Antioxidants & HALS Supplier

As an antioxidant supplier and HALS specialist, SYCHEM TECH offers high-performance polymer anti-aging additives from leading global manufacturers. We supply primary & secondary antioxidants and hindered amine light stabilizers (HALS) for polyolefins, engineering plastics, coatings, and more.

Primary Antioxidants Secondary Antioxidants Hindered Amine Light Stabilizers UV Absorbers Customized Blends
RL

Rianlon — RIANOX® AntioxidantsTianjin, China · Stock: 300596

Rianlon is a globally leading provider of anti-aging additives for polymer materials. The RIANOX® product line covers primary (phenolic) and secondary (phosphite/thioester) antioxidants for polyolefins, engineering plastics, elastomers, coatings, and lubricants.

 Primary Antioxidants (Hindered Phenolic)
Primary AO

RIANOX® 1010

CAS 6683-19-8
Most widely used high MW hindered phenolic antioxidant. Very low volatility, excellent extraction resistance.
PEPPABSPAPU
 Primary AO

RIANOX® 1076

CAS 2082-79-3
A widely used hindered phenolic primary antioxidant with excellent processing stability.
PEPPPSABS
 Primary AO

RIANOX® 3114

CAS 27676-62-6
High MW phenolic AO. Odorless, stable to light. Excellent compatibility, high extraction resistance, low volatility.
PEPPPAPVCSBSEPDM
 Primary AO

RIANOX® 1790

CAS 40601-76-1
High performance trisphenol-class antioxidant with cyanuric acid central moiety.
PEPPEng. Plastics
 Primary AO

RIANOX® 330

CAS 1709-70-2
Hindered phenolic AO with good compatibility and water extraction resistance. For polyolefins and polyamides.
PolyolefinPA
 Primary AO

RIANOX® 245

CAS 36443-68-2
Asymmetric hindered phenolic AO. Odorless, low volatility, excellent compatibility with broad polymer range.
PEPPPAPUEPDM
 Primary AO

RIANOX® 1135

CAS 125643-61-0
Active liquid hindered phenolic AO for polyols, polyurethanes, and lubricants. Pumpable liquid form.
PUPolyolsLubricants
 Primary AO

RIANOX® 1520

CAS 110553-27-0
Multifunctional liquid phenolic AO for processing and long-term thermal stabilization of elastomers and plastics.
SISSBSPUElastomers
 Secondary Antioxidants (Phosphite / Thioester)
Secondary AO

RIANOX® 168

CAS 31570-04-4
Most widely used phosphite ester antioxidant. Excellent hydrolytic stability, high temperature performance.
PEPPABSPC
 Secondary AO

RIANOX® 626

CAS 26741-53-7
Highly effective phosphite secondary antioxidant for polymer stabilization.
PEPPPA
 Secondary AO

RIANOX® DSTP

CAS 693-36-7
Thioester secondary antioxidant for long-term thermal stability in polyolefins.
PEPPABS
 Secondary AO

RIANOX® DLTP

CAS 123-28-4
Thioester secondary antioxidant with excellent performance in polymer thermal stabilization.
PEPP
SABO

SABO — SABOSTAB® UV HALSLevate, Italy · Global HALS Leader

SABO S.p.A. is one of the world’s largest HALS manufacturers. SABOSTAB® UV products extend polymer lifetimes, provide UV protection, and enhance surface performance across agriculture, automotive, packaging, and construction applications.

 Ester HALS — Low MW, High Mobility
Ester HALS

SABOSTAB® UV 70

Low MW ester HALS delivering very high radical-scavenging efficiency. The benchmark choice for surface protection of thick-section injection-moulded PP and impact-modified PP (TPO) — prevents gloss loss, chalking and colour shift in automotive bumpers, fascias and garden furniture exposed to long-term outdoor weathering.
PP Thick SectionsTPOAutomotiveOutdoor Furniture
Ester HALS

SABOSTAB® UV 91

Ester HALS optimised for surface protection of thick-section injection-moulded PP parts. Provides excellent UV stability and long-term colour retention for automotive exterior components and outdoor construction profiles. Works synergistically with UV absorbers to maximise weathering durability.
PP Injection MouldingTPOAutomotive ExteriorOutdoor Construction
Ester HALS

SABOSTAB® UV 65

Preferred liquid ester HALS for non-polyolefin polymer systems. Its low alkalinity prevents interference with acid-catalysed crosslinking and minimises pigment interactions. Effective in both solvent-based and water-borne formulations — an outstanding choice for 2K polyurethane coatings, ABS/styrenic parts, flexible PVC plastisols, adhesives and sealants.
2K PU CoatingsABS / PSFlexible PVCAdhesives & Sealants
Ester HALS

SABOSTAB® UV 62

Very high MW oligomeric ester HALS with extremely low migration and volatility. The recommended stabilizer for thin PE and PP films, fibers and tapes where extraction resistance is paramount. Also highly effective in carbon-black-filled systems and formulations containing halogenated flame retardants, where conventional HALS activity is reduced.
PE / PP Films & TapesFibersCarbon Black SystemsFR Compounds
Ester HALS

SABOSTAB® UV 26

Liquid PolyOxyEthylene (POE) ester HALS specifically designed for liquid formulated systems. Easily dispersible in water-borne coatings and aqueous masterbatch dispersions without additional emulsifiers. Ideal for PU dispersions, flexible PVC, acrylic sealants and liquid colour concentrates where a water-compatible stabilizer is required.
PU DispersionsFlexible PVCAcrylicsLiquid Masterbatch
 Amino HALS — High MW, Oligomeric
Amino HALS

SABOSTAB® UV 94

Broadest application range among triazine-based high MW amino HALS. Its polymeric structure delivers excellent low volatility and migration resistance — the go-to stabilizer for PE and PP agricultural films, PP fibers and tapes, TPO automotive parts, and thermoplastic elastomers requiring simultaneous long-term UV protection and heat stability.
PE / PP Agri FilmsPP Fibers & TapesTPO AutomotivePA FiberTPE
Amino HALS

SABOSTAB® UV 119

Methylated (Me-HALS) with uniquely low interaction with acidic agrochemicals, pigments and fillers. Essential for multi-season agricultural greenhouse films where pesticide residues deactivate conventional HALS. Also the preferred choice for talc-filled PP automotive parts, artificial turf and building & construction membranes exposed to soil contact and acidic environments.
Agri Greenhouse FilmArtificial TurfTalc-filled PPB&C Membranes
Amino HALS

SABOSTAB® UV 40

Product of choice for very fine denier PP and PA fibers where conventional HALS causes melt flow disruption or filter build-up during spinning. Excellent melt flow control and low pigment interaction ensure consistent spinnability and colour quality in dope-dyed yarns for outdoor textiles, geotextiles and nonwovens.
PP / PA Fine FibersNonwovensGeotextilesOutdoor Yarns
UC

Unitechem — Light Stabilizers & HALSSuqian, Jiangsu · Asia’s Largest HALS Manufacturer

Unitechem Group is Asia’s largest HALS manufacturer with 15,000+ tons annual capacity. Products hold REACH full registration for HALS 944, 622, and 770. Serving agricultural films, automotive, coatings, FIBC, and packaging industries.

Product CAS No. Type Key Applications Features
Light Stabilizer 944 71878-19-8 HALS PE, PP, PA, polyolefin films, fibers High MW oligomeric HALS, excellent long-term UV stability. REACH registered.
Light Stabilizer 622 65447-77-0 HALS PE, PP, coatings, adhesives Polymeric HALS with low volatility. REACH registered.
Light Stabilizer 770 52829-07-9 HALS PP, ABS, POM, thick sections, films, tapes Low MW, low volatility, migration resistant, high temp resistance. REACH registered.
Light Stabilizer 783 Blend Blend LDPE / LLDPE agricultural films Blend of two HALS. Very good cost/performance for low-concentration agri-film systems.
Light Stabilizer 119 106990-43-6 HALS PE, PP, polyolefin, engineering plastics High efficiency hindered amine with low volatility.
Light Stabilizer 791 — Blend PE, PP, agricultural films Synergistic HALS blend for enhanced UV protection.
Light Stabilizer LS-123 — NOR HALS Coatings, inks, formulated systems NOR-type structure. Low alkalinity, excellent acid resistance. Cross-links in coatings.
Light Stabilizer LS-3853 — HALS PP, PE, broad polymer range Low MW HALS with excellent compatibility.

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Your Antioxidant Supplier in China

Antioxidant supplier — primary and secondary antioxidants and HALS light stabilizers from SYCHEM TECH

SYCHEM TECH is an antioxidant supplier based in Shenyang, China, offering primary hindered-phenolic and secondary phosphite/thioester antioxidants, hindered amine light stabilizers (HALS), UV absorbers, and customized one-pack blends for polyolefins, engineering plastics, elastomers, coatings, and lubricants. As your formulation development partner, we match the right stabilizer package — process antioxidant, long-term thermal stabilizer, and light stabilizer — to your resin, color, and service-life targets, and back every grade with a TDS, COA, and REACH/RoHS support. For background, see the overview of polymer stabilizers.

Looking for a reliable antioxidant supplier and HALS partner? Tell us your polymer, processing temperature, and weathering requirement, and our team will recommend a stabilizer blend and arrange samples. Explore our related processing additives — nucleating agents and lubricants — the parent processing additives hub, and the full functional additives range.