Characteristics
LTM is a low temperature powder with heavy silicone treatment, mainly used in low quality elements of low wattage loading or liquid heating elements. Elements stuffed with this material do not require annealing or sealing but with perfect moisture proof performance.
Chemical Analysis
MgO |
CaO |
Al2O2 |
Fe2O3 |
SiO2 |
93.0
|
2.5
|
0.9
|
0.8
|
2.5
|
Particle Distribution
Mesh |
+40 |
+60 |
+80 |
+140 |
+200 |
+325 |
-325 |
Dia(um) |
+425 |
+250 |
+180 |
+106 |
+75 |
+45 |
-45 |
Quantity(%) |
0-1 |
26-38 |
16-24 |
18-28 |
6-14 |
8-14 |
0-8 |
Tap Density
2.26-2.36g/cm3
Flow
Ford Cup No.3(
2.165mm-2.185mm):160-240s/100g
Ford Cup No.4(
3.97mm-4.01mm):34-40s/100g
Electrical Property

Testing condition(straight tube adjusting voltage)
Tube……copper coated iron
Reduction……
8.0mm>
6.6mm
Wire……0Cr25A15,
0.30mm
Helix……
2.3mm
Heated Length……30.0cm-32.0cm
Energized period ……15mins
Remark: :for user's reference , the chart here shows typical values of performance by this type of powder.
Packing
25Kg in a plastic woven bag. Special packing is available on requirements.
Security and Storage
Electrical Grade Magnesium Oxide is non-toxic, but with some dust. Masks and gloves are proposed to use during operation.
Electrical Grade Magnesium Oxide should be stored in dry places, and are suggested to be used out within 12 months after delivery,