UP 9909 is solvent polyurethane softer. It can improve flexibility and solvent resistance of the film when UP 9909 is added to nitrocellulose lacquer.

• UP 9909是溶剂型聚氨酯塑剂，少量的加入硝化纤维光油时，在没有任何副作用的情况下可以增加成膜的柔韧及抗老化性能，且不会应为迁移产生老化现象。