Keep Getting Wrinkles. Help Appreciated.

[John Boy]

* With a clean mold & fluxed melt, heat both to a temperature so with a 5 second pour in each cavity ... the sprue puddle frosts in 5 to 8 seconds. Then cut with sprue plate
That's all there is to casting perfect bullets

[Traffer]

* with a clean mold & fluxed melt, heat both to a temperature so with a 5 second pour in each cavity ... The sprue puddle frosts in 5 to 8 seconds. Then cut with sprue plate
that's all there is to casting perfect bullets

^^^what he said^^^

[trapper9260]

It sounds to me that the mold was not smoke like stated and also turn the heat on the pot as high as you can and then cast and when the boolits start to frost start to turn down the heat. You want to get the alloy and mold up to temp .I have some molds that did the same and I turn up the heat on the pot and the problem went away also each mold have its own to heat.

[Burnt Fingers]

When I get a new aluminum mold I use these steps.

1. Clean it with a toothbrush, hot water and Dawn. Dry the mold off.

2. Heat cycle the mold three times in the oven set to 375. This is a full heat/cool cycle. I run 45 minutes of heat.

3. Now to start casting. Preheat the mold and smoke the cavities.


Using those steps most new aluminum molds will start casting good boolits within the first few pours. I also run my PID controlled pot a bit warmer than most. 775.

[fredj338]

* With a clean mold & fluxed melt, heat both to a temperature so with a 5 second pour in each cavity ... the sprue puddle frosts in 5 to 8 seconds. Then cut with sprue plate
That's all there is to casting perfect bullets

Well not totally true with some molds. I just got a new 6cav Lee mold from a friend. Cleaned it, heated it on a hot plate, it took about 100 bullets, what 15-16 pours, to get good fill-out in all cavs. I Think most molds need some seasoning to get 100% good bullets.