What is this polymeric triazine HALS and how does it compare across HALS grades?
This product (CAS 70624-18-9) is a high-molecular-weight polymeric triazine-piperidine hindered-amine light stabilizer. Its polymeric backbone strongly resists volatilization and extraction, favoring long-term durability in polyolefins and thicker sections, in contrast to the low-MW monomeric grades that diffuse faster but migrate more. Bulk quantities are sourced to specification.
- ▸ Long-term UV/light stabilization of polyolefin (PP/PE) films, fibers and molded parts
- ▸ Low-volatility HALS for agricultural and greenhouse films needing extended outdoor life
- ▸ Light stabilization of TPE, PU, PA and PS
- ▸ Weathering protection of thick-section polyolefin parts
| Grade | Structure class | CAS No. | Mol. wt (g/mol) |
|---|---|---|---|
| Bis(2,2,6,6-tetramethyl-4-piperidyl) Sebacate | Monomeric | 52829-07-9 | 480.7 |
| Bis(1,2,2,6,6-pentamethyl-4-piperidinyl) Sebacate | Monomeric (liquid) | 41556-26-7 | 508.8 |
| Bis-piperidinyl isophthalamide | Monomeric | 42774-15-2 | 442.6 |
| Monomeric C16-18 piperidinyl ester | Monomeric | 167078-06-0 | — |
| Bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidyl) Sebacate | Monomeric (NOR) | 129757-67-1 | — |
| Oligomeric Triazine Hindered Amine Light Stabilizer | Oligomeric | 192268-64-7 | 684.1 |
| Oligomeric triazine-piperidine | Oligomeric | 106990-43-6 | 2285.6 |
| Dimethyl Succinate / 4-Hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol Polymer | Polymeric | 65447-77-0 | — |
| Polymeric Triazine-Hexanediamine Hindered Amine Light Stabilizer, tert-Octylamino Type you are here | Polymeric | 70624-18-9 | — |
How to choose: HALS are 2,2,6,6-tetramethylpiperidine radical scavengers that regenerate to protect polymers and coatings from UV and thermal oxidation. They are grouped by molecular weight and structure, which sets mobility versus permanence: monomeric grades diffuse quickly for fast protection but migrate and extract more readily; oligomeric and polymeric grades resist volatilization and extraction for long-term durability in thick sections and demanding outdoor exposure. The N-alkoxy NOR-HALS grade carries lower basicity, improving compatibility with acid-cure coatings and flame-retarded or agrochemical-exposed systems where basic HALS can be neutralized.
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A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
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This product is the polymeric triazine hindered amine light stabilizer that is the workhorse for polyolefins — a high-molecular-weight, non-volatile HALS for long outdoor life. Identity: CAS 70624-18-9.
What it is
Polymeric triazine-hexanediamine HALS, tert-octylamino type (CAS 70624-18-9) is a high-molecular-weight polymeric triazine-piperidine solid. Its size makes it non-volatile and highly resistant to migration and extraction, and it is exceptionally effective in polyolefins.
How it protects against UV
It scavenges UV-generated radicals through the regenerated nitroxyl cycle and, being polymeric, stays in the part for the long term. It is frequently combined with a monomeric HALS or a UV absorber for a synergistic package.
Applications
This stabilizer is used in polyolefin (PP/PE) films, tapes, fibers, pipe and outdoor moldings, often with a UV absorber and sometimes a monomeric HALS. Compare the polymeric succinate-piperidine HALS, the dibutylamine-capped triazine HALS and the oligomeric triazine HALS.
Forms, grades and handling
This stabilizer is supplied as a white-to-yellowish polymeric powder/granule in bags and bulk. Properties are typical reference values; the Certificate of Analysis (CoA) for the lot you buy governs. Handle per the current Safety Data Sheet (SDS); each lot ships with CoA, TDS and SDS.
Bulk supply and RFQ
RawSource sources this stabilizer direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your polymer, part thickness and service life, the chemical environment (acidic, flame-retarded, agrochemical), and whether you need a complete UV-absorber-plus-HALS package, and we will quote it. See the full range and selection logic in the HALS guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / class | Hindered amine light stabilizer (polymeric triazine) |
| HALS type | Polymeric (high-MW, triazine) |
| Permanence | Non-volatile; the polyolefin workhorse |
| CAS Number | 70624-18-9 |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU): Not determined from public registry
- EC number: 615-131-4
TSCA Inventory flag XU: a substance exempt from reporting under the Chemical Data Reporting Rule (40 CFR 711) (EPA flag legend).
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is this polymeric triazine HALS used for?
This product (CAS 70624-18-9) is a polymeric triazine hindered amine light stabilizer, the workhorse for UV protection of polyolefin films, tapes, fibers, pipe and outdoor moldings. It is non-volatile and migration-resistant.
Why is this polymeric triazine HALS preferred for polyolefins?
Its high-molecular-weight polymeric triazine structure is non-volatile and highly resistant to migration and extraction, and it is very effective in polyolefins, giving long outdoor life in films, fibers and moldings.
How is this HALS supplied and quoted in bulk?
RawSource supplies this HALS in bulk with CoA, TDS and SDS per lot. Pricing is quote-based on grade and volume; submit an RFQ with your polymer, service life and environment.
What is the REACH and TSCA regulatory status of Polymeric Triazine-Hexanediamine Hindered Amine Light Stabilizer, tert-Octylamino Type (CAS 70624-18-9)?
Polymeric Triazine-Hexanediamine Hindered Amine Light Stabilizer, tert-Octylamino Type (CAS 70624-18-9) is listed as Active on the U.S. EPA TSCA Inventory; its REACH registration status is not determined from the public ECHA registry.