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PRODUCT DATA of DC 93500
MaterialDC 93500
Safety DatasheetDC93500 msds
Product DatasheetDC 93500
Product TypeTwo-part adhesive, potting, coating
Chemical CompositionSilicone
Name of ManufacturerDow Corning N.V.
Parc Industriel, Zone C, B-7180 Senette, Belgium
+32-64-88 80 00
+32-64-88 84 01
www.dowcorning.com
EXPERIENCE IN PRACTICE
Development StatusSpecial Commercial Product
Cost RangeVery High
Lot ReproducibilityGood
Equivalent DesignationsDC 93-500
Space ExperienceExtensive
PHYSICAL PROPERTIES
Specific Gravity1.08 @ 25°C
Viscosity8400 cP @ 25°C
Pot Life120 min @ 25°C
Shelf Life24 month
Data Quality: Manufacturer's data
ELECTRICAL PROPERTIES
Electrical Volume Resistivity6.9e12 ohm.m
Remark:ASTM D257
Loss Factor0.0011
Remark: ASTM D150 (100 Hz)
Dielectric Constant2.75
Remark: ASTM D150 (100 Hz)
Dielectric Strength14.8 kV/mm
Remark: ASTM D149
THERMAL PROPERTIES
Thermal Conductivity0.146 W/m.K
Data Quality: Manufacturer's data
Thermal Expansion Coefficient300 μstrain/°C
Data Quality: Manufacturer's data
Specific Heat0.867 J/g.K @ 0°C
Glass Transition Temperature-84 °C
Remark: TMA
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
FlammabilityPass (24.5% O2): tested as coating on FR4 PCB
Test:NASA NHB 8060-1B
Thermal CyclingPass
Test: ECSS-Q-70-04
Temperature Range(space)65°C to +200°C.
Test: Long Term
Outgassing StatusPass
Outgassing(Avg data)TML = 0.30%, RML =0.28%, CVCM = 0.03%
Test:ECSS-Q-70-02
Oxygen Index49.5
Test: ECSS-Q-70-21
SPECIAL RECOMMENDATIONS
Special RecommendationsRecommended cure: 7 days at room temperature. · DC 93500 can be filled with silica for thixotropy and with silver powder for electrical conductance. In these cases, a high temperature cure is necessary (24 hours @ 80°C). · Where high adhesion is required, use a primer: DC 1200 (red) or DC 92023 (clear). · Sensitive to contamination, particularly when cured in thin layers. · Three commercial versions are available: DC 93500 (thixotropic), DC 93500 (high viscosity) and DC 93500 (low viscosity).
Lessons LearnedLot reproducibility is excellent