Two functions
Light stabilizer and antioxidant in one molecule.
HALS 144 Light Stabilizer Supplier for Coatings
SUNLIGHT® 144 is a hindered amine light stabilizer that carries a phenolic antioxidant group in the same molecule. It is used in powder coatings, automotive coatings and some plastics for combined light and heat stability.
CAS 63843-89-0 · HALS with phenolic group
Product Overview
HALS 144 (bis(1,2,2,6,6-pentamethyl-4-piperidyl) [[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butylmalonate) combines a hindered amine and a hindered phenol, so it protects against both UV and thermal oxidation. As a solid it suits powder coatings and is also used in automotive coatings and selected plastics.
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
Key Benefits
Powder coatings
Solid form suits powder coating formulations.
Heat and UV
Protects during bake and in outdoor service.
Technical Specifications
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
| Parameter | Typical value |
|---|---|
| Product Name | Light Stabilizer 144 |
| Brand | SUNLIGHT® 144 |
| CAS No. | 63843-89-0 |
| Chemical Name | Bis(1,2,2,6,6-pentamethyl-4-piperidyl) [[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]butylmalonate |
| Molecular Formula | C42H72N2O5 |
| Molecular Weight | 685.0 |
| Appearance | White powder |
| Melting Point | 146–150 °C |
Applications by Material
Pick an application to see how 144 is normally used and what to confirm before your trial.
Powder Coatings
Typically 0.5–2% on binder with a UV absorber.
What to confirm for your application
- Resin system
- Bake schedule
- Outdoor durability target
Automotive Coatings
Used in automotive coatings for UV and heat stability.
What to confirm for your application
- Coating type
- Bake conditions
- UV absorber used
Selected Plastics
Used in some plastics where combined light and heat stability helps.
What to confirm for your application
- Polymer
- Processing temperature
- Exposure
Packaging & Storage
Packaging
25 kg net bags or cartons with a PE inner liner. Palletized; private-label packing on request.
Storage
Keep sealed in a cool, dry, ventilated place away from heat and direct sun. See the SDS for full handling details.
Lead time & terms
Typically 3–15 business days from order confirmation, depending on quantity. FOB, CIF or DAP to major ports.
Technical & Buying Information
Light Stabilizer 144 Buyer Guide
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), packaging, 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.
Request a Quotation for Light Stabilizer 144
Start with your material, part thickness, quantity and destination. Add your current stabilizer package and we will quote against it.
| Information | Example |
|---|---|
| Polymer / Material | PP, PE, ABS, compound, masterbatch |
| Application | Injection molding, extrusion, film, fiber |
| Current additive | Grade or supplier you use today |
| Required specification | Your TDS, COA or key limits |
| Quantity | Trial order / monthly / annual volume |
| Packaging | Standard 25 kg or specific requirement |
| Destination | Country and port |
| Documents needed | COA, SDS, REACH, food-contact statement |
Related Light Stabilizers
SUNSORB® 400
Hydroxyphenyl-triazine liquid UV absorber for durable automotive and industrial coatings.
View product →Light Stabilizer 144 FAQ
Why choose 144 for powder coatings?
It is a solid, so it suits powder formulations, and its built-in phenolic adds heat stability during baking.
What dosage is typical?
0.5–2% on binder with a UV absorber.
Does it replace a separate antioxidant?
It contributes antioxidant action, but some systems still use a separate antioxidant. Send your formulation for advice.
Can I get a sample before ordering?
Yes. 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.
Discuss Your Light Stabilizer 144 Requirements
Send your application, specification and quantity to request a quotation or supporting documents.