BLS® 123 is a liquid hindered amine light stabilizer (HALS) that provides outstanding light stability to many industrial and automotive coatings. This product is based on an amino-ether functionality and has inherently low basicity. This low basicity prevents interaction with acidic paint ingredients such as catalysts. The liquid form also allows for outstanding compatibility with a wide variety of coating systems, including waterborne and solvent-based coatings. BLS® 123 is also effective for the stabilization of plastics, including flexible and rigid PVC compounds, polypropylene and TPO for automotive applications, thermoplastic elastomers, polyvinyl butyral, unsaturated polyesters, and acrylics.

Applications: BLS® 123 is highly effective in coating applications including automotive and industrial coatings, decorative paints, and wood stains or varnishes. It is suitable for use in both water-based and solvent-based applications. Its low basicity makes it ideal for use in coatings that cure with an acid catalyst. Combinations with UV absorbers offer outstanding protection against cracking, gloss reduction, and chalking resulting from UV exposure and outdoor weathering.

BLS® 123 is also appropriate for use in plastic applications, especially in cases where conventional, strongly basic HALS can produce undesired interactions. Examples include flexible and rigid PVC compounds, automotive parts that are to be coated with acid-cured paints, and plastics containing halogenated flame-retardants. BL123 is also effective for the stabilization of other polymers, including polyvinyl butyral, unsaturated polyesters, and acrylics.

Advantages

• Extends the lifetime of coatings by preventing the cracking and loss of gloss during outdoor weathering resulting from UV exposure

• Low basicity makes BLS® 123 less interacting with acid catalyzed coating systems, acid-sensitive polymers (i.e. PVC), and halogenated flame retardants than conventional HALS

• Excellent solubility in and compatibility with a wide range of coating solvents

• Compatible with water-based coating systems

• Synergistic performance with other light stabilizers (UV absorbers, others)