Factory-Direct Quality
Produced in our own ISO 9001:2015 certified plant with in-house HPLC/GC quality control on every batch. COA and retention samples provided with each shipment.
ISO 9001 : 2015 Certified Manufacturer
UV Curing Additives & Polymer Protection Solutions
Manufacturer of photoinitiators, light stabilizers, UV absorbers, flame retardants and antioxidants — supplying formulators in coatings, inks, adhesives, electronics and plastics in 40+ countries.
60+Specialty products
40+Export countries
15+Years of experience
12,000 tTonnes annual capacity
Our Product Range
Five core additive families for UV-curable systems and polymer durability — available in commercial quantities with full regulatory documentation.
Photoinitiators
Type I & Type II initiators, oxime esters, cationic PAGs — 34 grades for every curing line
View All (34)
Light Stabilizers (HALS)
Hindered amine light stabilizers from monomeric and liquid to ester-type and oligomeric grades
View All (11)
UV Absorbers
Benzotriazole, benzophenone, triazine, benzoate and benzoxazinone — 16 grades
View All (16)
Flame Retardants
Reactive & additive phosphorus flame retardants, halogen-free focus
View All (7)
Antioxidants
Primary phenolic & secondary phosphite antioxidant systems
View All (4)Why Formulators Choose Aolong
From lab-scale sampling to full-container shipments, we support your development cycle with consistent quality and responsive technical service.
Regulatory Ready
REACH pre-registration and full export documentation — TDS, MSDS, COA and non-radioactive declaration — prepared for smooth customs clearance in the EU, Americas and Asia.
Technical Support
Our application engineers help you select photoinitiator packages, HALS/UV absorber combinations and flame retardant grades for your exact substrate and curing line.
Reliable Supply
Stable annual capacity, safety stock of standard grades and flexible packaging from 1 kg samples to 25 kg fiber drums ensure your production never waits.
Industries & Applications
Our additives keep coatings curing faster, plastics lasting longer and electronics safer across demanding industries.
Latest News & Insights
Company updates, industry trends and technical articles from our R&D team.
The Complete Polymer Additives Selection Guide
Antioxidants, UV absorbers, HALS and flame retardants — how the four families interact and how to match them to your resin and exposure.
Read More
Aolong Chemical Launches Dedicated UV-LED Photoinitiator Production Line
The new line triples our TPO and 819 capacity, with dedicated low-moisture packaging for LED-curing grades.
Read More
REACH Compliance Update 2026: What EU Buyers Need from Their Additive Suppliers
Registration status, SVHC screening and the exact documents to request from your supplier this year.
Read MoreNeed a custom additive solution?
Send us your technical requirements — our engineers will reply with product recommendations, TDS documents and a competitive quotation within 24 hours.