Light Stabilizers (HALS)
Light Stabilizer UV-3853
2,2,6,6-Tetramethyl-4-piperidinyl stearate (fatty acid ester mixture)
Fatty acid ester HALS — highly compatible in polyolefins without blooming, with excellent surface protection.
Product Description
UV-3853 is an ester-type hindered amine of 2,2,6,6-tetramethyl-4-piperidinol with C16–C18 fatty acids (mainly stearic); representative structure C27H53NO2, MW ≈ 424. Its waxy, low-melting form (mp ≈ 28 °C) makes dosing, mixing and dispersion easy at room temperature.
Thanks to the long aliphatic chain, UV-3853 offers high solubility and outstanding compatibility in polyolefins and styrenic resins: effective at low loadings with minimal blooming or migration — ideal for parts where surface quality and feel matter.
Typical applications span polyolefins, ABS, PU, coatings, adhesives and rubber, often blended with UV-770 or UV-622. Aolong UV-3853 has a fixed fatty-acid ester composition with QC-controlled batch consistency.
Key Features
- Fatty acid ester structure — high solubility in polyolefins, no blooming
- Waxy form — easy to dose and mix at room temperature
- Outstanding surface quality protection
- Blends well with UV-770 / UV-622
Applications
- Polyolefin injection molding and extrusion
- ABS and styrenic resins
- PU leather and coatings
- Adhesives and sealants
- Rubber articles
Specifications
| CAS No. | 167078-06-0 |
|---|---|
| Molecular Formula | C27H53NO2 |
| Molecular Weight | 423.72 (fatty-acid ester mixture) |
| Appearance | White waxy solid to pale yellow liquid |
| Molecular Weight (representative) | 423.7 |
| Melting Point | ≥ 28 °C |
| Density (20 °C) | 0.913 g/cm³ |
Packaging & Storage
25 kg carton box with PE liner or 180 kg steel drum. Store cool (below 25 °C recommended), dry and protected from light; shelf life 24 months in original sealed packaging.
Related Products
Light Stabilizers (HALS)
Light Stabilizer UV-292
Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate blend
Light Stabilizers (HALS)
Light Stabilizer UV-622
Oligomeric HALS (dimethyl succinate / 4-hydroxy-TEMPO polymer)
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