MagPro® is a high active magnesium oxide produced in the form of powder by carefully controlled indirect calcination of milled brucite mineral (magnesium hydroxide).
MagPro® is used as a thickening agent in the production of glass-reinforced SMC/BMC composites.
SMC/BMC composition is a mixture of various components: unsaturated polyester or polyacrylic resin, mineral fillers (chalk, flame-retardants), low profile agents, dyes and a thickening agent (chain extender). The thickening agent provides crosslinking and an increase in the viscosity of the composite.
Magnesium oxide for this application should have a high specific surface area and a stable particle size distribution.
The correct selection of thickening agent is extremely important in producing a high-quality composite without moulding flaws, cracks and undulations.
Two grades are available: MagPro®150 and MagPro®170. The right choice of the appropriate grade depends on the formulation and technological parameters.
Comparison with competitive products
Specific Surface Area value (efficiency)
Low content of chlorides impurity
Low content of sulfates impurity
Low content of iron impurity
Stable particle size distribution
Synthetic magnesium oxide
Calcined Magnesite (CCM)
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