H-series is light or non-silicone treatment fused magnesium oxide. There are four different grades. H-series is used for manufacturing high temperature air heating elements. H-series can stand high temperature heat treatment, like 1050C annealing. H-series has no moisture-proof. Elements need sealing without delay.


M-series is moisture proof high temperature fused magnesium oxide (moderate or heavy silicone treatment). There are five different grades. M-series is used for manufacturing moderate-high temperature air heating elements. M-series is un-advisable to do high temperature heat treatment, such as 1050C annealing. M-series has very good moisture proof performance. We suggest simple sealing. Before sealing, we suggest dry process at 200-350C to elements.


L-seriesis heavy silicone treatment, moisture proof low temperature fused magnesium oxide. There are four different grades. L-series is used for manufacturing non-air heating elements ( such as copper, aluminum, bundy and stainless steel immersion heater, strong convection heater, contact heat conduction heater). L-series is un-advisable to do high temperature heat treatment, such as 1050C annealing. L-series has great moisture proof performance. We suggest simple sealing. Before sealing, we suggest dry process at 200-350C to elements.


JS-HPPSis moisture proof fused magnesium oxide. It is used for manufacturing hot plate. JS-HPPS has great moisture proof performance. After forming, we suggest drying process at 200-400C for 2-4 hours.

Magnesium oxide powders of JIASHUN company

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