We’re in the midst of summer, and the hot and sunny weather has made us reflect on the impact that sunlight and UV radiation can have on plastic materials.
So, we thought this was the perfect time to talk about UV absorbers and HALS.
HALS and UV absorbers: what is the right solution for you?
Light stabilizers are essential additives used to protect polymers from the degrading effects of light and UV radiation. The two main classes of light stabilizers are UV absorbers and HALS (Hindered Amine Light Stabilizers), and they work through different mechanisms:
UV absorbers absorb UV radiation and dissipate it as low-level heat, preventing it from penetrating the polymer matrix.
HALS, on the other hand, don’t absorb UV radiation but act as radical scavengers. They neutralize the free radicals formed during the photo-oxidative degradation of polymers.
You choose a UV absorber if:
- Your material is exposed to direct sunlight or UV lamps.
- You want to reduce yellowing or loss of transparency in clear polymers.
- You’re working with thin articles where surface protection is critical.
- You’re formulating products in sectors like cosmetics, automotive coatings, or adhesives.
UV absorbers are ideal for enhancing appearance retention and preventing photo-oxidative degradation, especially in materials where light passes through the surface layer.
You choose a HALS if:
- You need long-term protection in outdoor environments.
- Your product is used in thick-walled parts or colored articles.
- You’re aiming to increase polymer durability and reduce cracking or chalking.
- You’re active in the construction, agriculture (e.g. films), or automotive sectors.
HALS are highly effective in stabilizing the mechanical properties of polymers, offering prolonged protection, especially in combination with UV absorbers.
An overview of the UV absorbers and HALS market
The market for UV stabilizers in Europe is experiencing strong growth, supported by increased industrial demand and stricter quality expectations across multiple sectors. According to Data Bridge Market Research, the European UV stabilizer market is projected to reach over EUR 320 million by 2030, with a CAGR of 5.4% between 2023 and 2030.
One of the most promising segments is that of HALS, which is expected to grow globally at a CAGR of 7.8% by 2033, according to UnivDatos. The reason behind this trend is the growing awareness of the impact of UV radiation on material durability and performance.
What’s driving this market growth?
Rising awareness of UV degradation: the detrimental effects of UV radiation on materials are increasingly recognized, driving the demand for solutions that ensure long-lasting protection.
Expanding applications: UV absorbers and HALS are widely used in plastics, coatings, adhesives, personal care, and beyond.
Stringent environmental regulations: Various industries are adopting UV stabilizers to meet performance and safety standards.
Technological advancements: New, more efficient stabilizer formulations are improving durability and broadening the range of protected applications.
As companies focus on durability, safety, and sustainability, high-performance UV absorbers are increasingly valued in markets such as automotive, outdoor furniture, and cosmetics.
In particular, the outdoor sector (furniture, agricultural films, coatings) requires effective protection against solar radiation. Automotive manufacturers are also increasingly incorporating UV absorbers in coatings to preserve both aesthetics and long-term material integrity.
Similarly, the global focus on green chemistry is pushing the development of biodegradable and eco-friendly solutions, especially for outdoor applications.
According to Stratview Research, the Asia-Pacific region is expected to see the highest CAGR from 2023 to 2028, thanks to industrial expansion and the rising use of UV absorbers in plastics for automotive parts, packaging, and agricultural films.
Curious to see what kind of stabilizing solutions we offer?
Explore our range of UV absorbers and light stabilizers directly on our website, and contact us for more information: salesteam@greenchemicals.green