The Trappsorb produced by Watch Water is 99.99% pure MgO + CaO free-flowing uniform beads. Trappsorb is a porous, amorphous form of Magnesium (MgO). Although it has the same chemical composition as granular products, is radically different to other MgO- based materials due to its unique outer surface and structure, it is composed of a unique manufacturing process giving it’s uniformity and Macroscope pores. As opposed to granular MgO, Trappsorb have larger pores with a wide range of diameters. Is certified by WQA to meet ANSI/NSF 61 standard.

MSDS ( Material Safety Data Sheet )
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