Bass Fishing Forum

General Bass Fishing Discussion => Tackle Box => Topic started by: No Excuses on April 22, 2019, 07:27:10 AM

Title: Pouring question...
Post by: No Excuses on April 22, 2019, 07:27:10 AM
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.

(https://i.imgur.com/GZoVt8j.jpg)
Title: Re: Pouring question...
Post by: SteelHorseCowboy on April 22, 2019, 07:47:02 AM
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.

Sent from my SM-G930U using Tapatalk

Title: Re: Pouring question...
Post by: DocIrv on April 22, 2019, 08:40:39 AM
Spray paint it with high gloss black engine paint
Title: Re: Pouring question...
Post by: No Excuses on April 22, 2019, 12:58:08 PM
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!!
Title: Re: Pouring question...
Post by: jonboy on April 22, 2019, 11:16:51 PM
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.
Title: Re: Pouring question...
Post by: jonboy on April 22, 2019, 11:24:03 PM
http://www.ultimatebass.com/bass-fishing-forum/index.php?topic=103635.msg1149949#msg1149949 (http://www.ultimatebass.com/bass-fishing-forum/index.php?topic=103635.msg1149949#msg1149949)

I wrote this up a few years ago, maybe useful
Title: Re: Pouring question...
Post by: Oldfart9999 on April 23, 2019, 06:02:49 AM
Quote from: jonboy on April 22, 2019, 11:24:03 PM
http://www.ultimatebass.com/bass-fishing-forum/index.php?topic=103635.msg1149949#msg1149949 (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!!! ~c~ ~c~ ~c~
Rodney