The Main Manufacturer(Helishi)of Pyromellitic Dianhydride/PMDA in China
Shandong Helishi Petrochemical Technology Development Co., Ltd.
Pyromellitic dianhydride (PMDA) is used to make polyimide film, polyimide resin, high
temperature resistance electric insulating paint, PVC plasticizer, synthetic resin crosslinking
agent and epoxyresin curing agent, also used to make phthalocyanine blue dye, food packaging
industry PET chain extension, etc.
Packaging & Shipping
1. PE bag
2. Aluminum foil bag
3. 25kg/ drum
4. 135kg/ drum
5. 450kg/ Jumbo bag
1.High quality with ISO certificate.
2.High purity with 99.8% min purity.
3.We have our own factory,can control delivery time strictly.
4.Our Helishi factory have 19 year's production experience.
5. Offer good service, customer is first for us.