Easy dispersion
Melts at 50–55 °C, so it mixes evenly in film, fiber and low-temperature compounding.
SUNNOX® 1076
Antioxidant 1076 Supplier for Polymer Stabilization
SUNNOX® 1076 is a non-staining hindered phenolic primary antioxidant. Its low melting point makes it easy to disperse in film, fiber and low-temperature compounding, where it gives long-term thermal protection.
CAS 2082-79-3 · Hindered phenol · Primary antioxidant
- Lot COA with every shipment
- Samples for your trials
- Technical support for your trial
Product overview & key benefits
Antioxidant 1076 scavenges the free radicals that drive thermal oxidation in plastics, elastomers and adhesives. Compared with 1010 it has a lower molecular weight (530.9) and melts at 50–55 °C, so it blends readily into polyolefin film, PVC and hot-melts. It is normally combined with a phosphite such as 168 for processing stability, and with a thioester such as DLTDP for long-term heat aging.
Non-staining
Good color and low odor in finished parts, with resistance to water extraction.
Synergy with 168 and DLTDP
Pairs with phosphites for processing stability and with thioesters for long-term heat aging.
Technical specifications
| Parameter | Typical value |
|---|---|
| Product Name | Antioxidant 1076 |
| Brand | SUNNOX® 1076 |
| CAS No. | 2082-79-3 |
| Chemical Name | Octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate |
| Molecular Formula | C35H62O3 |
| Molecular Weight | 530.9 |
| Appearance | White crystalline powder |
| Melting Point | 50–55 °C |
| Content | ≥98.0% |
| Volatile Matter | ≤0.2% |
| Ash | ≤0.1% |
| Light Transmittance — 425 nm | ≥97% |
| Light Transmittance — 500 nm | ≥98% |
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 Polymer
Pick an application to see how 1076 is normally used and what to confirm before your trial.
Polyolefin Film & Fiber
The main use of 1076. Typically 0.05–0.3%, often as 168:1076 blends for film where easy dispersion matters.
Check before trial
- Resin grade and process (film, fiber, molding, pipe)
- Processing temperature and number of passes
- Current antioxidant package and dosage
PVC, ABS & Styrenics
Used as a co-antioxidant in PVC and styrenic compounds to limit heat yellowing during processing.
Check before trial
- Compound type and existing stabilizer system
- Processing temperature
- Color target after molding
Hot-melts, Adhesives & Elastomers
Protects EVA, SBS and polyolefin hot-melts and elastomers from oxidation in the melt tank and in service.
Check before trial
- Base polymer and tackifier
- Melt-tank temperature and holding time
- Color stability target
Selection & comparison
Selecting an Antioxidant System
| Your requirement | What usually works |
|---|---|
| Color and melt-flow stability during extrusion or molding | Phosphite secondary antioxidant (168) with a phenolic primary |
| Long-term heat aging in service | High-MW phenolic primary (1010), often with a thioester (DLTDP / DSTDP) |
| Thin film, fiber, low-melting compounding | Lower-melting phenolic (1076) for easy dispersion |
| Repeated processing / recycled content | Raise the phosphite share in the blend and check yellowing after each pass |
| Humid storage or long transit | Hydrolysis-resistant phosphite such as 168; keep bags sealed |
| Food-contact articles | Ask for the grade-specific food-contact statement before trials |
| Replacing an existing grade | Send your current TDS or COA; we match on the parameters you approve |
Antioxidant Comparison
Swipe or scroll horizontally to see all columns →
| Product | Type | Mol. weight | Melting point | Main job | Typical starting level* |
|---|---|---|---|---|---|
| SUNNOX® 1076 | Hindered phenol · primary | 530.9 | 50–55 °C | Long-term protection, easy dispersion | 0.05–0.3% |
| SUNNOX® 1010 | Hindered phenol · primary | 1177.6 | 110–125 °C | Long-term thermal protection | 0.05–0.3% |
| SUNNOX® 168 | Phosphite · secondary | 646.9 | 183–187 °C | Processing stability, color | 0.05–0.2% with a phenolic |
| SUNNOX® DLTDP | Thioester · secondary | 514.8 | 38–42 °C | Heat-aging synergist | 0.1–0.3% with a phenolic |
| SUNNOX® 245 | Hindered phenol · primary | 586.8 | 76–79 °C | Styrenics, POM, PA, PU | 0.1–0.3% |
*Starting points for trials, not fixed recommendations. The right level depends on resin, catalyst residue, processing temperature and service life. Primary and secondary antioxidants do different jobs and are not interchangeable.
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.
From first email to approved supply
Name the failure you want to prevent
Yellowing or melt-flow change during processing points to the phosphite share; embrittlement or cracking after months in service points to the phenolic and thioester share. Note recycled content and the number of extrusion passes.
Start from a proven blend
Most polyolefin packages start from a phenolic primary plus a phosphite secondary, then adjust. Send your current package and we suggest a starting blend for the trial instead of changing several variables at once.
Compare the numbers that matter
For powders: assay, melting range, volatiles and light transmittance at 425/500 nm (a direct read on color). Ask for the same parameters on our COA that appear on your incoming-inspection sheet.
Lock in supply terms
Agree packaging, monthly volume, destination port and required documents up front. A matching CAS number alone does not qualify a new source; run your trial and keep the approved lot COA as the reference.
Tell us your requirement. We match the grade.
Start with your polymer, quantity and destination. Add your current grade or specification 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 products
SUNNOX® 1010
High-MW hindered phenolic primary antioxidant for long-term thermal protection with low volatility.
View product →SUNNOX® 168
Hydrolysis-resistant phosphite secondary antioxidant for color and melt-flow protection during processing.
View product →SUNNOX® DLTDP
Thioester secondary antioxidant that boosts long-term heat aging when used with a phenolic.
View product →SUNNOX® 245
Phenolic antioxidant favored for HIPS, ABS, POM and PA, with good color retention.
View product →Antioxidant 1076 FAQ
1076 or 1010: which should I choose?
Choose 1076 when easy dispersion and low-temperature processing matter (film, PVC, hot-melts). Choose 1010 when you need the lowest volatility and extraction for long service at high temperature.
What dosage of 1076 is typical?
0.05–0.3% in most polyolefins, usually with 168 for processing stability. Confirm the level in your own trial.
Is 1076 used in food-contact applications?
Yes, it is widely used in food-contact polymers. Ask us for the grade-specific food-contact statement for your market.
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.
