Hudson Surface Technology 180 Old Tappan Rd. Bldg 1 Suite 3 , Old Tappan , New Jersey 07675 USA About Solutions products Companies Hudson Surface Technology Products HST - Model SiO2 - Magnetic Beads HST - Model SiO2 - Magnetic Beads 0 Share SiO2 surface functionalized magnetic beads. Customer reviews No reviews were found for HST - Model SiO2 - Magnetic Beads. Be the first to review! Add your review Publish your review Great! review successfully added!