Page 1 Provisional TDS PE7501 Clear Digoutable Polyester Resin PE7501 is a clear amber, flexible encapsulation resin which due to its digoutable properties allows easy removal of cured material from broken or defective units. It uses an innovative blend of technologies to provide the performance afforded by polyurethane resins whilst removing the associated health hazards. Isocyanate free high performance, flexible resin which does not use hazardous isocyanates to cure Excellent hardness stability over a wide temperature range flexible at temperature extremes Low moisture sensitivity during and after cure exhibits excellent electrical properties Soft, re-enterable aids ease of rework RoHS-2 Compliant (2011/65/EU): Yes Approvals Typical Properties Colour Part A - Resin Pale Straw Liquid Properties: Colour Part B - Hardener Pale Straw Density Part A - Resin (g/ml) 0.95 Density Part B - Hardener (g/ml) 1.04 Part A Viscosity (mPa s 23C) 3500 Part B Viscosity (mPa s 23C) 5600 Mixed System Viscosity (mPa s 23C) 4300 Mixed System Viscosity (mPa s 40C) 2400 Mixed System Viscosity (mPa s 60C) 1900 Mix Ratio (Weight) 6.8:1 Mix Ratio (Volume) 7.45:1 Usable Life (20C) 50* Gel Time (23C) 110 minutes* Cure Time (23C) 48 hours* Cure Time (95 C) 60 minutes Storage Conditions (additional information below) Dry Conditions: Above 5C, Below 35C Shelf Life 12 months Exotherm o <40 C (Measured on 100ml sample cylinder of diameter 49.4mm 23C) <1% Shrinkage *Values based on a 30g sample full properties may be achieved after 7 days at ambient conditions, elevated temperatures will reduce these times.Page 2 Cured Density (g/ml) 0.96 Cured System: Temperature Range (C) -50 to 110 Max Temperature Range (Short Term (C)/30 Mins) 120 (Application and Geometry Dependent) Shore Hardness A16 Colour (Mixed System) Pale Straw Flame Retardance No Shore Hardness 100C A15 25C A16 -60C A45 Water Absorption (9.7mm thick disk, 51mm diameter) < 0.4% / <0.4% 10 days 20C / 1 hour 100C Elongation At Break Not measured Dielectric Strength (kV/mm) 12 12 Volume Resistivity (ohm-cm) 10 Dielectric Constant 50Hz 4.0 Mixing Procedures Resin Packs When in Resin pack form, the resin and hardener are mixed by removing the clip and moving the contents around inside the pack until thoroughly mixed. To remove the clip, remove both end caps, grip each end of the pack and pull apart gently. By using the removed clip, take special care to push unmixed material from the corners of the pack. Mixing normally takes from two to four minutes depending on the skill of the operator and the size of the pack. Both the resin and hardener are evacuated prior to packing so the system is ready for use immediately after mixing. The corner may be cut from the pack so that it may be used as a simple dispenser. 1 3 2 5 6 4