LIGHT STABILIZER 123 (CAS:129757-67-1)

LIGHT STABILIZER 123

CAS No.[129757-67-1] Decanedioic acid, bis (2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl) ester

Light stabilizer 123 is a liquid hindered amine light stabilizer (HALS) based on an amino-ether  functionality.

Features & Benefits

- Efficient protection against gloss loss and cracking of coatings 

 - Low basicity aminoether (NOR) HALS, permits formulating in acid catalyzed coatings and  coatings containing acidic pigmentation 

 - Low volatility

Physical properties

Appearance clear, slightly yellow liquid    

 Density at 20°C 0.97 g/cm3  

Viscosity at 20°C 2,900 – 3,100 cps   

Miscibility at 20°C (g/100g solution):  

Most commonly used paint solvents > 50   

Water < 0.01

Applications  

Light stabilizer 123 has been developed especially for high solids, acid catalyzed automotive and industrial  coatings, such as two-coat metallic thermosetting acrylate systems or one-coat opaque thermosetting  acrylate and polyester coatings. Its low basicity prevents possible interactions with acidic paint  ingredients such as catalysts. Its efficiency provides significant improvement in coatings performance  by minimizing paint defects such as cracking and gloss reduction for clear coats as well as chalking  for pigmented paints.

Light stabilizer 123 is recommended for applications such as:  

• Automotive and industrial coatings 

 • Decorative paints and wood stains or varnishes

In addition, Light stabilizer 123 may be used in a variety of other binders and applications such as:  

• Alkyd/acrylic air drying automotive refinish paints  

• Alkyd oxidative drying paints and varnishes

• Two-pack non-isocyanate coating technologies

Light stabilizer123 also enables easy emulsification into waterborne systems. Its performance can be  significantly improved when used in combination with a UV absorber.

In automotive coatings, combinations of Light stabilizer 123 with the UV absorbers UV  384, UV 1130, UV 928, or UV  400 will significantly improve the weathering resistance and provide  superior protection against gloss reduction, cracking, color change, blistering, and de-lamination. The  light stabilizers may be added in two-coat applications to both the base and the clear coat.  

In wood coatings, combinations of Light stabilizer 123 with the UV absorbers UV  384 or UV 1130  have been found highly effective in air drying alkyd-based formulations. The light stabilizer blends can  be added to film forming as well as decorative penetrating stains.  

The amount of Light stabilizer 123 required for optimum performance should be determined in trials  covering a concentration range.

Packaging and Handling

Packaging: 25Kg/Drum 

Store the product in a cool, dry, well-ventilated area away from incompatible materials. Unless stated, proper storage will permit usage of the product for 12 months from the manufacture date. For additional handling and toxicological information, consult the Material Safety Data Sheet.