Flake-Style sulfur capping compound for testing of concrete cylinders, concrete blocks, concrete prisms, and other special shapes for compressive strength.

• High compressive strength, exceeding ASTM C-617 standard!
  
• Superior bond strength to concrete, less rejects!
  
• No free-silica dust, it's safer to work with and it has less odor!
  
• Thin Flake style, it melts down faster and it's easier to work with!
  
• Low odor, the key is to lower the temperature!
  
• Consistent from batch to batch and it's reusable!
  
• Less costly and more accurate than rubber caps!
  
• Silica-filled.
  
• Melting range of 265° to 290°F (130° to 143°C)
  
• Compressive strength is 8000 to 9000 psi on 2" cube.