ULTRASIL® 5000 GR by Evonik is synthetically produced amorphous silicon dioxide-based reinforcing filler. It is highly dispersible with a specific surface area of approximately 120 m2/g. Provides... view more

ULTRASIL® 7000 GR by Evonik is synthetically produced amorphous silicon dioxide. Acts as a reinforcing filler. It is easily dispersible, imparts high abrasion resistance combined with excellent rolling... view more