The manufacturing process for Saffil Fibres involves collection of the as-spun gel fibre and passing it through a series of heat treatment stages to develop the crystalline microstructure. The presence of a small amount of silica (3 to 4 percent) is effective in controlling crystal growth, allowing the gradual removal of porosity to optimise thermal mechanical properties. The flexibility of the process enables various grades to be produced, each one tailored to meet the specific needs of the application.
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