EVONIK CORPORATION › AEROSIL® R 7200 AEROSIL® R 7200 $0.00 AEROSIL® R 7200 is a structure modified fumed silica after treated with methacryl-silane. Add To Cart Added! AEROSIL® R 7200 is a structure modified fumed silica after treated with methacryl-silane. You Might Also Like AEROSIL® 300 V AEROSIL® R 711 AEROSIL® RX 50 AEROSIL® R 8200 AEROSIL® 380