Hindered Amine Light Stabilizers
Enduring Protection: Hindered Amine Light Stabilizers (HALS) for Long-Lasting Polymers
Hindered Amine Light Stabilizers (HALS) are specialized additives used in chemical manufacturing, particularly in the production of plastics, coatings, and other polymeric materials. HALS are designed to protect these materials from degradation caused by exposure to UV light and other environmental factors. When polymeric materials are exposed to sunlight or artificial UV light, they undergo a process known as photodegradation. This process can lead to various issues, including discoloration, surface cracking, loss of mechanical properties, and reduced service life. HALS act as effective UV stabilizers by inhibiting the photodegradation process.
HALS work by capturing and neutralizing free radicals that are generated during the photodegradation of polymeric materials. Free radicals are highly reactive molecules that cause the degradation of the polymer chain. By scavenging and neutralizing these radicals, HALS prevent further chain reactions, thus slowing down or halting the degradation process. The incorporation of HALS into plastics, coatings, and other polymeric materials significantly extends their lifespan and enhances their resistance to weathering and UV-induced damage. As a result, products with HALS-based formulations exhibit improved color retention, enhanced mechanical properties, and increased overall durability.
Manufacturers carefully choose the appropriate HALS for specific applications, considering factors such as the type of polymer, the intended end-use environment, and the required level of UV protection. Proper testing and quality control measures are employed to ensure the effective performance of HALS in various chemical manufacturing processes and end products.
Showing all 6 results
Product Classes
Antifouling Agents
Antioxidants
Antistatic Agents
Bleaching Agents / Stabilizers
Conditioners
Emollients
Emulsifiers
Film Formers / Water Resistant
Fluorescence Quenchers
Glossing Agents
Hair Fixatives
HALS
Optical Brighteners
Polymerization Inhibitors
Rheology Modifiers
Suspending Agents
UV Absorbers
Hindered Amine Light Stabilizers
UVASORB® HA88
3V Sigma Exclusive
CAS #136504-96-6
Chemistry: Oligomeric
- High molecular weight (3,000)
- Low migration and volatility rate
- High thermal stability
- High antioxidant activity
- Gas fade resistance
- High compatibility with many different kinds of polymers
UVASORB® HA10
3V Sigma Exclusive
CAS #136504-96-9
Chemistry: Polymeric
- Very high molecular weight (11,000)
- High antioxidant activity
- Minimum volatility and migration rate
- Superior compatibility with many different kinds of polymers
- Low water carryover Long-term thermal stabilization
UVASORB® HA192X
3V Sigma Exclusive
CAS Proprietary
Chemistry: Blend
- Very high molecular weight
- Very high chemical resistance to sulphur and chloride
- Minimum volatility and migration rate
- High antioxidant activity
- Superior compatibility with many different kinds of polymers
UVASORB® HA44
944 Equivalent
CAS #71878-19-8 / 70624-18-9
Chemistry: Oligomeric
- High molecular weight (2,000 – 3,000)
- Low migration and volatility rate
- High thermal stability
- High antioxidant activity
- Gas fade resistance
- High compatibility with many different kinds of polymers
UVASORB® HA45
4050 Equivalent
CAS #124172-53-8
Chemistry: Monomeric
- Excellent protection against loss of gloss, cracking and blistering
- Low volatility
- High compatibility with nylon, ABS, PMMA & HDPE
UVASORB® HA19
119 Equivalent
CAS #106990-43-6
Chemistry: Monomeric
- High molecular weight (2286)
- Minimum volatility and migration rate
- High antioxidant activity
- Superior compatibility with many different kinds of polymers
UVASORB® HA22
622 Equivalent
CAS #65447-77-0
Chemistry: Oligomeric
- Low water carryover
- High antioxidant activity
- Minimum volatility and migration rate
- Superior compatibility with many different kinds of polymers
- Long term thermal stabilization
- Low interaction with co-additives such as pigments
UVASORB® HA77
770 Equivalent
CAS #52829-07-9
Chemistry: Monomeric
- Low molecular weight
- Excellent solubility in organic solvents
- Superior compatibility with many different kinds of polymers
UVASORB® HA29
765 Equivalent
CAS #41556-26-7 / 82919-37-7
Chemistry: Monomeric
- Excellent protection against loss of gloss, cracking and blistering
- Low volatility
- High compatibility with a broad range of additives in plastics formulations
- Long term efficiency in both clear and pigmented systems
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