UV Stabilizers – UV Absorber & Hindered Amine Light Stabilizers

UV stabilizers contains two types of light stabilizers: Ultraviolet Light Absorbers (UVA) and Hindered-Amine Light Stabilizers (HALS), used individually or as blends. UVA filters harmful UV light and help prevent color change and delamination of coatings, adhesives, and sealants. HALS trap free radicals once they are formed and are effective in retaining surface properties such as gloss and preventing cracking and chalking of paints. The combination of these two families is highly synergistic.

UV stabilizer product list

  • UV Absorber BP-3, BP-6,  P, 1130, 1164, 1157,  234, 326, 329, 360, 3638, 384-2,400, 531, 928, 99-2, 5050, 5060.
  • Hindered Amine Light Stabilizers 119, 292, 622, 765, 770, 783, 791, 944, 2020, 3808PP5, 3853PP5

UV Stabilizers for Plastic & Coating

Name CAS No. Features
UV Absorber
Sinosorb® BP-1 131-56-6 Benzophenone Class UV Absorber For Polyolefins, PVC
Sinosorb® BP-2 131-55-5 Benzophenone UV Stabilizer for Cosmetics
Sinosorb® BP-3 131-57-7 Benzophenone UV Absorber for Cosmetics
Sinosorb® BP-6 131-54-4 Benzophenone UV Absorber for Polyester Films.
Sinosorb® BP-8 131-53-3 Benzophenone UV Absorber for Cosmetics Products
Sinosorb® UV 1 57834-33-0 UV Stabilizer for PET/PC Products.
Sinosorb® UV P 2440-22-4 benzotriazole for a wide array of substrates, yellow powder
Sinosorb® UV 120 4221-80-1 UV Absorber For PP & PE
Sinosorb® UV 1130 104810-48-2 liquid benzotriazole for solvent and water-based coatings
Sinosorb® UV 1164 2725-22-6 triazine for nylon and engineering plastics, yellowish powder
Sinosorb® UV 1577 147315-50-2 triazine with high performance and low volatility
Sinosorb® UV 234 70321-86-7 benzotriazole with low volatility for high temperatures
Sinosorb® UV 312 23949-66-8 Oxanilide Sinosorb® UV absorber for PC, PVC, PA, white powder
Sinosorb® UV 320 3846-71-7 benzotriazole for PVC, polyester, light yellow powder
Sinosorb® UV 326 3896/11/5 benzotriazole with various plastics usage, light yellow powder
Sinosorb® UV 327 3864-99-1 benzotriazole for plastic, coating, paint, light yellow powder
Sinosorb® UV 328 25973-55-1 benzotriazole for plastic, coating, paint, light yellow powder
Sinosorb® UV 329 3147-75-9 benzotriazole for plastic, coating, paint, light yellow powder
Sinosorb® UV 360 103597-45-1 benzotriazole with very low volatility for acrylic resins, engineering plastics
Sinosorb® UV 3638 18600-59-4 UV Stabilizer for PET/PC
Sinosorb® UV 384-2 127519-17-9 liquid benzotriazole for high-performance solvent & water-based coating
Sinosorb® UV 400 153519-44-9 HPT for waterborne coating, white dispersion
Sinosorb® UV 531 1843-05-6 benzophenone for PVC, EVA, PP, PE, light yellow powder
Sinosorb® UV 571 125304-04-3 liquid benzotriazole for PUR, PVC, PS, SBS, SIS, TPE, TPU, UP
Sinosorb® UV 928 73936-91-1 benzotriazole for high-performance solvent-based & powder coatings
Sinosorb® UV 99-2 127519-17-9  UV Absorber for Coatings & Plastics
Light Stabilizer
Sinolstab® UV 111 Blend polyolefins (PP, PE), olefin copolymers
Sinolstab® UV 119 106990-43-6 hindered amine light stabilizer for agricultural films, anti-pesticide and acid rain, light yellow granules
Sinolstab® UV 123 12957-67-1 hindered amine light stabilizer for industrial and automotive coatings, light yellow liquid
Sinolstab® UV 144 63843-89-0 automotive coatings, coil coatings, powder coating
Sinolstab® UV 292 41556-26-7/ hindered amine light stabilizer for various coatings, light yellow liquid
Sinolstab® UV 2908 67845-93-6  Polyolefin plastic like PP and PE
Sinolstab® UV 3346 82451-48-7 PE/PP film, tape, injection
Sinolstab® UV 3529 193098-40-7 PE/PP film, tape, injection & rotational molding
Sinolstab® UV 4050 124172-53-8 light stabilizer for polymers
Sinolstab® UV 5050 127519-17-9 UV Stabilizer Blend Specifically Designed For Coatings
Sinolstab® UV 5050H 152261-33-1  Light stabilizer polyolefins (PP, PE), olefin copolymers
Sinolstab® UV 5060 127519-17-9  UV Absorber for Solvent-Based Industrial And Decorative Coatings
Sinolstab® UV 5151 127519-17-9 UV Stabilizers Blend For Coatings & Paints
Sinolstab® UV 622 65447-77-0 high molecular weight HALS with excellent color, low basicity, yellow granules
Sinolstab® UV 765 41556-26-7/ liquid low molecular weight HALS in polyurethane
Sinolstab® UV 770 52829-07-9 low molecular HALS, especially for thick-section applications
Sinolstab® UV 783 65447-77-0/ a synergistic blend of high molecular weight HALS
Sinolstab® UV 791 52829-07-9 a synergistic blend of high and low molecular weight HALS
Sinolstab® UV 866 Blend UV stabilizer for polyurethane
Sinolstab® UV 944 70624-18-9 high molecular weight HALS, especially for thin section applications
Sinolstab® UV 2020 192268-64-7 high molecular weight HALS, especially for tapes and monofilaments
Sinolstab® 3808PP5 167078-06-0 light stabilizer for polyolefins, polypropylene, and TPO, waxy solid
Sinolstab® UV 3853PP5 167078-06-0 light stabilizer for polyolefins, polypropylene, and TPO, waxy solid
Sinolstab® UV B75 Blend UV stabilizer for coatings
Sinolstab® UV SEED 42774-15-2 multi-functional nylon additive

BASF & China UV Stabilizer Compare

Longchang chemical UV stabilizers are min99% similar according to IR, over half of our domestic customers use our UV stabilizers as replacements of imports to have a competitive edge.

We control batch-to-batch quality consistency, to further protect our buyer’s interests. We use T/T+L/C for bulk orders.

BASF Songwon Addivant&
UV 1130 Tinuvin 1130 Songsorb CS 1130
UV 1164 Tinuvin 1164 Cyasorb UV
UV 234 Tinuvin 234 Songsorb 2340 Lowilite 234 Uvinul 3034
UV 312 Tinuvin 312 SABO STAB
UV 312
UV 320 Tinuvin 320
UV 326 Tinuvin 326 Songsorb 3260 Lowilite 26 Uvinul 3026
UV 327 Tinuvin 327 Songsorb 3270 Lowilite 27 Uvinul 3027
UV 328 Tinuvin 328 Songsorb 3280 Lowilite 28 Uvinul 3028
UV 329 Tinuvin 329 Songsorb 3290 Lowilite 29 Uvinul 3029
UV 360 Tinuvin 360 Songsorb 3600
UV 3808 SABO STAB UV 91 Cyasorb UV
UV 384-2 Tinuvin 384-2 Songsorb CS 384-2
UV 3853 SABO STAB UV 91 Cyasorb UV
UV 400 Tinuvin 400 Songsorb CS 400
UV 531 Chimassorb 81 Songsorb 8100 Lowilite 22 Uvinul 3008
UV 571 Tinuvin 571
UV 928 Tinuvin 928 Songsorb CS 928
UV P Tinuvin P Songsorb 1000 Lowilite 55 Uvinul 3033 P
HALS 119 Chimassorb 119 Songlight 1190 Lowilite 19
HALS 123 Tinuvin 123
HALS 292 Tinuvin 765 (292) Songlight 2920 Lowilite 92 Uvinul 4092 H
HALS 622 Tinuvin 622 Songlight 6220 Lowilite 62 Uvinul 5062 H
HALS 770 Tinuvin 770 Songlight 7700 Lowilite 77 Uvinul 4077 H
HALS 783 Tinuvin 783 Lowilite 6294
HALS 791 Tinuvin 791 Lowilite 7794
HALS 944 Chimassorb 944 Songlight 9440 Lowilite 94

UV absorbers: UV- 770, UV- 622, UV- 944, UV- 326, UV- 329, UV- P, UV- 783, UV- 123, UV- 292, UV- 400, UV- 1130, UV- 328, UV- 384-2, UV- 234, UV- 360, UV- 571.

UV- 770: is a bis(2,2,6,6,-tetramethyl-4-piperidinyl) sebacate. It is a low molecular weight hindered amine light stabiliser (HALS) for applications requiring particularly high light stability. It provides excellent light stability for thick sections, but can also be used for high surface area articles such as films and tapes. UV- 770 is recommended for polypropylene, impact modified PP (TPO), EPDM, polystyrene, impact polystyrene, ABS, SAN, ASA, polyurethane, but also polyamide and polyacetal. The recommended concentration range is 0.1-1.0% depending on the substrate, processing conditions and application.

UV- 622: is an oligomeric hindered amine light stabiliser (HALS). In addition, it is effective as an antioxidant and contributes significantly to the long-term thermal stability of polyolefin and tackifier resins. Due to its high molecular weight oligomeric structure, it is suitable for all applications requiring low volatility and minimal migration. Its application areas include polyolefins (PP, PE), olefin copolymers (e.g. EVA) and blends of polypropylene and elastomers. In addition, UV- 622 is very effective in polyacetal, polyamide and polyurethane applications. The recommended dose is 0.15-1.2%.

UV- 944 : is a poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl] [(2,2,6,6 -tetramethyl-4-piperidinyl)imino]-1,6hexanediyl [(2,2,6,6-tetramethyl-4-piperidinyl)imino]]). It is a high molecular weight oligomeric hindered amine light stabiliser (HALS) and heat stabiliser. Shows excellent compatibility, good extraction resistance and low volatility. Imparts excellent light stability to thin products, especially fibres and films. In thick sections it is particularly suitable for polyethylene products.UV- 944 is very effective as a long-term heat stabiliser in thin and thick products and shows good extraction resistance. Its application areas include polyolefins (PP, PE), olefin copolymers (e.g. EVA) and blends of polypropylene and elastomers.

UV- 326: It is a hydroxyphenyl benzotriazole UV absorber. With low volatility at elevated temperatures, high resistance to thermal degradation and photostability to plastics, UV- 326 is used in hot-melt, solvent-borne, reactive and radiation-curing adhesives and sealants.

UV- 329: Chemically 2 phenol, 2-(2H-benzotriazol-2-yl)-4-(1,3,3-tetramethylbutyl) grade. It is used as a UV absorber belonging to the hydroxyphenyl benzotriazole group. It is an effective light stabiliser for various plastics and other organic substrates. It protects polymers from the effects of UV radiation and helps to maintain the original appearance and physical integrity of moulded products, films, sheets and fibres in outdoor climates.UV- 329 can be used in quantities ranging from 0.1 to 1.0% depending on the substrate and performance requirements of the final application.

UV-P: is 2-(2H-benzotriazol-2-yl)-4-methylphenol. Acts as a UV absorber. It belongs to the hydroxyphenyl benzotriazole group and imparts good photostability to a wide range of polymers. Provides strong absorption of UV radiation in the 300-400 nm range. Exhibits high photostability under prolonged exposure. Provides UV protection in a wide range of polymers including styrene homopolymers and copolymers, engineering plastics (e.g. polyesters and acrylics), PVC and other halogen-containing polymers and copolymers (e.g. vinylidene), acetals and cellulose esters. Also suitable for polycarbonate blends, polyurethanes and epoxy materials.The dosage of UV-P ranges from 0.1% to 0.5%, depending on the substrate and performance requirements of the final application.

UV- 783: is a synergistic blend of UV- 944 and UV- 622.  It is particularly suitable for LDPE, LLDPE, HDPE films, adhesive tapes and thick profiles as well as PP films.UV-783 is also the product of choice for thick-walled parts requiring indirect food contact approval. Its application areas include polyolefins (PP, PE), olefin copolymers (e.g. EVA) and blends of polypropylene with elastomers and PA. The recommended dose is 0.05-1.4 per cent.

UV- 123: is a liquid HALS stabiliser based on amino ether functional groups. Its low alkalinity prevents interaction with acidic coating components such as catalysts.UV- 123 improves the weathering properties of the polymer.

UV- 292: is a liquid Bis (1,2,2,6,6-pentamethyl-4-piperidinyl) sebacate and 1,1,2,2,6,6-pentamethyl-4-piperidinyl sebacate. Used as a Hindered Amine Light Stabiliser (HALS). Designed for use in non-acid catalyzed automotive, industrial, wood stain or DIY coatings and radiation cured coatings. UV-292 provides excellent protection against gloss reduction, cracking, blistering, delamination and discolouration.

UV-400: UV-400 from BASF is a liquid hydroxyphenyltriazine. Acts as a UV absorber. Used in automotive OEM and refinish systems, UV cured coatings and industrial coatings. Has high thermal stability. High light stability for extended service life.UV-400 is available in high concentrations for maximum efficiency. Recommended dosage is 1-3%.

UV- 328: Is a UV absorber grade. It is used for articles, films, sheets and fibres during outdoor weathering. It has good light stability. Compatible with styrene homopolymers and copolymers, acrylic polymers, unsaturated polyesters, polyvinyl chloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral and elastomers. UV- 328 is recommended for adhesive applications.

Acts as an ultraviolet absorber (UVA) for hydroxyphenyl benzotriazoles. Highly thermally stable and environmentally durable. Provides high performance, durability, ease of incorporation and inhibits or delays the onset of failures such as gloss reduction, cracking, discolouration, blistering and delamination.UV-384-2 is used in hot-melt, reactive, solvent-borne and radiation-curing adhesives and sealants. The recommended dose is 1-3%.


UV- 234: A high molecular weight ultraviolet absorber (UVA) of the hydroxyphenyl benzotriazole group. It has features such as low volatility, very good light absorption properties and good compatibility in various substrates. Used in hot-melt, solvent-borne, reactive and radiation-curing adhesives and sealants for moulded products, films, sheets and fibres, UV-234 protects organic polymers as well as pigments from UV damage, thus improving and preserving the technical and visual properties of such applications.

UV- 360: UV- 360 is chemically a phenol 2,2,2′-methylene bis(6-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)) grade. Acts as a UV absorber. It is a very low volatility product of the hydroxyphenyl benzotriazole class that provides excellent photostability to a wide range of polymers. Particularly suitable for processing and aging conditions requiring high loading and good compatibility. Helps achieve high UV shielding properties and minimises sublimation through vents and prevents deposits on moulds, cooling rolls or calibrators. Also suitable for complex moulded products, fibres, sheets, double-wall panels, films and semi-finished products for lamination or co-extrusion. With acrylic resins, polyalkylene terephthalate, polycarbonates, modified polyphenylene ethers or vulcanisates, polyamides, polyacetals, styrenes, elastomers and various high performance plastics. UV-360 (0.2-10% by weight) can be easily incorporated into polymers using conventional techniques such as powder, solution or melt blending (e.g. extrusion blending).

UV- 571: is a liquid benzotriazole UV absorber. Gives good photostability to a wide range of polymers. It has high compatibility with various substrates, low volatility even at high temperatures, and high absorption and protection efficiency. Highly soluble in many solvents, monomers or intermediates and easily emulsified in water-based adhesives. Can be considered for use in polymerisation processes or topically on PVC sheets. Suitable for thermoplastic PUR, coatings and integral foams, rigid and plasticised PVC, PVB, PMMA, PVDC, EVOH, EVA, heat cured unsaturated polyesters and spinning oils. PA, PET, PUR and PP fibres. Also suitable for styrene homopolymers and copolymers, elastomers and polyolefins. 571 is available in a dosage range of 0.2 to 5.0 per cent.

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