material

Bethany Lane · January 2016

Hi! Does anyone know what 'Wacker Cenusil 830' is and what it is for?

Thanks! Beth

Travis Dunn · January 2016

It looks like it is a RTV silicone rubber used for mold making.

Stuart Mcconnel · January 2016

It appears to be a 2 part addition cure (platinum) silicone primarily used for mold making. Shore A hardness rating of 26 indicates it is quite "squidgy".

So it would typically be used to make a mold of a sculpt or other object, reinforced with a rigid outer shell (or "jacket")

This table shows that it's somewhere between the hardness of a rubber band and a pencil eraser (middle row)
http://www.smooth-on.com/pdf/durometer_with_logo.pdf
Here's some data on it
http://www.wacker.com/cms/en/products/product/product.jsp?product=13800

Mix ratio of the two parts is 1:1

Stu

Chris Ellerby · January 2016

A similar tin-cure alternative would be MoldMax 25 or MoldMax 30 from SmoothOn: http://www.smooth-on.com/Silicone-Rubber-an/c2_1113_1135/index.html

/Chris

Bethany Lane · February 2016

Thanks guys!

Beth

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