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Message Subject: Matte finish pouring plastic...why?

10KCasts

Posted 10/12/2015 6:19 PM (#788317)
Subject: Matte finish pouring plastic...why?

Posts: 9

I love this forum and it has inspired me to start building my own baits. I started with pouring plastic using Alumisol and the Alumilite silicone mold material. The first thing I need to troubleshoot is the sheen or finish of the bait. You can see the belly of the bait, formed in the open air portion of the mold, is a shiny black and the part formed in the mold is a matte black. Did I need to sand my original with a finer grit? I used a 150 grit.

Also, I'm getting bubble forming on the sides of the mold. I saw another thread and preheating the mold fixed this. It did not fix it for me. Any thoughts on this as well?

Edited by 10KCasts 10/12/2015 6:22 PM

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muskie tamer

Posted 10/13/2015 4:34 PM (#788434 - in reply to #788317)
Subject: Re: Matte finish pouring plastic...why?

Posts: 411

Location: Waconia,MN

I seal my original master and clear coat with gloss. Generally how ever your master looks when you make the mold is how it will turn out when you pour it.

Zinox

Posted 10/14/2015 12:09 PM (#788529 - in reply to #788317)
Subject: Re: Matte finish pouring plastic...why?

Posts: 1100

Muskie tamer, do you also clear coat silicone molds ? i do it with my POP molds but they are lot different.

muskie tamer

Posted 10/14/2015 8:30 PM (#788587 - in reply to #788317)
Subject: Re: Matte finish pouring plastic...why?

Posts: 411

Location: Waconia,MN

No, i don't spray anything in to my mold prior to casting other than a little mold release, with rubber i don't use anything i just make my master the way i want it to look. If your master isn't glossy your cast won't be either. 10kcasts you could try and heat the rubber with a torch or heart gun a little to re melt it to get the flat spots to be glossy.

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