Why LS-944 (CAS: 70624-18-9) Is the Smartest Investment You’ll Make in Plastic Protection
Light Destroys Plastics. LS-944 Fights Back.
Plastic is everywhere. In greenhouses. In cars. In packaging. And it’s under attack—by sunlight. UV radiation is silent and ruthless. It cracks. It fades. It kills plastic.
If you’re a buyer responsible for sourcing additives that protect your product’s integrity, then you know this: not all light stabilizers are created equal.
Let’s talk about one that works. One that lasts. One that pays for itself: LS-944.
Meet LS-944: The HALS That Outsmarts the Sun
LS-944 (CAS: 70624-18-9) is not just a light stabilizer. It’s a polymeric HALS (Hindered Amine Light Stabilizer) built to fight back against the sun’s worst. Created for high-performance polymers, LS-944 doesn’t just delay degradation—it stops it cold.
You’ll find it as a white to pale yellow powder. It’s thermally stable, practically non-volatile, and unlike cheap HALS, it won’t migrate or vanish over time. Once it’s in your plastic, it stays there, working 24/7.
What Makes LS-944 the Winner
1. It Outsmarts UV Rays
Sunlight creates free radicals that attack polymer chains. LS-944 neutralizes them instantly, day after day.
2. It Handles the Heat
Injection molding. Extrusion. High-speed thermoforming. LS-944 takes the heat and keeps on protecting.
3. It Mixes with Almost Anything
PP, PE, TPO, TPU, PA, ABS—you name it. LS-944 blends without fogging, bleeding, or side effects.
4. It Doesn’t Wander
Blooming and discoloration are problems with lower-grade HALS. LS-944 stays put.
5. It Plays Well with Antioxidants
Combined with AO-1010 or AO-168, LS-944 provides complete thermal and UV defense.
Real-World Wins: Where LS-944 Delivers Results
Greenhouse Films in Latin America
A film producer switched from a basic HALS to LS-944. Outdoor durability jumped from 12 months to over 24. Complaints fell by 60%. Customers renewed contracts early.
Auto Interiors in Europe
A Tier-1 auto supplier reformulated their dashboard and bumper plastics with LS-944. UV-aging failures dropped. Pass rates improved 8%. Supply chain friction eased.
Nylon Fibers for Outdoor Gear
A textile company needed fade-resistant nylon. LS-944 fixed yellowing issues, extending color vibrancy across seasons.
Cables in Harsh Environments
Polyolefin jacketing infused with LS-944 endured Gulf-region sun and sand. Service life rose 30%. Installers noticed the difference.
LS-944 Checks All the Boxes
- ✅ REACH registered
- ✅ RoHS compliant
- ✅ FDA 21 CFR approved
- ✅ SVHC-free
Whether you’re making packaging, automotive parts, or agricultural plastics—LS-944 is safe, tested, and accepted globally.
How to Use LS-944
- Packaging: 25kg paper bags with PE liners
- Dosage: 0.1% to 0.5% depending on your application
- Storage: Cool, dry, out of direct sunlight
No special handling. No headaches. Just performance.
Compare It Yourself
| Property | LS-944 | LS-770 | LS-622 |
|---|---|---|---|
| Molecular Weight | High | Medium | Low |
| Volatility | Very Low | Medium | High |
| UV Resistance | Excellent | Good | Moderate |
| Cost-Performance Ratio | High | Medium | Medium |
| Polymer Compatibility | Broad | Limited | Limited |
LS-944 doesn’t just compare well—it outperforms. Especially in long-life, high-value products.
My Experience: Two Clients, One Conclusion
Case One: Outdoor Furniture in Europe
One client came to us in crisis. Their PP-based chairs were chalking and cracking within a year. After switching to LS-944, product life tripled. Warranty claims dropped to nearly zero. “Best move we ever made,” the buyer said.
Case Two: Agricultural Films in the Middle East
Another client wanted more than price competitiveness—they wanted performance. With LS-944, their film stayed tough and clear for two growing seasons. Their market share rose 15%.
LS-944 turns problems into profit.
B2B FAQs: Quick Answers for Smart Buyers
Q: Is LS-944 a replacement for Tinuvin 944?
A: Yes. It performs similarly at a more competitive cost.
Q: Is it food-contact safe?
A: Yes. It complies with FDA 21 CFR. Always confirm with your supplier.
Q: Can I get REACH documentation?
A: Of course. Pre-registration and supporting documents are available.
Ready to Stop UV Damage Before It Starts?
LS-944 is more than an additive. It’s an asset. It gives your plastic products strength, longevity, and peace of mind.
Don’t settle for mediocre. If your customers demand durability, give them the best.
Ask us for samples, formulation tips, and technical data. Let’s make your product last.
