Thin sections
Low volatility and extraction for film, tape and fiber.
Sunlight® 944
HALS 944 Polymeric Light Stabilizer Supplier
Sunlight® 944 é um estabilizador de luz polimérico de amina impedida (HALS). Its high molecular weight gives low volatility and extraction resistance, making it the standard for PP and PE film, tape, fiber and thin parts.
CAS 70624-18-9 · Polymeric HALS
- Lote COA com cada remessa
- Amostras para seus testes
- Suporte técnico para seu teste
Visão geral do produto & principais benefícios
HALS 944 (poli[[6-[(1,1,3,3-tetrametilbutil)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetrametil-4-piperidil)imuno]hexamethylene[(2,2,6,6-tetrametil-4-piperidil)imuno]]) has a number-average molecular weight of about 2000–3100. It does not evaporate in processing or wash out in use, so it gives long outdoor life in thin sections, and it is often blended with 770 or a UV absorber.
Long outdoor life
Widely used in agricultural film and outdoor fabrics.
Antioxidant contribution
Also adds long-term thermal stability in polyolefins.
Especificações técnicas
| Parameter | Typical value |
|---|---|
| Nome do produto | Estabilizador de luz 944 |
| Marca | Sunlight® 944 |
| Nº CAS. | 70624-18-9 |
| Peso molecular | Mn 2000–3100 |
| Aparência | Light-yellow granule or powder |
| Melting Range | 100–135 °C |
| Cinzas | ≤0,1% |
| Volatile Matter | ≤0,5% |
| Light Transmittance — 425 nm | ≥93% |
| Light Transmittance — 450 nm | ≥95% |
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 944 is normally used and what to confirm before your trial.
PE/PP Film, Tape & Raffia
Standard HALS for agricultural film, woven tape and raffia, typically 0.1–0.6%.
Check before trial
- Film gauge and target life
- Agrochemical exposure
- UV absorber used
PP Fiber & Nonwovens
Long-life outdoor fiber and nonwovens.
Check before trial
- Fiber denier
- Outdoor exposure
- Pigmentos
Polyolefin Molded Parts
Often blended with 770 for thick outdoor parts.
Check before trial
- Part thickness
- Pigment system
- Target weathering life
Selection & comparação
Selecting a Light Stabilizer
| Your requirement | What usually works |
|---|---|
| Thick PP and PE parts | Low-MW HALS (770) for fast migration to the surface |
| Thin films, tapes and fibers | Polymeric HALS (944, 622) for low volatility and extraction resistance |
| Agricultural film exposed to pesticides | Polymeric HALS with good resistance to acidic residues; ask about the specific chemicals |
| Automotive and industrial coatings | Liquid HALS (292) with a UV absorber |
| Acid-catalyzed coatings | Non-basic NOR-type HALS (123) |
| Long outdoor life | HALS plus UV absorber, often a blend of a low-MW and a polymeric HALS |
| Replacing an existing grade | Send your current TDS or COA; we match on the parameters you approve |
Light Stabilizer Comparison
Swipe or scroll horizontally to see all columns →
| Produto | Tipo | Mol. weight | Forma | Best fit | Typical starting level* |
|---|---|---|---|---|---|
| Sunlight® 944 | Polymeric HALS | Mn 2000–3100 | Granule or powder | PP/PE film, tape, fibra | 0.1–0.6% |
| Sunlight® 770 | Monomeric HALS | 480.7 | White powder or granule | Thick PP, Educação Física, estirênico | 0.1–0,5% |
| Sunlight® 622 | Polymeric HALS | Mn 3100–4000 | Powder or granule | PE film, PP fiber | 0.1–0.6% |
| Sunlight® 119 | High-MW HALS | 2286 | White powder or granule | Thin PP/PE articles, long outdoor life | 0.1–0,5% |
| SUNSORB® 326 | Benzotriazole (Cl) | 315.8 | 138–141 °C | PP, Educação Física, PVC, adesivos | 0.1–0,5% |
*Starting points for trials, not fixed recommendations. The right level depends on part thickness, pigmentos, enchimentos, agrochemical exposure and target service life. Combining a HALS with a UV absorber is usual for outdoor use.
Embalagem & armazenar
Embalagem
25 kg net bags or cartons with a PE inner liner. Palletized; private-label packing on request.
Storage
Keep sealed in a cool, seco, ventilated place away from heat and direct sun. See the SDS for full handling details.
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
Note the climate, the expected service life and your weathering test (xenon or QUV hours, retained elongation, gloss or ΔE). For agricultural film, list the pesticides and fumigants the film will meet.
Pick molecular weight for the part
Low-MW HALS move to the surface quickly and suit thick parts; polymeric HALS resist loss from thin films and fibers. Many outdoor packages blend both.
Check interactions
HALS are basic and can interact with acidic additives, halogenated flame retardants, some pigments and sulfur-containing antioxidants. Send your full formulation so we can flag conflicts before the trial.
Lock in supply terms
Agree physical form (powder or granule), embalagem, monthly volume and documents up front. A matching CAS number alone does not qualify a new source; run your weathering test and keep the approved lot COA as the reference.
Diga-nos sua necessidade. Nós combinamos a nota.
Start with your material, part thickness, quantidade e destino. Add your current stabilizer package and we will quote against it.
| Information | Example |
|---|---|
| Polymer / Material | PP, Educação Física, abdômen, composto, lote mestre |
| Aplicativo | Injection molding, extrusão, filme, fibra |
| Current additive | Grade or supplier you use today |
| Required specification | Your TDS, COA or key limits |
| Quantity | Trial order / monthly / annual volume |
| Embalagem | Standard 25 kg or specific requirement |
| Destination | Country and port |
| Documents needed | COA, FDS, ALCANÇAR, food-contact statement |
Related products
Estabilizador de luz 944 Perguntas frequentes
944 ou 622?
Both are polymeric HALS. 944 is the higher-performance general standard; 622 has lower basicity and is often chosen for food-contact or where interactions with acidic components are a concern.
What dosage is typical in agricultural film?
0.2–0.6% depending on gauge, climate and target seasons, often with a UV absorber.
Is it compatible with pesticides?
Enxofre- and halogen-containing agrochemicals can reduce HALS performance. Tell us the chemicals used and the target life.
Can I get a sample before ordering?
Sim. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.
What if a COA does not match our agreed specification?
Send us the agreed specification and the COA showing the difference (parameter, unit and test method). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.
