REF-BOND MP2
Mono Magnesium Phosphate powder: MgH4(PO4)22H2O
Dry, water soluble, Mono-Magnesium Phosphate for use in, Fast Setting Cements, Investment casting, Gunning Mixes, and Fertilizers
Ref-Bond MP2 QD (MP2 QD) is used in refractory applications as well as specialty cementing. This material has been used commercially for decades in dental and cement applications. Typically Mono Magnesium Phosphate was dried driving off physical water and leaving the chemically bound water. Drying MP2 drives up the cost and makes it very hygroscopic. It was found that a more stable material could be produced by not driving off the physical water. This brought down the cost so that it could be considered for bulk refractory applications.
Typical Chemistry:
MgO 15.5%
P2O5 55%
LOI 25%