Oribrite OB-1 (CAS 1533-45-5) Fluorescent brightening agent 393
- FBA 393 (OBA 393) has excellent thermal stability, high temperature resistance of 375-400 ℃. It is the best heat-resistant variety among all whitening agents. Therefore, it can be used for general high polymers, especially for high melting point engineering plastics such as polysulfone resins.
- The whiteness of FBA 393 is also relatively high, in general, the usage amount is 25-300mg/kg.
- Very Good compatibility with other additives in plastics.
- OBA 393 has extremely low toxicity and can be used for whitening plastic products for food packaging after strict control.
- FBA 393 is mainly used for brightening polyester resin and polyester fiber. It can also be used for whitening nylon, ABS, EVA, rigid PVC, polycarbonate, etc.
- Oribrite OB-1 has low price with high performance.

