The silicone manufacturing process sounds simple. Take silicon, methyl chloride, and a dash of catalyst. Heat. Add water. And out pops an infinite assortment of silicone fluids, elastomers, gels, and resins.
The hard part is obtaining good quality elemental silicon.
The next intricate part is synthesizing and distilling (separating out) the silane intermediates from which silicone molecules are built. That means that a huge mixture of different reaction products has to be purified to the highest degree to allow their further use for all the different high-quality products. But the real chemistry of silicone manufacturing lies in the hydrolysis and polymerization, where the silicone building blocks are produced and assembled into finished products.