Anyone tried HBN?

[jaysouth]

I add a 9mm case full of Hex boron nitride powder to an ounce of Kroil. I get a difficult aluminum mold up to casting temp and apply the kroil tothe cavities with a Q-tip then cool. I repeat this two or three times and the mold starts releasing bullets like they were spring loaded.

After several hundred bullets, i repeat treatment. It has given new life to old molds which were sticky in the past.

I have not yet tried this on Iron molds.

Careful handling HBN, particles are smaller than pores in your skin.

[swheeler]

I've been adding it to PC paint

[Burnt Fingers]

If I have a balky mold of any material I find a light smoking with a BBQ lighter solves the problem.

[gwpercle]

I have been using Liquid Wrench Dry Lube , L512 - 4 oz. bottle of the liquid , apply with a Q-Tip,
$2.99 at local auto parts store...lifetime supply.
I use it just like you do and boolits jump out the once balky mould .
After a feww treatments the mould doesn't balk any more .
Has got to be cheaper than HBN + Kroil and it can't work any better .
Gary

[jaysouth]

I have been using Liquid Wrench Dry Lube , L512 - 4 oz. bottle of the liquid , apply with a Q-Tip,
$2.99 at local auto parts store...lifetime supply.
I use it just like you do and boolits jump out the once balky mould .
After a feww treatments the mould doesn't balk any more .
Has got to be cheaper than HBN + Kroil and it can't work any better .
Gary

Thanks, Kroil and HBN are not cheap

[GhostHawk]

gwpercle nailed it post #4.

Bought a single 4 oz bottle 4 years ago. 3 drops on a q-tip will do a lee 6 cavity mold and sprue plate.

Lasts a LONG time. But when they start sticking the mold gets treated again when it is cool.

The liquid evaporates long before the mold ever comes up to temp. Does a good job of cleaning, removing old smoke, etc.
Does not migrate at all. Boolits "rain" out with a single light tap or a shake.

Toughest of them all was my lee 7/6ths oz 12 ga slug with the drive key. That drive key did not want to release.
I was on the road to beating my mold to pieces when I discovered this. The first 2 or 3 may require a healthy tap. The rest come easy.

It is so easy, so simple, and so cheap I see no reason to try anything else. YMMV

[cabezaverde]

I have been using Liquid Wrench Dry Lube , L512 - 4 oz. bottle of the liquid , apply with a Q-Tip,
$2.99 at local auto parts store...lifetime supply.
I use it just like you do and boolits jump out the once balky mould .
After a feww treatments the mould doesn't balk any more .
Has got to be cheaper than HBN + Kroil and it can't work any better .
Gary

Is the mold hot when you apply it?

[GhostHawk]

Nope, I apply to cold mold. Q-tip goes into each cavity, runs the vent lines by the time I am on cavity 2 or 3 you can no longer tell cavity 1 was wet 10 seconds ago. This stuff evaporates on room temp metal but leaves a dry film behind.

[jaysouth]

I've been adding it to PC paint


So, you are using after the bullet has been cast. Does adding it to PC powder give you more velocity?

[gwpercle]

Is the mold hot when you apply it?

I usually apply to a cool mould . The dry lube is alcohol based and will evaporate quickly on a hot mould . Now before storing a cool mould I give all the surfaces a coat , even the sprue plate surfaces . No rust has ever developed and when you want to cast ...the mould is ready to go .
Gary