Value (OECD Guideline 403) Exposure time 4 h

SECTION 2: Hazards identification

According to Regulation 2012 OSHA Hazard Communication Standard; 29 CFR Part 1910.1200 Chronic Toxicity/Effects Repeated dose toxicity According to Regulation 2012 OSHA Hazard Communication Standard; 29 CFR Part 1910.1200 Assessment of repeated dose toxicity: Based on available Data, the classification criteria are not met.

2.1 Classification of the substance or mixture

Symptoms of Exposure Acute Toxicity The most important known symptoms and effects are described in the labelling (see section 2) and/or in section 11. 4 (Inhalation - mist) Skin Sensitization 1 Toxicity Data for Homopolymer of Hexamethylene Diisocyanate Specific Target Organ Toxicity – Single Exposure 3 (irritating to respiratory system) Specific target organ toxicity – repeated 2 (lungs) exposure (Inhalation) Toxicity Note Aquatic Acute Data is based on a similar product, including residual monomer. 3 appropriate low concentrations. Acute Toxicity Toxicity to fish 4 (Inhalation - mist) Skin Sensitization LC0 (96 h) >= 100 mg/l, Brachydanio rerio (OECD 203; ISO 7346; 92/69/EEC, C.1, static) 1 Specific Target Organ Toxicity – Single Exposure The product may hydrolyse. The test result may be partially due to degradation products. The product has low 3 (irritating to respiratory system) Specific target organ toxicity – repeated solubility in the test medium. An eluate has been tested. Limit concentration test only (LIMIT test). The details 2 (lungs) exposure (Inhalation) of the toxic effect relate to the nominal concentration. Aquatic Acute 3 Aquatic invertebrates

2.2 Label elements

Acute Oral Toxicity EC0 (48 h) >= 100 mg/l, Daphnia magna (Directive 92/69/EEC, C.2, static)

Hazard pictograms

LD50: > 5000 mg/kg (rat, female) (OECD Test Guideline 423) Toxicological studies at the product Acute Inhalation Toxicity LC50: 0.39 mg/1, 4 h (rat, female) (OECD Test Guideline 403) Toxicological studies of a comparable product. The test atmosphere generated in the ani1nal study is not representative of workplace environments, how the substance is placed on the 1narket, and how it can reasonably be expected to be used. Therefore the test result cannot be directly applied for the purpose of assessing hazard. Based on the weight of the evidence, a modified classification for acute inhalation toxicity is justified. The product may hydrolyse. The test result may be partially due to degradation products. The product has low solubility in the test medium. An eluate has been tested. Limit concentration test only (LIMIT test). The details of the toxic effect relate to the nominal concentration. Aquatic plants EL50 (72 h) > 100 mg/l (growth rate), Desmodesmus subspicatus (OECD Guideline 201, static) The product may hydrolyse. The test result may be partially due to degradation products. The product has low solubility in the test medium. An eluate has been tested. The details of the toxic effect relate to the nominal

Signal word

Danger Acute Dermal Toxicity LD50: > 2000 mg/kg (rat, male/female) (OECD Test Guideline 402) Studies of a comparable product. LD50: > 2000 mg/kg (rabbit, male/female) Studies of a comparable product. Safety Data Sheet Wink. Water Based Dry-Erase - GLOSS – Part B Isocyanate 1 | Page Page 6/9 Revision Date: 2019/02/14 Safety Data Sheet Wink. Water Based Dry-Erase - GLOSS – Part B Isocyanate 6 | Page Skin Irritation rabbit, OECD Test Guideline 404, slight irritant Toxicological studies at the product Eye Irritation 1. Identification rabbit, OECD Test Guideline 405, slight irritant Toxicological studies at the product Product identifier used on the label Sensitization Skin sensitization (local lymph node assay (LLNA)) : Causes sensitization. (mouse, OECD Test Guideline 429) Wink Part B Toxicological studies at the product Recommended use of the chemical and restriction on use: Respiratory sensitization: sensitizer Studies of a comparable product. DRY-ERASE COATING Repeated Dose Toxicity 90 d, Inhalant NOAEL 3,3, (rat, male/female, 6 hours a day, 5 days a week) * The “Recommended use” identified for this product is provided solely to comply with a Federal requirement and is not part of the seller's Toxicological studies of a co1nparable product. Evidence of damage to organs other than the organs of published specification. The terms of this Safety Data Sheet (SDS) do not create or infer any warranty, express or implied, including by incorporation into or reference in the seller's sales agreement. respiration was not found. Details of the supplier of the safety data sheet Mutagenicity Genetic Toxicity in Vitro: Company: Salmonellal microsome test (Ames test) No indication of mutagenic effects. (Metabolic Activation with/ ICP Building Solutions Group without) Toxicological studies at the product 2777 Eagandale Blvd Chromosome aberration test in vitro: negative (Chinese hamster V79 cell line, Metabolic Activation: Eagan, MN 55121 with/without) 651-332-5350 Toxicological studies of a comparable product. Point mutation in mammalian cells (HPRT test) negative (Metabolic Activation with/without) Toxicological Emergency telephone number studies of a comparable product. CHEMTREC: 1-800-424-9300 Danger concentration. Chronic toxicity to fish Study does not need to be conducted. Safety Data Sheet Wink. Water Based Dry-Erase - GLOSS – Part B Isocyanate 1 | Page Page 7/9 Revision Date: 2019/02/14 Safety Data Sheet Wink. Water Based Dry-Erase - GLOSS – Part B Isocyanate 7 | Page Chronic toxicity to aquatic invertebrates Study does not need to be conducted. Assessment of terrestrial toxicity 1. Identification Study does not need to be conducted. Product identifier used on the label Microorganisms/Effect on activated sludge Wink Part B Toxicity to microorganisms OECD Guideline 209 static Recommended use of the chemical and restriction on use: Activated sludge, domestic/EC20 (3 h): 134.5 mg/l The product may hydrolyse. The test result may be partially due to degradation products. The details of the DRY-ERASE COATING toxic effect relate to the nominal concentration. Persistence and degradability * The “Recommended use” identified for this product is provided solely to comply with a Federal requirement and is not part of the seller's published specification. The terms of this Safety Data Sheet (SDS) do not create or infer any warranty, express or implied, including by incorporation into or reference in the seller's sales agreement. Assessment biodegradation and elimination (H2O) Not readily biodegradable (by OECD criteria). The product is unstable in water. The elimination data also refer Details of the supplier of the safety data sheet to products of hydrolysis. Company: Elimination information ICP Building Solutions Group 1 % BOD of the ThOD (28 d) (OECD 301D; EEC 92/69, C.4-E) (aerobic, activated sludge, domestic, non- 2777 Eagandale Blvd adapted) Eagan, MN 55121 651-332-5350 Assessment of stability in water In contact with water the substance will hydrolyze rapidly. Emergency telephone number Information on Stability in Water (Hydrolysis) CHEMTREC: 1-800-424-9300 Study does not need to be conducted. Bioaccumulative Potential Other means of identification Chemical family: Hydrophilic Aliphatic Polyisocyanate based on Hexamethylene Diisocyanate Assessment bioaccumulation potential Does not significantly accumulate in organisms. 2. Hazards Identification Bioaccumulation potential According to Regulation 2012 OSHA Hazard Communication Standard; 29 CFR Part 1910.1200 Study scientifically not justified. Mobility in soil Classification of the product Acute Toxicity Assessment transport between environmental compartments (Inhalation - mist)

ECOLOGICAL INFORMATION

Other means of identification Chemical family: Hydrophilic Aliphatic Polyisocyanate based on Hexamethylene Diisocyanate Toxicity Aquatic toxicity Assessment of aquatic toxicity: According to Regulation 2012 OSHA Hazard Communication Standard; 29 CFR Part 1910.1200 There is a high probability that the product is not acutely harmful to aquatic organisms. The inhibition of the degradation activity of activated sludge is not anticipated when introduced to biological treatment plants in