Líquido, easy to add
No milling; blends directly into the coating.
SUNSORB® 384-2
UV-384-2 Liquid UV Absorber Supplier for Coatings
SUNSORB® 384-2 is a liquid benzotriazole UV absorber for solvent-borne and waterborne coatings. It is easy to incorporate and is usually combined with a liquid HALS such as 292 for durable automotive, industrial and wood coatings.
CAS 127519-17-9 · Benzotriazole · Liquid UV absorber
- Lote COA com cada remessa
- Amostras para seus testes
- Suporte técnico para seu teste
Visão geral do produto & principais benefícios
UV-384-2 (C7–C9 branched and linear alkyl esters of 3-(2H-benzotriazol-2-il)-5-(1,1-dimetiletil)-4-hydroxybenzenepropanoic acid) is a liquid, so it blends directly into coatings without milling. It protects both the coating and the substrate underneath, especially wood.
Coating durability
Protects gloss and color of the coating and the substrate.
Works with liquid HALS
Typically combined with 292 ou 123.
Especificações técnicas
| Parâmetro | Valor típico |
|---|---|
| Nome do produto | UV Absorber UV-384-2 |
| Marca | SUNSORB® 384-2 |
| Nº CAS. | 127519-17-9 |
| Nome Químico | Benzenepropanoic acid, 3-(2H-benzotriazol-2-il)-5-(1,1-dimetiletil)-4-hidroxi-, C7–C9 branched and linear alkyl esters |
| Aparência | Light-yellow viscous liquid |
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
Applications by Material
Pick an application to see how 384-2 is normally used and what to confirm before your trial.
Automotivo & Industrial Coatings
Typically 1–3% on binder solids with a liquid HALS.
Verifique antes do teste
- Coating type and binder
- Cure conditions
- Durability target
Wood Coatings
Protects wood from UV darkening under clear coats.
Verifique antes do teste
- Waterborne or solvent-borne
- Wood species
- Exterior or interior
Inks, Adesivos & Other Coatings
UV absorber for other liquid systems.
Verifique antes do teste
- System type
- Compatibilidade
- Exposure
Seleção & comparação
Selecting a UV Absorber
| Sua necessidade | O que geralmente funciona |
|---|---|
| Clear or light-colored polyolefin parts and film | Benzophenone (531) or benzotriazole (326) at low loading |
| High processing temperature (computador, BICHO DE ESTIMAÇÃO, PA) | Low-volatility grades: 234, 360 or 1577-type triazines |
| Thin films and fibers | Higher-MW, low-volatility grades so the absorber is not lost in processing |
| Solvent-borne and waterborne coatings | Liquid benzotriazoles (384-2, 1130) or triazine (400), paired with a HALS |
| Outdoor service longer than one season | UV absorber plus a HALS; the absorber filters, the HALS stops radical chains |
| Exports to the EU | Check REACH status first; some benzotriazoles (327, 328) are restricted |
| Replacing an existing grade | Envie seu TDS ou COA atual; we match on chemistry and the parameters you approve |
UV Absorber Comparison
Swipe or scroll horizontally to see all columns →
| Produto | Chemistry | Mol. peso | Ponto de fusão / form | Best fit | Typical starting level* |
|---|---|---|---|---|---|
| SUNSORB® 384-2 | Benzotriazole, líquido | - | Líquido | Revestimentos | 1–3% on binder solids |
| SUNSORB® 400 | Hydroxyphenyl-triazine, líquido | - | Líquido | Automotive and industrial coatings | 1–3% on binder solids |
| Sunlight® 292 | Liquid HALS | - | Light-yellow liquid | Revestimentos | 0.5–2% on binder solids |
| Sunlight® 123 | NOR HALS, líquido | - | Light-yellow liquid | Acid-catalyzed coatings | 0.5–2% on binder solids |
| SUNSORB® 1130 | Benzotriazole, líquido | - | Líquido | Revestimentos | 1–3% on binder solids |
*Starting points for trials, not fixed recommendations. Loading depends on part thickness, pigment, target service life and the HALS used alongside. UV absorbers and HALS work by different mechanisms and are usually combined.
Embalagem & armazenar
Embalagem
Tipicamente 25 kg pails or 200 tambores de kg; IBC on request. Confirm the pack in the quotation.
Armazenar
Keep containers closed, away from heat and direct sun. Warm gently and mix before use if the liquid has thickened in cold weather. See the SDS.
Tempo de espera & terms
Typically 3–15 business days from order confirmation, depending on quantity. FOB, CIF or DAP to major ports.
Do primeiro e-mail ao fornecimento aprovado
Define the exposure
Indoor light behind glass, outdoor temperate climate and desert or tropical exposure need very different packages. Note the target service life and the weathering test you use (xenon or QUV, horas, ΔE or gloss retention).
Match absorber to process and thickness
A UV absorber works by filtering, so it needs enough path length: thick parts need less, thin films and fibers need more and need a low-volatility grade. Check the absorber survives your processing temperature.
Combine with a HALS
For outdoor use the standard approach is UV absorber plus HALS. Send your current package and pigment system and we suggest a starting combination for the trial.
Check regulations before you buy
Some benzotriazoles are restricted in the EU and other markets. Tell us the destination and end use, and we confirm the REACH and food-contact position of the grade before you order.
Diga-nos sua necessidade. Nós combinamos a nota.
Comece com seu material, espessura da peça, quantidade e destino. Add your current UV package and we will quote against it.
| Informação | Exemplo |
|---|---|
| Polymer / Material | PP, Educação Física, abdômen, composto, lote mestre |
| Aplicativo | Moldagem por injeção, extrusão, filme, fibra |
| Aditivo atual | Classe ou fornecedor que você usa hoje |
| Especificação necessária | Your TDS, COA or key limits |
| Quantidade | Trial order / monthly / volume anual |
| Embalagem | Standard 25 kg or specific requirement |
| Destino | País e porto |
| Documentos necessários | COA, FDS, ALCANÇAR, food-contact statement |
Produtos relacionados
SUNSORB® 400
Hydroxyphenyl-triazine liquid UV absorber for durable automotive and industrial coatings.
Ver produto →SUNSORB® 1130
Liquid benzotriazole UV absorber for coatings, often paired with liquid HALS.
Ver produto →UV Absorber UV-384-2 FAQ
Is 384-2 suitable for waterborne coatings?
Sim, it is used in both solvent-borne and waterborne systems. Check incorporation method with your formulation.
What dosage is typical?
1–3% on binder solids, usually with 0.5–2% of a liquid HALS.
Can it replace UV-328 in coatings?
It is a common replacement. Re-test durability after switching.
Posso obter uma amostra antes de fazer o pedido?
Sim. Diga-nos o polímero, o teste que você planeja realizar e a quantidade necessária. As amostras são enviadas com um COA para que você possa comparar o lote com o material atual.
E se um COA não corresponder à especificação acordada?
Envie-nos a especificação acordada e o COA mostrando a diferença (parâmetro, unidade e método de teste). Verificamos com o registro do lote de produção antes de você aceitar o material, e substitua ou teste novamente quando o lote estiver fora das especificações.
