Orion Technical Data Sheet

Transcription

1 Polymer emulsion coating system for removing radioactive materials from contaminated surfaces and sub surfaces, including concrete, painted surfaces, steel, glass and wood construction materials. Description Orion can be applied after a contamination event to remove up to 80% of radioactive contamination from porous surfaces; it removes 99% on most nonporous surfaces. It has been tested and shown to be effective in the remediation of solubilized radionuclides, including Cs 137, Sr 90, and Co 60. Orion is designed to extract radioactive forms of contamination that may have penetrated into porous media such as concrete. Upon cure, the Orion coating mechanically and chemically traps contaminants and can be peeled to remove contamination in a solid waste form. Application and Storage Guidance RECOMMENDED DRY FILM THICKNESS: mils THEORETICAL SOLIDS CONTENT: 45% THEORETICAL COVERAGE PER GALLON: STORAGE CONDITIONS: SHELF LIFE: APPLICATION: 33 sq. ft. Store indoors (do not freeze) 10 months at 75F Brush, roller, trowel, airless spray

2 Page 2 of 5 Physical Properties of Cured Coating Value Units Test Method Tensile Strength 1000 psi ASTM D412 Peel Adhesion 5.0 Lbs/in Internal Elongation 1500 % ASTM D412 Performance Information ORION can be applied after a contamination event to remove up to 80% of radioactive contamination from porous surfaces; it removes 99% on most nonporous surfaces. It has been tested and shown to be very effective towards Cs 137, Sr 90, and Co 60. The following graphics describe how the Orion decontamination system works. First, chemistries in the wet coating shift the affinity of the contaminant from the concrete into solution where it becomes mobile. Next, the contaminants are concentrated at the surface of the concrete through the interaction of the drying process and hyper accumulating chemistries in the Orion coating. Finally, the cured Orion coating is ready to be peeled from the surface, taking along the radioactive contaminant locked inside.

3 Page 3 of 5 Decontamination factor and extraction performance is highly variable and depends heavily on the starting concentration of contaminants and the chemical form of said contaminants. Isotron does not report decontamination factors as a point of performance comparison, except where studies have been performed in a controlled setting. Orion has been extensively characterized in tests carried out by the U.S. Department of Energy and Department of Homeland Security. A recent study profiled the performance of Orion against other strippable coatings and found that Orion out performed by over 2 to almost 3 times. Strippable Coating Technology (Company) Days Following Contamination and Orientation a Pre Decon Cs 137 Activity μci b Post Decon Cs 137 Activity μci b Cs 137 %R b Stripcoat TLC Free (Bartlett Services Inc.) 7 H 56.8 ± ± ± V 53.5 ± ± ± Overall 55.2 ± ± ± H 53.2 ± ± ± V 55.6 ± ± ± Overall 54.4 ± ± ± 10.7 Orion SC (Isotron Corp.) 7 H 55.7 ± ± ± V 53.6 ± ± ± Overall 54.6 ± ± ± H 53.6 ± ± ± V 53.3 ± ± ± Overall 53.5 ± ± ± 9.0 a Orientation: H indicates horizontal surface, V indicates vertical surface, and Overall, the average of horizontal and vertical surfaces. b R = % reduction in radioactivity SOURCE:

4 Page 4 of 5 Coverage: The theoretical coverage rate of 1600 wet mils times square feet per mixed gallon of material. To determine gallons required for a given application, use the following relationship: Gals = ((Area in ft 2 )*(30 mils wet)*(# of coats)) 1600 For estimating purposes, adjust volume to include overspray and waste. A good rule of thumb is 33 ft 2 per gallon for each coat. Cure Rates: The cure rate of Orion is dependent upon temperature and humidity. Orion is a waterborne strippable coating. Surface Preparation: All surfaces to be coated should be clean (generally free of oil and grease) and dry. Coated carbon steel, stainless steel, aluminum, galvanized, coated concrete and fiberglass are acceptable surfaces. Please refer to the Application Procedures for Orion for further information. Equipment: Orion can be applied with airless spray equipment The spray hoses should be conductive and the spray machine should be grounded to an earth ground when spraying. Isotron Corporation can assist in specification of equipment to apply Orion. Application: Since the application of Orion requires mixing of three components in a precise sequence then applying same with airless spray equipment within a short pot life period, it is advisable that only those personnel properly skilled and trained apply this material. In actual spraying process, many standard techniques used in airless paint spraying work well with Orion. The proper spray tip should be selected for the job and the pressure of the pump should be adjusted to obtain an even spray pattern at the lowest pressure so as to prevent overspray. Once the initial coat has cured, successive coats may be applied to build the coating up to the desired thickness. Both coats are applied to a thickness of 30 mils wet. Equipment Cleaning: Spray pumps should be cleaned with a flushing solution after each application to prevent a buildup of material inside the unit. Flush out all coating remaining in the spray unit for the longer of minutes or until effluent stream is clear for two flush cycles. Remove all filters and nozzle and soak overnight in IsoClean Solution #50. Storage, Shelf Life & Disposal: Orion coatings are subject to skinning and deterioration when left uncovered or stored in poorly sealed containers. Material should always be kept covered and sealed when not in

5 Page 5 of 5 actual use. Store out of direct sunlight at temperature not exceeding 80F. The shelf life of factory sealed containers under these conditions is ten (10) months. Orion may freeze! Therefore, do not expose unprotected kits to freezing temperatures. During winter months, monitoring equipment is suggested to detect potential transit damage. To estimate the waste volume of Orion, figure on ½ the original volume, i.e. 10 gallons of Orion will produce 5 gallons of waste (including flushing solutions). Ventilation: Adequate ventilation should be maintained at all times. Ventilation should be of sufficient capacity to maintain a clear atmosphere within the work area during the coating operations. Forced air ventilation is required for all indoor applications. When working in tanks or closed vessels, fresh air breathing equipment is required. A NIOSH/MSHA chemical cartridge respirator may be used. Fire, Explosion Hazards: Do not expose to high heat (above 125F), sparks or open flame. The work area should be free of fires and spark producing equipment. A foam, carbon dioxide, or dry chemical fire extinguisher should be available in the work area. Eye / Skin Contact: If Orion should come in contact with the skin, wipe the affected area with a clean cotton cloth dampened with rubbing alcohol, followed by a thorough washing with soap and water. In case of eye contact, flush for 5 minutes with water followed by a dilute boric acid solution. Contact physician. FOR MORE INFORMATION: In United States, please contact Christina A. Lomasney Isotron Corporation 1443 N Northlake Way Seattle, WA christina.lomasney@isotron.net +1 (206) In Japan, please contact: Naofumi Tamai Battelle Japan Naofumi.tamai@battelle japan.com japan.com