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Cracking-resistant toughening curing agent, polysebacic anhydride (PSPA)
PSPA is an excellent cracking-resistant toughening curing agent with low melting point, low toxicity, moderate viscosity and good compatibility with a wide variety of epoxy resin. The cured substances have good thermal-state electrical property, mechanical property, especially, the excellent resistance to cold and heat impact. It is widely used in all kinds of household appliances, electromechanical, electronic and national defence industry, etc.
2. Main Ingredient: long carbon-chain aliphatic polycondensated anhydride of dibasic acid
Appearance light yellow transparent liquid
Anhydride Group, % ≥35
Carboxyl Content, % ≤6.00
Melting Point, °C 75-82
Viscosity, mpa.s (90°C) ≥300
Main Uses: It is mainly used as cracking-resistant toughening curing agent for insulating materials and cast materials of epoxy resin in household appliances, electromechanical, electronic and national defence industry, etc.
Packing, Storage and Transportation:
5Kg sealed plastic bag lined packaging. Stored in dry, ventilated, shady and cool place. Keep away from rain and sunlight during transportation. Save at least 12 months.

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