A release agent consisting of petroleum jelly ... [Eric] has also shown us how to make much larger silicone molds in the past. If you find yourself making lots of different-sized mold boxes ...

One of them being that you should always pour your silicone from one place and let it coat the piece being copied. Otherwise, there might be lines on the mold. Another tip is for DIY mold release ...

A new low-energy chemical recycling method using boron and gallium can convert common silicone waste into useful chlorosilanes with high efficiency and yield. The method offers a promising new ...