CONATHANE® EN-2523

About
CONATHANE EN-2523 is a two-part filled polyurethane casting system. It consists of two low viscosity liquids that have low vapor pressure and good handling properties at room temperature. CONATHANE EN-2523 can be cured at room or elevated temperatures without the formation of voids. Low exotherm, low stress build-up during cure, low shrinkage, and excellent electrical properties are other outstanding features of this system. CONATHANE EN-2523 is recommended for potting electrical and electronic devices that are subjected to conditions of extreme thermal shock and exposure to adverse environments. The low viscosity of the system permits thorough impregnation of electrical and electronic assemblies.&&

Product Description
SupplierCytec Industries
GenericPUR
Material StatusCommercial: Active
FeaturesExcellent Processability,Good Electrical Properties,Low Exotherm,Antimicrobial properties,Low contractility,Good thermal shock resistance,HB
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density 
1.24g/cm³
1.44g/cm³
1.46g/cm³
Water absorption rate 
25 ℃, 24 hours, in water0.14%
25℃,60days0.83%
7days0.45%
Solid content 
100%

Electrical performanceNominal valueUnitTest method
Surface resistivity 
1.5E+13ohms
1.3E+12ohms
1.1E+11ohms
Volume resistivity 
25 ℃3.4E+13ohms·cm
60 ℃3.7E+12ohms·cm
90 ℃3.4E+11ohms·cm
Dielectric strength 
1.59 mm25kV/mm
3.18 mm> 16kV/mm
Dielectric constant 
25 ℃,100 Hz4.60 
25 ℃,1 MHz3.50 
60 ℃,100 Hz6.70 
60 ℃,1 MHz3.70 
90 ℃,100 Hz7.70 
90 ℃,1 MHz4.10 
Dissipation factor 
25℃,100 Hz0.088 
25℃,1 kHz0.049 
25℃,1 MHz0.012 
60℃,100 Hz0.064 
60℃,1 kHz0.079 
60℃,1 MHz0.047 
90℃,100 Hz0.069 
90℃,1 kHz0.080 
90℃,1 MHz0.094 
Arc resistance130sec
insulation resistance 
25℃2.6E+12ohms
90℃6.8E+10ohms

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant levelHB UL 94

Thermosetting mixed viscosityNominal valueUnitTest method
25℃200cP
25℃5000cP
25℃2800cP
60℃400cP
stripping time
25℃480 to 600min

Supplementary informationNominal valueUnitTest method
Isocyanate Content30 to 32%
Cold and hot shock test -10 cycles, -65 ℃ to 130 ℃passes 
Work term -1 lb. mass 
25℃50.0min
60℃10.0min
Antifungal activityNon-nutrient 

Cured PropertiesNominal valueUnitTest method
Linear Shrinkage0.59%

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D50 
tensile strength11.0MPa
Tensile strain
fracture50%

THERMALNominal valueUnitTest method
Linear coefficient of thermal expansion
MD1.5E-41/℃
Thermal conductivity coefficient0.19W/m/K
thermal stability 
% Wt. Loss after 7 days @ 130℃0.19%
% Wt. Loss after 7 days @ 155℃0.52%
Thermosetting components 
resin按重量计算的混合比: 20 
Hardening method按重量计算的混合比: 100 

Notes
1. Typical properties: these are not to be construed as specifications.
2. Resin
3. Mix
4. Hardener
5. 90°C
6. 60°C
7. 25°C
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