Tuesday, November 20, 2007

Soap Silicone Molds

You would think that by now we would have mastered the silicone molds but judging by today's results, have much yet to learn.

Nancy has tried the whole range gamut of temperatures. The really weird thing is that one soap can pop out almost in perfect condition while the one just next to it will be a problem.

Here are some pictures of the today's batch:

This shows the mold itself splitting.

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This shows the soap split in two after unmolding:

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Here is another that hasn't split the soap but the mold was the same as pictured above:

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The other problem we have, which is what we are encountering most is where the top part of the soap sticks to the inside of the mold or a small chunk actually sticks to the mold. Not the best pics but maybe you can see the problem:

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I think I'll ask soap guru Anne-Marie of Brambleberry.com to pop in and take a look. Maybe she can provide some wise words.

4 Comments:

At 7:58 PM, Blogger Anne-Marie said...

I'm not sure how "wise" my comments will be but I'll give it a go:

1. At Otion, we've all but abandoned silicone molds because the silicone seems to retard gel phase. We've noticed that our silicone molded soaps are dry and more prone to crumbling.

2. There is one silicone mold that we have (and we have used probably 20 different company's molds) that does not keep the soap from gelling. I suspect that changing the silicone that you are using may help with the sticking and crumbling.

3. What temps are you pouring at? Have you tried sodium lactate at a .5% addition yet? We have customers that try the SL when using our birchwood molds and they have experienced a much greater ease with unmolding and the shine of their soap.

Those are my thoughts for now but I'll keep the issues percolating in my brain for the next few weeks to see if anything else pops up.

Anne-Marie

 
At 8:04 AM, Blogger Sharon said...

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At 9:08 AM, Blogger Dawnaurora said...

I am sorry you are having problems with your silicone mold. I am a silicone mold maker,but make soy tarts and candles with them. I have not really worked with soaps. Although the times I have used soap in my molds I did not have any demolding problems.
I do know that the silicone will dry out my soy tarts and candles. I have started to using cooking spray and even coated the silicone mold with a layer of vaseline. Try those and see if it works.
The soap makers that have bought my molds before haven't addressed the problem to me about my molds.
I hope this helps you out.
Many Blessings,
Dawnaurora

 
At 9:10 AM, Blogger Dawnaurora said...

I am sorry you are having problems with your silicone mold. I am a silicone mold maker,but make soy tarts and candles with them. I have not really worked with soaps. Although the times I have used soap in my molds I did not have any demolding problems.
I do know that the silicone will dry out my soy tarts and candles. I have started to using cooking spray and even coated the silicone mold with a layer of vaseline. Try those and see if it works.
The soap makers that have bought my molds before haven't addressed the problem to me about my molds.
I hope this helps you out.
Many Blessings,
Dawnaurora

 

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