UV Absorber

Your Professional UV Absorber Supplier

Suzhou Jixin Trading Co., Ltd. is a professional chemical additive agency and the designated representative for numerous renowned global chemical enterprises. Our primary product offerings include fluorescent whitening agents, antioxidants, UV absorbers, and light stabilizers. Our core business sectors encompass plastics, inks, coatings, rubber, and specialized application fields.
Professional Team
We possess extensive technical expertise, comprehensive knowledge of product applications, a dedicated and innovative marketing team, and attentive after-sales service. We are committed to delivering high-quality products and services to manufacturers across various industries.

Timely Response
The company is headquartered in Suzhou High-Tech Development Zone and operates distribution warehouses in Shanghai, Yuyao, Guangzhou, and other strategic locations, enabling us to promptly address the needs of every customer.

Sales Market
We maintain partnerships with leading global additive research and development institutions, leveraging our professional capabilities. Through our technical support and premium products, we have expanded our sales network to Japan, South Korea, Southeast Asia, Europe, and the Americas, thereby earning the trust and satisfaction of our clients.

Cost Savings
We assist clients in streamlining procurement processes and reducing associated costs. For all suppliers, we offer a standardized platform for procurement and logistics, aiming to provide customers with a comprehensive range of convenient and efficient services.

UV Absorber-9
As a benzophenone UV absorber, the maximum UV absorption wavelength range is 290-400nm. Suitable for PVC, polyvinylidene chloride, ABS resin, polystyrene and polysulfone.
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UV Absorber-144
UV-144 is a hindered amine stabilizer with partial inhibited phenol anti-oxidation behavior. The product protects the coating to minimize cracking and loss of gloss, thus significantly extending...
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UV Absorber-531
Polymer is easily affected by ultraviolet light, resulting in changes in physical properties. Elasticity decreases to zero, particles become brittle and lose mechanical strength. Laboratory and...
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UV Absorber-329
As an ultraviolet absorber, this product is mainly suitable for polyolefin, polystyrene, acrylic glass, polycarbonate, ABS resin and so on. The amount is generally 0.1-1%.
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UV Absorber-P
As an ultraviolet absorbent, this product is mainly suitable for polyester, epoxy cellulose acetate, polyvinyl chloride, polystyrene, acrylic glass, polyacrylonitrile resin, etc. The maximum...
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UV Absorber-326
As an ultraviolet absorber, can be used in polyolefin, PVC, acrylic glass core and ABS resin cold curing polyester and wood clear varnish, maximum absorption wavelength range 270-380nm.
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UV Absorber-328
328 is a phenyl substituted benzotriazole UV absorber that provides good photostabilization protection for plastics and other organic substrates.
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UV Absorber-360
360 has very low volatility and is a dimer of 2-hydroxybenzotriazole UV absorber that can be used in a variety of polymers and resins.
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UV Absorber-234
UV-234 is a light yellow powder with melting point of 139.5-141℃. It is an excellent light stabilizer and suitable for PP, TPE, hard PVC, POM, PA, PC, PBT/PET, PMMA and so on.
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UV Absorber-1130
UV-1130 is a hydroxyphenylbenzotriazole UV absorber that effectively protects the coating from cracking and spotting. The product is easy to emulsify and is particularly suitable for aqueous systems.
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UV Absorber-1577
1577 is particularly suitable for some processing and application occasions that require large amounts of UV absorbers, low volatilities, and good compatibility, such as complex molded products,...
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UV Absorber-327
As an ultraviolet absorber, this product is mainly suitable for polyolefin, but also can be used for PVC, polycarbonate, polyurethane, acrylic glass and a variety of coatings. The maximum...
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Specification

Chemical name	2-(2 '-hydroxy-5' -octyphenyl)benzotriazole	2-hydroxy-4-methoxy benzophenone
Molecular formula	C20H25N3O	C14H12O3
Molecular weight	323	228.3
CAS NO.	3147-75-9	131-57-7
Appearance	White powder	Light yellow powder
Content	≥ 99%	≥ 99%
Melting point	101-106℃	62-66℃
Loss on drying	≤ 0.5%	≤ 0.5%
Ash	≤ 0.1%	≤ 0.1%

Types of UV Absorber

The UV absorbers produced by our company mainly include the following types:

UV Absorber-144

UV-144 is a hindered amine stabilizer with partial inhibited phenol anti-oxidation behavior. The product protects the coating to minimize cracking and loss of gloss, thus significantly extending the service life of the paint film.

UV Absorber-531

Polymer is easily affected by ultraviolet light, resulting in changes in physical properties. Elasticity decreases to zero, particles become brittle and lose mechanical strength.

UV Absorber-326

As an ultraviolet absorber, can be used in polyolefin, PVC, acrylic glass core and ABS resin cold curing polyester and wood clear varnish, maximum absorption wavelength range 270-380nm.

Advantages of UV Absorber

Enhanced Durability and Longevity
UV absorbers increase the lifespan of agricultural films by preventing UV-induced degradation. The extended durability of these films translates to cost savings for farmers and manufacturers alike, as it reduces the frequency of film replacements. With UV absorbers, agricultural films can continue to perform effectively for a longer period, even under the harshest sunlight conditions.

Improved Crop Protection
By protecting agricultural films from UV degradation, UV absorbers ensure that the films maintain their strength, flexibility, and clarity. This results in better protection for crops from environmental stressors such as wind, rain, and pests, while also regulating temperature and humidity levels within greenhouse environments. The ability to maintain these conditions is crucial for maximizing crop yield and quality.

Sustainability and Environmental Benefits
As the world turns toward more sustainable agricultural practices, UV absorbers play a critical role in reducing plastic waste. By extending the lifespan of agricultural films, these additives decrease the need for frequent replacements, which in turn reduces the environmental impact of discarded plastic. Additionally, there is a growing trend toward using bio-based and biodegradable UV absorbers, which align with the industry’s efforts to promote circular economy practices.

Protection Against Temperature Fluctuations
The stability of agricultural films under UV exposure also helps mitigate the effects of extreme temperature fluctuations. Films that degrade under UV light may lose their ability to regulate internal temperatures, which can negatively impact crop growth. UV absorbers help prevent this degradation, ensuring that the films continue to provide reliable temperature control throughout their lifespan.

Applications of UV Absorber

Plastics: PE, PP, PET, PC, PVC, PA, ABS, and other engineering plastics.

Coatings: Automotive paints, industrial coatings, wood finishes.

Adhesives and sealants: To maintain bonding strength under sunlight.

Agricultural films: Greenhouse covers and mulch films.

Packaging materials: To protect contents and maintain clarity.

Electronics: For outdoor enclosures, cables, and connectors.

Precautions for Using UV Absorbers

Choose the Right Stabilizer
Match the stabilizer to your project. For clear coatings, use non-yellowing UV absorbers like triazines. For pigmented epoxies, titanium dioxide or HALS work well. Check supplier specs to confirm compatibility with your resin.

Test Small Batches
Mix a test batch with the stabilizer at 0.5-2% by weight. Cure it and expose it to UV light (natural or lab-simulated) for weeks. Check for yellowing, cracking, or adhesion issues. This prevents costly mistakes on large projects.

Mix Thoroughly
Uneven stabilizer distribution weakens protection. Use a high-shear mixer for 5-10 minutes to blend stabilizers into the resin or hardener. Stir again before application to ensure consistency.

Apply Thicker Layers
Thin epoxy layers degrade faster. Aim for a minimum thickness of 1-2 mm for coatings, adding extra stabilizer in high-UV areas. For adhesives, ensure full coverage to protect bonds.

Use Topcoats
A clear topcoat with high stabilizer content adds an extra UV barrier. Apply it over cured epoxy for added durability, especially in sunny climates. Reapply every 2-3 years for ongoing protection.

Monitor Environmental Conditions
UV stabilizers perform best at specific temperatures and humidities. Apply epoxy in dry conditions, ideally 50-80°F, to ensure proper curing. Avoid direct sunlight during application to prevent premature UV exposure.

Document Everything
Record stabilizer types, ratios, and test results. This helps troubleshoot issues and ensures consistency across batches. Digital logs simplify scaling or regulatory checks.

Storage Precautions for UV Absorbers

This product has good storage stability. High temperature and humidity should be avoided during storage and transportation. It should be stored in a cool, dry and ventilated place to prevent moisture and heat.

Packaging and Shipping

Packaging	Cardboard barrels lined with plastic bags, net weight of each barrel is 25Kg.
Shipping	We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.

FAQ

Q: How does an UV absorber work?

A: The main function of UV absorbers is to absorb UV radiation in the presence of a chromophore (Ch) found in the polymer, the aim is to filter out the UV light that is harmful to the polymer before chromophore free radical Ch* has had a chance of forming.

Q: What are the different types of UV absorbers?

A: UV absorbers are categorized by chemical class, for example benzotriazoles, benzophenones, and triazines. Each class has its own UV absorbance characteristics. For example, benzophenone- and triazine-types tend to absorb more strongly in the short wavelength UV-B region than the benzotriazole-types.

Q: What is the difference between a light stabilizer and a UV absorber?

A: UV absorbers are organic compounds that absorb UV radiation, converting it into heat energy. At the same time, light stabilizers are generally inorganic compounds that reflect UV radiation and dissipate it into other forms of energy.

Q: What is the reaction of a UV absorber?

A: Ultraviolet absorbers protect materials by converting absorbed ultraviolet rays into low-impact heat and energy through chemical reactions. Ultraviolet absorbers are mainly used to curtail photodegradation in plastics by playing a key role in suppressing the generation of radicals that cause plastic to degrade.

Q: What is the wavelength of a UV absorber?

A: The conventional ultraviolet absorber has a strong colored effect when covering the cut-off range up to long wavelengths. The range that can be blocked comparatively with less-colored material is mainly from 280nm to 370nm.

Q: What is the difference between UV absorber and UV stabilizer?

A: UV protective additives fall into two categories: absorbers and stabilizers. UV absorbers dissipate the energy in a less damaging form, while UV stabilizers act as scavengers, reducing the reactivity of any free radicals formed within the coating.

As one of the leading uv absorber enterprises in China, we warmly welcome you to buy discount uv absorber in stock here from our factory. All chemicals are with high quality and low price.

UV Absorber 326, inorganic uv absorbers, UV Absorber 531