| Number | Name | Grade | Features and uses |
| 1 | polyamic acid solution | SK-0910 | PMDA PI resin, manufacturing film, fiber, coating, enameled wire products etc.. |
| 2 | polyamic acid solution | SK-0920 | Ether anhydride type PI resin, water vapor resistance, used in the production of ductile film, coating, composite resin matrix. |
| 3 | polyamic acid solution | SK-0930 | PI resin, suitable for various coatings, high temperature adhesives, etc.. |
| 4 | polyamic acid solution | SK-0940 | Bisphenol A two anhydride type PI resin, used in the production of films, coatings and other products, is a good toughening modifier. |