1. Excellent process performance. This is the biggest advantage of unsaturated polyester resins. It can be cured at room temperature, molded under normal pressure, and has flexible process performance. It is especially suitable for large-scale and on-site manufacturing of FRP products.
2. The comprehensive performance of the resin after curing is good. The mechanical properties are slightly lower than epoxy resin, but better than phenolic resin. Corrosion resistance, electrical properties and flame retardancy can be met by selecting an appropriate grade of resin. The resin is light in color and can be made into a transparent product.
3. There are many varieties, wide adaptability and low price.
4. The disadvantage is that the shrinkage rate is large when curing, the storage period is short, styrene is contained, and irritating gas is present, and long-term contact is unfavorable to health.
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