep Your Powder Dry!
NRA Endowment Member
Life Member 1957
NRA Member since 1954
NRA Training Counselor: Rifle . Pistol. Shotgun. Metallic Reloading. Shotshell Reloading, Personal Protection In the Home, Home Firearms Safety, Chief Range Safety Office
DrBill33castmine:"Where is John Gault?"
G'day Doc.
10 to 12 range reclaim is what I use for 44 and 45
I use store bought 2.6.92 alloy for 38/357, 9mm, 40.
I did try some 8BHN for 45 with 2 coats and it did work ok. 10-12 is easier to come by for me. A bloke I know has the contract to clean out an indoor range about 3 hrs away.
Hooroo.
Regards, Trevor.
Australia
So is the Dry Tek available yet or still in the testing phase? If so, would someone be kind enough to bring me up to speed? Sorry, I'm a lurker who hasn't been lurking much lately. I'm new to casting and would like to start out with the Dry-Tek.
i think i figured out my issue.
seemed some of the 45s the coating was not adhering. i had a bunch in bins from multiple sessions of coating and casting. every 5th or 6th one didn't pass the smash test. weird but somehow i screwed up a batch along the way and mixed them all in.
agh well there goes 30 pounds of cast and coated back to the melting furnace. better luck next time. guess i'll pay more careful attention and make sure not to mix random batches together.
Always test one from the new batch before dumping it into the ready to load can.
I always test a bunch.
I think I had some bullets that were contaminated with bees wax or mold lube.
That would explain why it was only a few here and there mixed in. I guess I didn't catch any of them on the wipe and smash test.
I was very thorough today after that whole ordeal.
Can't wait to try the water dropped 40s to see if that stopped the leading.
What do you use for mold lube?
I only use the HI-TEK Super500+. Designed to not cause issues with the coating.
Hooroo.
Regards, Trevor.
Australia
I use bull plate exclusively for mould lube. I just keep it out of the cavities and have no issues...
I need to order some of the hi tek stuff.
I ran out of bull plate so tried a few things over the past couple of weeks.
Actually bees wax on the slider pins of a Cramer style mold works like a charm.
I always have bits and crumbs of the stuff all over my casting bench though. Not a good idea.
Last edited by Beetmagnet; 08-25-2014 at 10:09 AM.
So.. you are mixing 20gms of powder to 100mls of acetone?
Your blotchy coating suggests that you are not mixing correctly. You need to mix and shake for a few minutes. let sit for 1/2 hour and then shake again to ensure that the powder is fully dissolved.
It also looks like you are shaking the bullets too long. 15 to 20 seconds is all the shake shake shake that is needed. any more and the coated bullets look like yours.
The red copper you are using was tested by me before it got shipped to the USA. It worked perfectly with the ratios I stated above.
Forget spoons for measuring. Get a set of digi scales ($5 off ebay) that weigh in grains and grams. Get a measureing cup graduated in mls.
For the life of me.. I cannot understand why the US has not moved to the Metric system.. it is so easy to use.
Hooroo.
Regards, Trevor.
Australia
The coating looks porous and bubbly. Looks like you didn't let them dry long enough before baking.
That is good to hear Popper. DO you have a hardness tester? If so, have you tested a naked boolit and then a coated boolit? Did the hardness tester register the coating or punch right through and give you the alloy reading?
I have two digi scales that measure in grams, and two glass measuring jars that have ml measurement up to 200ml. The measurement was exactly 20 grams of powder to 100 ml acetone, so the mixture is not off. You're probably right about overshaking. I'll take your advice for sure. I'm hoping that Hi-Teks idea that they weren't properly dried is my problem, but I'll have to wait till Wednesday to fin d out.
Thanks for your input.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |