Hi Tek Bonded Mold Release

[Petander]

In my 25 (only) casting years I have never needed a release agent,never smoked a mold etc. I like clean molds. I don't "whack" my molds either.

Some time ago I got a lemon brass mold that wouldn't like to open with the freshly poured bullets in cavities without whacking, casting strange looking "seams", bullets won't drop before a dozen heavy whacks. Sticking bad. I also had some sticking with another mold, it has a segmented HP pin. So I though why not to try something modern here? That brass mold was useless to me,I already bought a new faultless one. And a spare.

So I morse coded Australia. CQ,CQ.

Enter Hi Tek Release Agent. I mixed two grams of powder with 1/3 dl of acetone and painted my brass mold with it.

https://i.postimg.cc/xTps7Z8d/IMG-20220205-210350-433.jpg

I also painted the aluminum slug mold pin. Worked a treat here,too:

https://i.postimg.cc/prXZcQt8/IMG-20220205-201759-315.jpg

It makes your pretty brass mold really ugly. But when I begun casting ,the bullets started raining right away and even better, I then ran the brass mold really hot on purpose and got no smearing on mold top or under the sprue plate, nor tinning where and when it usually happens with this mold (I have three) and alloy. I could cast much faster than before without alternating several molds.

https://i.postimg.cc/660bVqNn/IMG-20220205-220246-458.jpg


The stuff cures and bonds from the heat when you start casting. Not pretty but not only did it make a useless mold completely nice and usable, it eliminated all spatter,smearing and tinning. Alloy just won't stick to the cured mold, not even when overheating. This is very big and good news to me who likes brass molds... got my first one 20 years ago. It is a smallish dual 470 grain 458 mold and is easy to overheat. It's obviously no good to run molds crazy hot but I really like this new margin to smearing.

This does not repair the sticking mold's faults,whatever they are, but now it drops great and the bullets are usable,not 100% perfect but 95. They shoot very good in my 470 NE after double PC, that's why I never sent the mold back in the first place. I just kept casting,hoping for the best session after session... I even bent the handles for the first time ever,by squeezing hard when whacking I guess.


Anyway,once cured,this coating is supposed to last for a long time. I couldn't measure any changes in bullets and even it looks like the air vents could get blocked,they are not. Fills great,no "whiskers",no tinning,no smearing... a great new tool in my casting toolbox.

Thank you Joe Ban & Hi Tek for another great product.

[Ausglock]

It's good stuff.
We use it on all our molds in the autocasters.
Works well on Lee OO Buckshot mold

[Bent Ramrod]

I accumulate a lot of moulds as Gun Show souvenirs, and make and try test castings on almost all of them. Encountering a balky and/or cranky one is simply a hazard of the occupation. I’d really hate to have some internet authority forbid me the use of candle soot, Midway Drop-Out, or whatever, in order to make them cast properly. I’d probably draw the line at sacrificing a goat before the casting session, but most other options are wide open AFAIC.

Of course, ideally, one should find and cure the “Root Causes” of the mould problems, or any mould problems. Or every mould problem. (We hear a lot about “Root Causes” these days.) By the same token, if you wake up on a workday morning with a cold, ideally, you should search out a permanent cure for the Common Cold. But most people don’t have the time or resources, so they pop a Claritin and go to work. Similarly, I generally am not interested, with the lead melted and everything ready to go (but the mould), in veering off into a science project to find out what’s up with the mould. I just want a pile of boolits.

Maybe my micrometers or technique with them are flawed, but I have never seen any castings that become undersized from such mould coating treatments, and, indeed, if they actually worked that way, I have a couple oversized moulds I’d be glad to doctor up to that result.

Glad you got your mould working, however you did so.

[Mal Paso]

So how can we get this stuff? My google foo failed.

[Petander]

So how can we get this stuff? My google foo failed.

Take a look at Hi Tek thread. I asked about US importers there. I got mine directly from Australia because we have no importers here in Finland.

https://castboolits.gunloads.com/showthread.php?204174-simple-Hi-Tek-coating/page728



EDIT:

https://hi-performancebulletcoatings.com/mold-release/

[gwpercle]

If you are in a pinch for quick and easy mould release use a Dry Spray On Lubricant ... one that has a Micro Teflon base with a carrier that evaporates . I've been using Liquid Wrench Dry Lube L512 .
It's not as long lasting as the Hi-Tek and will eventually dissapate during casting ... but for a quickie sticking fix ... it works . I spray some on/in cavities and use a Q-Tip to spread an even coat inside the cavities ... let dry and the boolits want to jump out when the mould is opened.
Available in the USA , I got my spray and liquid bottles from Pep Boys ... but any auto store will usually sell Liquid Wrench .
Not expensive and a good dry lube !
Gary

[Petander]

I found and posted the US importer link above. Here again:

https://hi-performancebulletcoatings.com/mold-release/

The no-smear and no-tinning properties impress me more than bullet release. I will treat all my (10+) brass molds, even though they have no sticking problems. Much less waiting time to cool a brass mold.

Please do not make this thread a collection of different anti-seize products.

[Sig]

Just placed an order. I have a couple of molds that have driven me nuts. Trusting a Finn as that is part of my heritage too.:drinks:

[DDriller]

I agree it is great stuff. Purchased mine from https://hi-performancebulletcoatings.com/mold-release/

[Petander]

I forgot to mention:

It looks like you don't need any other lube for the mold. I didn,'t. Just apply this to the aligning pins and holes,too. Sprue plate both sides of course, and the mold top.

It only takes a few drops to coat one mold.

[Walter Laich]

I ordered this also

thanks for info about it

[HI-TEK]

I ordered this also

thanks for info about it

Thank you for buying the release agent
How have you found results when using it?