The difference between light stabilizer 622 and 770_

There is a big difference in product performance between light stabilizers 622 and 770. The following is the BASF brand of light stabilizer Tinuvin 622 and light stabilizer Tinuvin 770DF Let’s compare the two products in terms of product models and parameters. Let’s take a look at the Differences between Light Stabilizer 622 and 770:

BASF Light Stabilizer Tinuvin 770DF Performance Product Introduction:

The German BASF light stabilizer Tinuvin 770DF is a hindered amine light stabilizer. Its efficacy is superior to UV light stabilizers and nickel-containing stabilizers. It is especially suitable for applications that require good light stability. Resistant plastics such as polypropylene, HDPE, EPDM, polystyrene, high-impact polystyrene, ABS, SAN, ASA, and polyurethane. German BASF light stabilizer Tinuvin 770DF is also very effective for polyamides and polyacetals.

Contrary to UV absorbers, the efficacy of BASF Light Stabilizer 770 is not affected by the thickness of the plastic, so it is particularly suitable for applications such as flat ribbons and films. BASF Light Stabilizer 770 also provides extremely high light stability for thick plastics.

BASF Light Stabilizer 770 can be added to the polymer using general methods. BASF Light Stabilizer 770 has good thermal stability and does not affect the color of the polymer because it does not absorb the visible spectrum. BASF light stabilizer 770 can be used together with a series of UV absorbers such as TinuvinP, Tinuvin327, Chimassorb81, etc. to produce a synergistic effect and provide good light stability for plastics.

To achieve the high efficacy of BASF Light Stabilizer 770, sufficient basic plastic stability is required to prevent damage to the plastic caused by thermo-oxidative degradation. Sulfur-containing stabilizers such as thiodipropionate and sulfur-containing phenolic antioxidants will affect the effect of BASF Light Stabilizer 770. If the finished product requires extremely high light stability and the influence of pigments is also important, it is recommended to conduct a small test first.

BASF light stabilizer Tinuvin 622 performance product introduction:

• Tinuvin 622 is an oligomeric, stereohindered amine light stabilizer. It is widely used in polyolefins, olefin copolymers such as EVA and polypropylene and elastomeric blends. In addition, Tinuvin 622 is effective on polyurethane, polyacetal, polyamide, especially nylon 11 and nylon 12, and polyester elastomers.

  For applications in pigment systems, Tinuvin 622 outperforms UV absorbers and nickel stabilizers. Tinuvin 622 can produce synergistic effects when mixed with other Tinuvin and Chimassorb UV absorber series. Since the average molecular weight of the oligomeric structure of Tinuvin 622 is approximately 3500, it is extremely suitable for applications requiring low volatility and low mobility. Moreover, Tinuvin 622 is an effective antioxidant, so it has long-term thermal stability for polyolefins and tackifying resins.

Differences in product parameters between light stabilizers 622 and 770:

Comparison of physical properties:

Comparison of product parameters: