The QUIKRETE Companies

Hazardous Ingredients

Silica, Portland cement Classification of the substance or mixture Carcinogen — Category 1A Skin Corrosion — Category 1B Skin Sensitization — Category 1B Specific Target Organ Toxicity Repeat Exposure — Category Specific Target Organ Toxicity: Single Exposure — Category 3 2.2a Signal word DANGER! 2.2b Hazard Statements May cause cancer through chronic inhalation ONE SECURITIES CENTRE, 3490 PIEDMONT ROAD, SUITE 1300, ATLANTA, GA 30305 SDS C3 TEL 404-634-9100 WWW,QUIKRETE.COM Page of I1 CEMENT & CONCRETE PRODUCTS" Causes severe skin burns and serious eye damage May cause an allergic skin reaction Causes damage to lungs through prolonged or repeated inhalation May cause respiratory irritation OOD 2.2¢ Pictograms 2.2d Precautionary statements Do not handle until all safety precautions have been read and understood. Wear impervious gloves, such as nitrile. Wear eye protection, and protective clothing. Do not eat, drink or smoke when using this product. Wash thoroughly after handling. Use only in a well-ventilated area. Do not breathe dust. If swallowed: Rinse mouth. Do NOT induce vomiting. ( If inhaled: Remove person to fresh air and keep comfortable for breathing. If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If on skin (or hair): Remove immediately all contaminated clothing and wash before re-use. Rinse skin or hair with water. If significant skin irritation or rash occurs: get medical advice or attention. Immediately seek medical advice or attention if symptoms are significant or persist. Store in a well-ventilated place. Keep container tightly closed. Dispose of contents/containers in accordance with all regulations.

Additional information

Precautions must be observed because burns occur with little warning -- little heat is sensed. 2.3a HNOC ~ Hazards not otherwise classified: Not applicable 2.3b Unknown Acute Toxicity: None 2.3C WHMIS Classification , Class D2B — Skin/Eye Irritant Class D2A — Chronic Toxic Effects — Carcinogen Class E — Corrosive Material / [_ONE SECURITIES CENTRE, 3490 PIEDMONT ROAD, SUITE 1300, ATLANTA, GA 30305 SDS C3 TEL 404-634-9100 WIWW.QUIKRETE.COm | Page 2 of 11 ( CEMENT & CONCRETE PRODUCTS" 2.3d Label Elements According To WHMIS

Signal word

DANGER! SECTION III - HAZARDOUS INGREDIENTS/IDENTITY INFORMATION Hazardous Components CAS No. % by Weight Sand, Silica, Quartz 14808-60-7 40-70* Portland Cement 65997 15 1 10-30* Fly Ash 68131-74-8 5-10* *The concentrations ranges are provided due to batch-to-batch variability. None of the constituents of this material are of unknown toxicity.

2.1 Classification of the substance or mixture

Carcinogen — Category 1A Skin Corrosion — Category 1B Skin Sensitization — Category 1B Specific Target Organ Toxicity Repeat Exposure — Category 1 Specific Target Organ Toxicity: Single Exposure — Category 3