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Light stabilizers are a group of additives that have been developed to minimise or prevent the damage to plastics caused by exposure to the environmental parameters of light, heat and air. ADEKA-PALMAROLE offers a complete range of light stabilizers:

• Benzophenones
• Benzotriazoles
• Hindered Amine Light Stabilizers (HALS)

These light stabilizers provide protection from UV radiation by interfering with the physical and chemical processes of light-induced degradation according to different mechanisms. 

Hindered amines show excellent UV protection by scavenging free radicals generated by photo degradation. When to use HALS or other light stabilizers depends on the processing requirements and demands of the end user. In some cases, combinations of light stabilizers have shown superior performance.

In general terms, stabilizers containing sterically hinderd amines, HALS are very efficient at scavenging free radicals and thus prevent these species from reacting and causing degradation of polymer chains.

LA-402AF is a new very high performance light stabiliser based on a low migrating HALS in a synergistic blend. Particularly suitable for filled and pigmented polyolefins
ADK STAB LA-402XP and ADK STAB LA-402Si are highly efficient light stabilizers based on a synergistic HALS blend. Offered in either a PP masterbatch form or on a synthetic silica carrier, they allow easy blending with base resins.
ADK STAB LA-402Si is a light stabilizer concentrate (50% on silica) based on secondary low molecular weight HALS. Highly effective in filled and/or pigmented formulations. Particularly recommended for automotive PP interior and exterior parts
ADK STAB LA-52SC is a highly effective N-methylated HALS (hindered amine light stabilizer). In PP this light stabiliser shows a high level of bloom and fogging resistance.
ADK STAB LA-502 is a propriety light stabiliser taking advantage of advanced alkylated HALS technology to povide state-of-the-art protection in filled and pigmented formulations for interior automotive application.
ADK STAB LA-63P is an oligomeric, high molecular weight HALS (hindered amine light stabiliser) capable of protecting a variety of polymers.
PALMAROLE HALS 92 is a hindered amine light stablizer for use in polymers, coatings and adhesives.
PALMAROLE HALS 77 is a hindered amine light stabiliser (HALS) suitable for most polymers.
PALMAROLE HALS 62 is a light stabilizer based on an oligomeric polymer. 
PALMAROLE HALS 94 is an oligomeric, sterically hindered amine light stabiliser particularly useful for the protection of polymers used in automotive applications.

Hindered amines show excellent UV protection by scavenging free radicals generated by photo degradation. When to use HALS or other light stabilizers depends on the processing requirements and demands of the end user. In some cases, combinations of light stabilizers have shown superior performance. 

Liquid HALS
ADK STAB LA-81 is a high performing third generation HALS (hindered amine light stabilizer) that can stabilize polymers against photo-degradation even in strong acidic environment.
Liquid HALS
PALMAROLE HALS 92 is a hindered amine light stablizer for use in polymers, coatings and adhesives.

The benzophenone and benzotriazole based products are termed UV Absorbers and stabilize by 1.) preferential absorbtion of UV light and 2.) dissipating this harmful energy in a safe manner via stabilized excited states. By this mode of action these sophisticated molecules protect plastic products during their useful lifetime.

UV - Absorbers
ADK STAB LA-12 is a hydroxybenzoate based UV absorber. It protects polymers from UV radiation and extends the outdoor lifetime of plastic articles.
UV - Absorbers
ADK STAB LA-31RG is a high molecular weight UV absorber belonging to the hydroxy-phenyl benzotriazole family. It protects polymers from UV radiation and extends their exterior lifetime.
UV - Absorbers
LA-46 provides excellent weatherability for polymers. This product also shows low volatility due to its high thermal stability and good solubility to polymers.
UV - Absorbers
ADK STAB LA-1000 is suitable for engineering plastics and especially for PC cap layer applications.