Electrolube Potting Compound, Encapsulating, Polyurethane Resin, Black, 25Kg's

UR5604 is a two-part, high performance polyurethane especially formulated for potting and encapsulating. It is ideal as a general purpose resin also offering UL approval. #Features & Benefits General purpose polyurethane resin; ideal for a wide variety of challenging environments UL approved to UL94 V-0; high level of flame retardancy Low mixed system viscosity; ensures quick and efficient potting processes Excellent adhesion to a wide variety of substrates RoHS Compliant (2015/863/EU): Yes UL Approval: UL94 V-0 (File: E100107) #Specifications Package Size: 25Kg's Typical Properties Liquid Properties: Base Material Polyurethane Density Part A - Resin (g/ml) 1.62 Density Part B - Hardener (g/ml) 1.21 Part A Viscosity (mPa s @ 23ºC) 20000 Part B Viscosity (mPa s @ 23ºC) 50 Mixed System Viscosity (mPa s @ 23ºC) 2000 Mix Ratio (Weight) 5.21:1 Mix Ratio (Volume) 3.88:1 Usable Life (20°C) 40 mins Gel Time (23°C) 90 mins Cure Time (23 °C) 24 hours Cure Time (60 °C) 3 hours Colour Part A - Resin Black Colour Part B - Hardener Brown Storage Conditions: Dry Conditions: Above 15ºC, Below 35ºC Shelf Life: 12 months Exotherm (Measured on 100ml sample in a cylinder of diameter 49.4mm @ 23ºC): < 35ºC Shrinkage < 1% Cured System: Thermal Conductivity (W/m.K) 0.45 Cured Density (g/ml) 1.54 Temperature Range (°C) -40 to +130 Max Temperature Range (Short Term (°C)/30 mins) (Application and Geometry Dependent): +155 Weight Loss after 600 Hours @ 155ºC: 7% Dielectric Strength (kV/mm): 18 Volume Resistivity (ohm-cm): 10-14 Shore Hardness (@ 23ºC): A75/D25 (@ -77ºC): D80 (@ -60ºC): D80 Hardness after 600 Hours @ 155ºC A92 Colour (Mixed System) Black Flame Retardancy Yes Loss Tangent @ 50 Hz 0.015 Permittivity @ 50 Hz 4.90 Comparative Tracking Index >600 Volts Water Absorption (9.7mm thick disk, 51mm diameter) 10 days @ 20ºC / 1 hour @ 100ºC: <0.5% / <1% Elongation At Break: Not Measured