Pouring question...

[No Excuses]

I made a 2 piece plaster of paris mold. Finally figured out how to get rid of the hollow spots by pouring extremely slow and by topping it off as it cools. My problem I am having is my worms are coming out looking all dull compared to my silicone open pour molds. I remember reading somewhere about sealing the molds. Is this what is causing it and what do I need to seal them with if it is?

These two were poured out of the same cup. Silicone on left POP on right.

[SteelHorseCowboy]

Sealing the POP mold should help. POP is very porous and you're most likely getting a mirror image of it's porous surface.

Disclaimer: I've never poured my own soft plastics, but I've experimented with casting metals. Finely machined bullet molds make a much nicer finished product than a sand and clay ingot mold for that same reason. And POP is very much like hardened clay.

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[DocIrv]

Spray paint it with high gloss black engine paint

[No Excuses]

Thanks guys! I was pretty sure I had read that somewhere, but as a newb doing this, much of it has turned into sensory overload!!

[jonboy]

My dad and I have made many Plaster molds and pored thousands of worms and jig trailers. We always sealed our molds with a thin coat of wood glue. We would paint it on with a small paint brush to work it into the small cracks and edges, worked great.

[jonboy]

http://www.ultimatebass.com/bass-fishing-forum/index.php?topic=103635.msg1149949#msg1149949

I wrote this up a few years ago, maybe useful

[Oldfart9999]

http://www.ultimatebass.com/bass-fishing-forum/index.php?topic=103635.msg1149949#msg1149949

I wrote this up a few years ago, maybe useful

Good tips!!!
Rodney