Extremely pure with most having less than reportable levels of crystalline silica (less than 0.1%).
Excellent heat aging and improved polymer stability.
Also designed for the paint and caulk industrie.
Designed for paint industry and selected for low absoption oil.
Designed for the paper undustry.
Also designed for the ruuber industrie where high surface area and reinforcement are necessar.
Also available with a coupling agent surface treatment and in pelletized form.