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Viscous Liquid Curing Agent Epoxy Resin For Sealed Embedded Poles
iscous liquid, premixed, hot-curing two component epoxy resin system for outdoor applications. Applicable for automatic pressure gelation process (APG).
| Properties | ||||||
Outdoor electrical insulation products for medium and high voltage applications such as 12-40.5kv insulators, embedded poles, etc.
| Application | ||||||
| Product Data | |||||||
| 8058A-Q is a system of modified cycloaliphatic epoxy resin premix. | 8058B-Q is a system of modified saturated structure carboxylic anhydride hardener premix. | ||||||
| Properties | Unit | Value | Properties | Unit | Value | ||
| Appearance | Visual | Viscous liquid | Appearance | Visual | Viscous liquid | ||
| Viscosity at 70℃ | mPa.s | 800-1600 | Viscosity at 70℃ | mPa.s | 1000-2000 | ||
| Density at 25℃ | g/cm3 | 1.7-1.8 | Density at 25℃ | g/cm3 | 1.7-1.8 | ||
| Vapour Pressure at 25℃ | Pa | ﹤0.01 | Vapour Pressure at 25℃ | Pa | About 0.5 | ||
| Flash point | ℃ | About 135 | Flash point | ℃ | About 140 | ||
| Epoxy resin 8058A-QA and hardener 8058B-Q can be processed by following conditions after fully mixed under vacuum conditions. | Process condition | ||||||
| Processing parameters | Automatic pressure gelation |
| Epoxy / hardener mixture temperature | 10-35℃/1-1.5 hours |
| Feeding process | Pressurized (0.5-5bar) |
| Mold temperature | 130-150℃ |
| Gelation time | 10-60mins |
| Post cure | 110-120℃×6-10 hours |
| Gelation time |
| Temperature | Gelation time |
| At 120℃ | 10-20mins |
| At 140℃ | 4-8mins |
| At 160℃ | 1.5-3mins |
Tested system: Epoxy resin 8058A-Q / Hardener 8058B-Q: 100/100; Cure conditions:140℃ × 1hour + 110℃ × 8 hours; Note: the following data are tested based on GB standard, and only for customers’ reference, Detailed properties should be tested by in accordance with customers’ actual conditions. | Mechanical and physical properties |
| Properties | Value | Properties | Value | ||
| Glass transition temperature (DSC) | 100-115℃ | Thermal conductivity | 0.8-0.9W / mk | ||
| Tensile strength | 60-85N / mm2 | Thermal decomposition | ＞320℃ | ||
| Flexural strength | 90-140N / mm2 | Water absorption (23℃×10days) | 0.10-0.20 % by wt. | ||
| Compressive strength | 130-180N / mm2 | Water absorption (100℃×60 mins) | 0.08-0.15 % by wt. | ||
| Impact strength | 8-16kJ / m2 | Surface resistivity | 1014Ω | ||
| Curing shrinkage | 0.9-1.1% | Volume resistivity | 1015Ω.cm | ||
| Flammability (4mm) | HB Class | Dielectric strength | 20-30 kV / mm | ||
| Loss factor | 0.02 |
| The components have to be stored in tightly sealed and dry original containers in an environment at 6~35℃;. Under these conditions, the shelf life will correspond to the expiration date stated on the label ( normally 12 months). After this date, the product may be reanalyzed to confirm if it validates yet. Partial emptied containers should be closed tightly immediately after use. | Storage |
| 8058A-Q 20 or 220 or 1200kg/drum, 8058B-Q 20 or 220 or 1200kg/drum; | Packing |
| If eyes are contaminated by epoxy resin, hardener or mixture for casting, the eyes should be treated and washed immediately by clean running water for 10 to 15 minutes. If necessary, the person shall be sent to hospital. If the skin is stained or splashed by the materials, it shall be wiped immediately and washed off by clean water. If the person feels very hurt or burn wounds, he or she shall be sent to hospital immediately. If the clothes are Contaminated, the people shall change the suits immediately. If the operator breathes in the vapour and feel bad, he or she shall be moved to outside. Any other doubt, please consult doctors or us for medical assistance. | First aid |
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Applications:
For medium and high voltage indoor transformer,electrical insulators, such as switches and electrical parts, etc
Processing methods:
Conventional vacuum self gravity casting
Process viscosity:
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