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Aremco

Aremco Ceramacast™ 576-N High Temperature Potting & Casting Alumina
Categories: Ceramic; Oxide; Aluminum Oxide; Potting/Casting Ceramic

Material Notes: Medium grain castable ceramic for large high temperature potting and tooling. Aremco offers a range of ceramic-based materials used for the assembly of high temperature, high power electrical devices as well as high temperature fixtures, molds and tooling.

Cure:
Step 1. Dry for 8 hours minimum at room temperature.
Step 2. Bake at 200 ºF for 2–4 hours.
Step 3. Final cure at 250 ºF for 3 hours.
Step 4. Final cure at 450 ºF for 30–60 minutes if using HLB-1 Hydrophobic Liquid Binder.

Vendors: Aremco’s Ceramacast casting and potting compounds represent the most expansive line of products based on aluminum oxide, aluminum nitride, magnesium oxide, silicon dioxide, silicon carbide, zirconium oxide, and zirconium silicate for applications to 3000°F (1760°C). Visit us today at Aremco.com or call 1 (845) 268-0039 to speak with an engineer.

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Physical PropertiesMetricEnglishComments
Bulk Density 1.73 g/cc0.0625 lb/in³Powder
Porosity <= 2.0 %<= 2.0 %
pH 2.0 - 3.02.0 - 3.0
Viscosity 9000 cP9000 cPMixed. Powder:liquid ratio is 100: 12-14
 
Mechanical PropertiesMetricEnglishComments
Compressive Strength 70.3 MPa10200 psi
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+9 ohm-cm1.00e+9 ohm-cm
Dielectric Strength 5.91 kV/mm150 kV/in
 
Thermal PropertiesMetricEnglishComments
CTE, linear 7.38 µm/m-°C
@Temperature 20.0 °C
4.10 µin/in-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 1650 °C3000 °F
Shrinkage <= 0.30 %
@Temperature 538 °C
<= 0.30 %
@Temperature 1000 °F
 
Processing PropertiesMetricEnglishComments
Dry Time >= 8 hour>= 8 hourAir dry
Cure Time 300 - 420 min5.00 - 7.00 hour2-4 hrs at 200°F; 3 hrs at 250°F
Pot Life 60 - 120 min60 - 120 min
Shelf Life 12.0 Month12.0 Month
 
Descriptive Properties
Acid ResistanceGoodattacked by HF
Alkali ResistanceGood
BinderMgO-P2O5
ColorWhite
Mix Ratio100:12-14powder:liquid
Moisture ResistanceGood

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CAREM45 / 586

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