Elastic epoxy modified unsaturated polyester putty can be used to add vinyl resin and adding flexible epoxy ester resin and improvement method of unsaturated polyester elastic.
弹性环氧改性不饱和聚酯腻子可采用添加乙烯基树脂以及添加柔性环氧酯树脂等方法改进不饱和聚酯的弹性。
Downside to vinyl is that it becomes brittle in cold weather, losing much of its otherwise flexible qualities.
至乙烯缺点是，它在寒冷的天气变得脆弱，失去了灵活的素质，否则很多。
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