SHELF LIFE: Up to 24 months.
PACKAGING AND STORAGE: This product is packaged in 50 lb. drums. M-640 is also available in 5 lb. (2.3 kg) boxes, 100 lb. (45.4 kg) drums, and bulk. Store in a sealed container in a dry warehouse, avoiding direct exposure to sunlight, with temperatures not exceeding 150 degrees Fahrenheit (66 degrees Celsius).
UNITED STATES SHIPPING CLASSIFICATION: Hazardous.
NOTE: This product classified as hazardous for shipment via UPS and is subject to a HAZMAT fee for ground shipment and for air shipment. These fees are NOT calculated at checkout and will be charged separately. A Customer Service representative will contact you with details at time of shipment.