XT-8 High Molecular Weight NOR Light Stabilizer
High Molecular Weight N-OR (NOR) Light Stabilizer · Built for Demanding Agricultural Films · Pesticide & Acid Resistant
A high-performance alternative to BASF Tinuvin® NOR 371 — proven by 38-month greenhouse field trials with over 50% mechanical property retention.
Key Advantages
N-OR structure does not react with acidic substances; resists sulfur 3000–7000PPM and chlorine ≤850PPM, solving the premature greenhouse-film failure problem.
Used alone or combined with HS-625, real greenhouse field trials reached 38 months with mechanical property retention above 50%.
Awarded a globally unique CAS number by the American Chemical Society; REACH and TSCA registered.
High molecular weight with low basicity, low migration and good processing compatibility.
Product Description
Tiangang® XT-8 is a state-of-the-art high molecular weight N-OR (NOR) hindered amine light stabilizer based on NOR technology, effectively protecting agricultural films against the degradation caused by sulfur compounds and other agrochemicals. Its unique structure does not interact with acidic substances, delivering outstanding performance in harsh environments with acid rain, pesticides, insecticides and herbicides. It solves the premature failure of conventional light stabilizers in acidic conditions, significantly extending greenhouse film service life, reducing grower costs and cutting waste.
Features
- High molecular weight N-OR (NOR) structure, representing international advanced level
- No interaction with acidic substances; resists sulfur 3000–7000PPM and chlorine ≤850PPM
- 38-month greenhouse field trial with over 50% mechanical property retention
- Low basicity, low migration, good processing compatibility
- Can be used alone or combined with Tiangang® HS-625
Comparison vs BASF Tinuvin® NOR 371
| Property | Tiangang® XT-8 | BASF Tinuvin® NOR 371 |
|---|---|---|
| Chemical type | High MW N-OR (NOR) HALS | High MW NOR HALS (triazine derivative, MW 2800–4000) |
| Pesticide resistance | Sulfur 3000–7000PPM, chlorine ≤850PPM | Pesticide / insecticide / soil disinfectant resistant |
| Field trial | 38 months, >50% retention | — |
| Chemical structure | Unique, CAS-numbered | Standard |
| Compliance | REACH + TSCA registered | Standard |
Applications
- Greenhouse films
- Mulch films
- Agricultural non-woven fabrics
- Artificial turf
- Other agricultural plastics exposed to pesticides or acidic substances
Recommended Dosage
Greenhouse films 0.2% – 1.6%, mulch films 0.2% – 1.0% (reference range for NOR-type stabilizers). The exact dosage should be determined experimentally based on film thickness, service life, region and pesticide usage.
Compliance & Certification
- Globally unique CAS number awarded by the American Chemical Society
- REACH registered, TSCA registered
- China-originated innovative high molecular weight HALS
Request Samples / TDS / Agricultural Film Formulation Support
Contact our technical team for the full TDS, SDS and application-specific weatherability recommendations. Contact us now →
Light Stabilizer for Plastics
Light Stabilizer for Coatings
