we have very huge output approximate 100mt/ year
the production facility are inspected and approved by the us fda.
we can support,
stable supply, stable quality
logistic support ,warehouse in new jersey and europe
situs audit firmamentum
prompt response within 24 hours
uv-326 is a benzotriazole type ultraviolet light absorber, impacting good light stability for plastics and other organic polymers. uv-326 is especially suited for polyolefins ad cold cured polyesters. it protects polymers from uv radiation helping to preserve the original appearance and physical integrity, especially for polyolefins and polyester resins.
Other names: TINUVIN 326; EVERSORB 73
Appearance: Light yellow powder
Solubility: Clear solution, free from insoluble
Liquescens punctum, 137-141
Volatiles content:0.5% max
Ash content: 01 % max
Transmittance: 460nm 96.0% min
500nm 97.0% min
UV-326 can be dissolved in such organic solvent such as benzol, touene, phenyethene, etc. It can not be dissolved in water. It can be easily dissolved in som kinds of resin, and it is not sensitive to metal Ions. Under alkalinity, as low volatile, it is not turned int yellow, ca absorb the ultraviolet ray of 270-380nm wavelength effectively. When used with antioxidants, it has cooperative effect. With lower position, it is considered as the world's sagest plastic accretion.
ABS: 0.3-0.5 WT% based on polymer weight
PS: 0.2-0.3 WT% based on polymer weight
HIPS: 0.2-0.3WT% based on polymer weight
For high density polyethylene 0.2-0.3WT% based on polymer weight
For polyamine: 0.2-0.3WT% based on polymer weight
For polyester: 0.2-0.3WT% based on polymer weight