Safety Data Sheet SprintRay Splint OSHA Hazard Communication Standard 29 CFR 1910.1200. Prepared to GHS Rev.04 Section 1. Product and Company Identification Product Identification: Photopolymer Resin Product Use: For use in SprintRay 3D printers: Pro, MoonRay S, MoonRay D Product Trade Name and/or synonyms: SprintRay Splint Company: SprintRay Inc., 3577 N Figueroa St, Los Angeles, CA 90065 Product Class: Mixture of methacrylic acid esters, photoinitiators, proprietary additive package For Emergencies: Call CHEMTREC 800.424.9300 Section 2. Hazard(s) Identification GHS Hazard Classification of the Substance or Mixture: Hazard Statement(s): H317 May cause an allergic skin reaction H320 Causes eye irritation H303 May be harmful if swallowed (uncured material only) H335 May cause respiratory irritation (uncured material only) Signal Word: Warning Signal Word: Danger Precautionary Statement(s): Precautionary Statement(s): P201 Obtain special instructions before use. P337+P313 If eye irritation persists: Get medical attention. P202 Do not handle until all safety precautions have been read and understood. P302+P352 IF ON SKIN: Wash with plenty of soap and water. P261 Avoid breathing dust or fume. (uncured material only) P333+P313 If skin irritation or rash occurs: Get medical attention. P264 Wash thoroughly after handling. P362 Take off contaminated clothing and wash before reuse. P272 Contaminated work clothing should not be allowed out of the workplace. P363 Wash contaminated clothing before reuse. P273 Avoid release to the environment. P308+P313 IF exposed or concerned: Get medical attention. P280 Wear protective gloves, protective clothing, eye protection and face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P501 Dispose of contents and container in accordance with local and national regulations. Description of any hazards not otherwise classified: N/A For a mixture, the percentage of total ingredient(s) of ingredient(s) with unknown acute toxicity: 2% Section 3. Composition/Information on Ingredients Chemical Name, Common Name and Synonyms: CAS # and other unique identifiers Acrylic Oligomers* *Denotes that the specific chemical identity and/or exact percentage (concentration) of composition has been withheld as a trade secret. Section 4. First-Aid Measures After inhalation: Remove from source of exposure into fresh air. Seek medical attention if any irritation develops. After skin contact: Wash skin with soap and water. Remove any contaminated clothing and shoes and clean before reuse. Seek medical attention if irritation develops. Information for Doctors: Treat symptoms conventionally after thorough decontamination. SprintRay Splint SDS - Photopolymer Resin For SprintRay 3D Printers After swallowing: First aid is unlikely to be required but if necessary, rinse mouth repeatedly with water, ensuring that the water is not swallowed. Seek medical attention. After eye contact: Hold eye open and rise continuously with a gentle stream of clean running water for at least 15 minutes. Seek medical attention if any irritation develops.

Section 5. Fire-Fighting Measures Suitable extinguishing agents: Chemical foam, carbon dioxide or dry chemical extinguishers. Special hazards arising from the substance or mixture: Formation of toxic, irritating gases is possible from the decomposition of the methacrylate resins. Heat can cause polymerization with rapid release of energy. Advice for firefighters: Wear full protective equipment (bunker gear) and a self-contained breathing apparatus. (SCBA). Water may not be effective in extinguishing a fire involving this product. Protective equipment: Wear full protective equipment (bunker gear)...

Section 10. Stability and Reactivity Reactivity: None known. Chemical Stability: Stable if handled and stored as directed. Thermal decomposition/Conditions to avoid: Avoid heat, light and sources of contamination. Hazardous decomposition products: Thermal decomposition may release acrid smoke or fumes, carbon and nitrogen oxides. Possibility of hazardous reactions/Conditions to avoid: Heat, light, sources of contamination or inhibitor depletion may cause spontaneous polymerization generating heat and pressure. Closed containers may rupture or explode during runaway polymerization. Incompatible...