Nuclear Grade Resins

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Overview

Duvera supplies Thermax Tulsion® Nuclear Grade Resins, ultra-pure ion exchange resins specifically manufactured for nuclear power, electronic, and semiconductor-grade water polishing applications. These resins are designed to meet the most stringent purity, stability, and performance standards, ensuring removal of ionic and particulate contaminants to achieve sub-ppb levels. Tulsion® nuclear resins are engineered for minimal leachable organics, high mechanical integrity, and consistent conductivity performance, making them ideal for critical condensate polishing and ultrapure water systems.

Key Features

Tulsion® Nuclear Grade Resins are produced through a proprietary manufacturing process that ensures exceptional bead uniformity, low extractable ionic and organic impurities, and excellent radiation and thermal stability. Each batch undergoes rigorous washing, classification, and analytical testing to achieve ultra-low total organic carbon (TOC) and conductivity leakage. The resins exhibit outstanding mechanical strength and resistance to osmotic shock, maintaining high capacity and low pressure drop over prolonged operation. They are available in both cation (H⁺ form) and anion (OH⁻ form) types, designed for use in deep-bed and mixed-bed polishing units requiring 18+ megohm-cm water quality.

Applications

Nuclear grade resins are used in nuclear power plant condensate polishing, reactor coolant purification, semiconductor manufacturing, and microelectronics water polishing systems. They are also applied in ultrapure laboratory water systems, pharmaceutical grade water polishing, and research facilities requiring extremely low conductivity and silica content. Their high-purity characteristics ensure safe, stable, and reproducible performance in radiation-prone and high-temperature environments.

Specifications

Thermax Tulsion® Nuclear Grade Resins include cation and anion types such as T-46, T-48, A-33, and A-36, designed to meet ASTM and nuclear-grade specifications. The cation resins are based on sulfonated polystyrene–DVB matrices in H⁺ form, while the anion resins use quaternary ammonium functional groups in OH⁻ form. Typical moisture content ranges from 42–48%, with total exchange capacity of 1.8–2.0 meq/mL. The operating pH range is 1 to 14, with maximum service temperature up to 120°C. The resins exhibit conductivity leakage below 0.1 µS/cm and silica leakage under 0.02 ppm, ensuring consistent ultrapure water output. They are supplied in 25 L and 50 L HDPE bags in fully rinsed, ready-to-use condition.