Gilson HM-186 Concrete Capping Compound, Flake-Style


Price $51.98
Est Delivery in 2-3 weeks after ordering

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The Gray Iron 9000 is a new and improved sulfur mortar concrete capping compound that ensures even load distribution during concrete strength testing. Ultra-thin, low-odor flakes are carefully formulated from sulfur and mineral filler. Gray Iron melts quickly at 230°to 240°F (110° to 115°C), with a wide optimum pouring range of 265° to 290°F (129° to 143°C). Set time for this concrete capping compound is about one minute, and shrinkage is minimal. If accidental overheating occurs, the concrete capping compound remains usable after cooling, and solidified material can be re-melted with no loss of properties. Compressive strength exceeds 8,000psi at two hours for ASTM C617 tests of 2in cubes, and bond strength is 150psi or more. Strength and bond properties of capped specimens do not degrade over time, even when stored in humid conditions. Brows all of the bonded cylinder capping products as well as our concrete testing equipment to make sure you have everything you need. 

Concrete Capping Compound Features:

  • Reliable sulfur mortar capping compound offers faster melting times and lower optimum pour temperature
  • Ultra-thin flakes melt quickly at 230° to 240° F (110° to 115°C) with reduced odor
  • Compound is not damaged by overheating and can be re-melted with no loss of properties
  • ASTM C617 compliant

Material Safety Data Sheet

Concrete Capping Compound Meets Test Methods:

  • AASHTO T 231
  • ASTM C 287
  • ASTM C 617