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Grout Prism Capping Stand accepts specimens of masonry grout for compressive strength testing up to 3.5in (89mm) square. Vertical guides ensure samples are perpendicular when capping with the sulfur mortar compound. The capping plate and recess with beveled sides meet ASTM requirements for hardness and depth. Caps formed with Gilson Gray Iron 9000 or other sulfur mortar compounds will properly distribute loads for accurate strength results. Solid steel construction.
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