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

BASF & China UV Stabilizer Compare

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.