Certifcations

Partners


CHEMGO AG
Florenz-Strasse 9
4142 Muenchenstein
Switzerland
https://www.chemgo.ch/

CHEMGO SARL
1, rue Claude Chappe
69370 St Didier au Mont d‘Or
France
https://www.chemgo.fr/

Description
CHEMGO originated from the merger of Stehelin AG (established in the 1830s) and Chemgo Organica AG (established in 1976) in 2019. CHEMGO now contains a distribution and agency business. Since 2001, CHEMGO is a member of the London Pharma & Chemicals Group (www.lpc-grp.com), which has businesses and offices in several European countries.

CHEMGO has two entities:
  • CHEMGO AG, headquartered just outside of Basel, the heart of the Swiss life science industry, to service North and East part of Europe.
  • CHEMGO SARL in France to service South and West part of EU markets. The office is located in Lyon.

The agency business contains the promotion and sales of a wide range of fine chemicals, mostly for synthesis applications in life sciences and related industries. This activity covers all of Europe, as CHEMGO represents partners in several European countries, India and the US.

CHEMGO’s distribution business services mostly specialty chemicals, analytical, environmental and medical laboratories with various products and equipment. The distribution business is focused on Switzerland.

CHEMGO has exclusive arrangements with leading partners in the corresponding fields and covers a wide range of products, equipment and services.

CHEMGO is SwissMedic audited, authorized for GDP (good distribution practice) and has a limited license to trade with controlled substances.

Remarks
Chemgo represents Sarex in all European countries for fine chemicals & pharmaceutical Intermediates.
The electronic product ROC-107 and all Triazine products are not covered by the Chemgo representation.

Clients

Blogs

How Triazines Make Automotive Coatings More Weatherproof: Mechanism, Dosage and Test Data

DateApr 10, 2026

Sarex is a top bulk manufacturer and exporter of high-quality Triazines made just for high-performance automotive coatings. Choose them for the best weather resistance, longer life and the best chemical solutions in the business.

...

Automotive coatings protect cars from harsh weather while also keeping them looking good. Paint systems slowly break down when they are constantly exposed to UV radiation, changes in temperature and moisture. This causes the paint to fade, crack and lose its shine. Triazines are new UV absorbers that make modern automotive coatings much more weather-resistant. They are essential for improving the long-term performance and durability of coatings because they have better photostability, optimal dosage efficiency and test data that shows they work.




Learning About Weatherability in Automotive Coatings

Weatherability is the ability of a coating to stay looking good and working well even when it is exposed to stress from the environment. The main cause of degradation is ultraviolet radiation, especially UVA (320–400 nm) and UVB (280–320 nm). These high-energy rays cause UV damage, photo-oxidation and the breakdown of polymers.

  • Because of this, coatings go through:
  • Less shine and colour fading
  • Cracking and chalking on the surface
  • Separation and loss of adhesion
  • Shorter life of the coating

Automakers use Triazines in clearcoat systems to deal with these problems. These stabilisers make photostability better, keep light stable and protect polymer structures from damage from the environment over time.

What Are Triazines and How Do They Work?

Triazines, especially hydroxyphenyl triazine UV absorbers, are high-performance additives that are made to protect against a wide range of UV rays. They are well-known for their high thermal stability and low volatility and they are often used in automotive coatings to make them more weather-resistant.

Some of the main benefits are:

  • Absorbs UVA and UVB radiation over a wide range
  • High extinction coefficients for good UV protection at low levels
  • Works well with acrylic, polyurethane and epoxy coatings
  • Better at stopping migration and volatilisation
  • Excellent stability of polymers and long-lasting coatings

Triazines work better than traditional benzotriazole and benzophenone UV absorbers, which is why they are the best choice for OEM automotive coatings and refinish coatings.

How Triazines Keep Automotive Coatings Safe?

The advanced UV absorption mechanism of Triazines is what makes them work. These molecules act like shields for coatings, protecting them from damage from the outside world.

  • How UV Absorption Works

Triazine UV absorbers stop harmful UV radiation in the 280–400 nm range from breaking down molecules.

  •  Giving off energy as heat

They turn UV radiation that they absorb into safe heat. This process keeps polymers from breaking their bonds and damaging their structure.

  • Stopping Photo-Oxidation

By stopping free radicals from forming, Triazines stop oxidation, surface degradation and colour instability.

  • Protecting Molecular Bonds

These stabilisers protect chromophores and polymer chains, making them last longer and making them more stable when exposed to light.

Best Dosage and Formulation Guidelines

The right formulation makes sure that everything works as well as possible. Triazines offer good protection at low levels of additives because they have a high extinction coefficient.

Parameter

Recommended Range

Typical Dosage

0.5%–3.0%

UV Protection Range

280–400 nm

Thermal Stability

Up to 300°C

Compatible Resins

Acrylic, Polyurethane, Epoxy

Processing Stability

Excellent

Synergistic Additives

HALS Stabilisers

Also, mixing Triazines with Hindered Amine Light Stabilisers makes the colour last longer, the gloss last longer and the product last longer outdoors.

Performance Benefits of Automotive Coatings

Adding Triazines to automotive paint systems makes them much more weather-resistant and better at what they do.

Some of the main benefits are:

  • Better colour stability and gloss retention
  • Better at not chalking, fading, or coming apart
  • Better mechanical integrity and longer coating life
  • Clearcoat and basecoat systems have great transparency
  • More resistant to damage from UV rays and wear and tear on the surface
  • OEM and refinish coatings that protect for a long time

So, Triazines are very important for keeping modern automotive coatings strong and looking good.

Test Data and Weathering Validation

Industry-standard testing methods that mimic real-world conditions are used to check how well Triazines work.

Tests for Accelerated Weathering

  • QUV Testing: This test mimics cycles of UV exposure and moisture.
  • Xenon Arc Weathering: Copies the way sunlight naturally affects things.
  • Florida Exposure Testing: Tests how well something holds up outside for a long time.
  • UV Spectroscopy and FTIR Analysis: Keep an eye on how stable and how quickly chemicals break down.
  • HPLC Analysis: Checks the stability and performance of additives.

Normal Performance Results

Test Parameter

Standard Coating

With Triazines

Gloss Retention (3000 hrs QUV)

~70%

>90%

Yellowing (ΔE)

High

Minimal

Surface Cracking

Visible

Negligible

UV Stability

Moderate

Excellent

Coating Lifespan

Limited

Extended

 Work with Sarex to Get High-Performance Triazines

Advanced automotive coatings need to be able to protect against things that stress the environment. Triazines protect against a wide range of UV rays, are more stable in light and have been shown to last a long time, making them ideal for tough jobs. They are essential in modern automotive paint systems because they can improve gloss retention, colour stability and the life of the coating.

Sarex is a top bulk manufacturer and exporter of high-quality Triazines made just for high-performance automotive coatings. Choose them for the best weather resistance, longer life and the best chemical solutions in the business.

Read More

Why Triazine Compounds Are Critical for Advanced Chemical Synthesis

DateMar 27, 2026

Sarex is India's one-stop shop for highly effective, cutting-edge fine chemicals and textile chemicals. They are a top bulk manufacturer and exporter that helps industries that need high-purity triazine-based solutions.

...

Some of the most important discoveries in modern chemistry are powered by triazines. They might not make the news. But they are behind the medicines people need, the plastics that last in harsh sunlight, the dyes that don't fade, and even the systems that clean up toxic gases.

A triazine is a six-membered ring made up of three nitrogen and three carbon atoms. That simple structure makes a big difference. Because nitrogen pulls electrons strongly, the ring becomes reactive in a very controlled way. Because of this, chemists can attach other molecules with great accuracy. Because they are stable and reactive at the same time, Triazines are very important in advanced chemical synthesis. Without them, it would take longer, be more dangerous, and be much less effective to build complex molecules.

If your business cares about new ideas, you need to know about Triazines too.

Learning about Triazines Isomers and Structural Power

Not every Triazine acts the same way. The way the ring works changes depending on where the nitrogen atoms are. They are divided into three isomers by scientists:

  • The structure 1,3,5, which is also known as s-triazine, is the same on both sides. It stays very stable and predictable because of this symmetry. This is why it is used a lot in the production of melamine, cyanuric chloride, and reactive dye intermediates. This is the structure to use when consistency is important.


  • In contrast, 1,2,4 triazine has a bigger role in medicine. The slightly uneven placement of nitrogen makes biological interaction better. So, drug makers use it to help them design molecules that fit with certain enzymes or receptors.


  • 1,2,3 triazine, on the other hand, doesn't show up as often. Its higher reactivity, on the other hand, makes it useful for specialised research uses like advanced dyes and sensing materials.

A small change in structure can make a big difference in how well something works. That's what smart molecular design can do.

The Key to Pharmaceutical Breakthroughs

This part will make sense to you if you work in life sciences. Drug discovery needs molecules that bind to biological targets in a very specific way. Chemists call triazines "privileged scaffolds." In simple terms, they work well with the body's biological systems.

Triazine cores are used in medicines like Lamotrigine, Decitabine, and Altretamine. In cancer research, some triazine derivatives inhibit pathways such as PI3K and mTOR. These pathways make tumours grow. Cancer cells slow down when they are blocked.

Triazine-based antivirals have also been useful during viral outbreaks. These molecules stop replication by copying viral genetic material. This means that the spread of infection slows down.

This is not chemistry that is hard to understand. This is molecular precision that saves lives.

UV Stabilisers and Protection for Polymers

Plastics and coatings are always exposed to UV light. Over time, UV light breaks down chains of polymers. Things break, colours fade, and surfaces crack.

Triazine-based UV absorbers stop that from happening. They take in UV energy and safely release it as heat. The molecule stays stable, which is important because it can repeat the process.

Because of this durability, the interiors of cars, building materials, and agricultural films stay strong for years. If how long a product lasts affects how people see your brand, triazine stabilisers are very important but not very loud.

Oil, Gas, and Environmental Uses

Hydrogen sulphide makes oil and gas operations very difficult. It eats away at equipment and puts safety at risk.

Hydrogen sulphide reacts quickly with liquid triazine scavengers. They change it into stable compounds that are easy to get rid of. Because of this, pipelines last longer and the risks to the environment go down.

Covalent Triazine Frameworks help with research on hydrogen storage and photocatalysis in addition to fossil fuels. These porous materials are very good at trapping gases. Scientists also look into them for making hydrogen from sunlight and purifying water.

There is no end to innovation. It changes. And Triazines change with it.

Conclusion

For advanced chemical synthesis to work, it needs to be reliable, pure, and effective. Triazines are the building blocks that make high-value chemistry possible. Their effects are felt in almost every industry, from medicine to materials to energy solutions.

Sarex is India's one-stop shop for highly effective, cutting-edge fine chemicals and textile chemicals. They are a top bulk manufacturer and exporter that helps industries that need high-purity triazine-based solutions.

Read More

Frequently Asked Questions

Why Triazine is better to use?

A Triazine UV absorber has excellent properties. In addition, the dosage you need to put into your polymer is usually lower compared to other UV absorbers.

What types of Triazine Product do you offer?

Triazine Exists in three Isomeric forms, we offer 1,3,5-triazine , as its being the most common and widely used Triazine isomeric form to manufacture chemical worldwide.

In which industries Triazine products can be used?

We offer Triazine product industry wise i.e., POLYMER ADDITIVE, COATING, TEXTILE INDUSTRY, PERSONAL CARE & COSMETIC, PHARMACEUTICAL INTERMEDIATES, and ELECTRONIC INDUSTRY

Why are UV Absorbers Used for Coatings?

UV absorbers improves the colour fastness and the durability of the coatings. The coated surface which is exposed to the Sun light is susceptible to degradation due to UV rays of the Sunlight. UV absorber additive in the coating protect it from the UV rays of the Sun.

What is your approach to sustainability and environmental responsibility?

We have been awarded the prestigious EcoVadis Gold Certificate, a testament to our unwavering commitment to sustainability and responsible business practices. The Gold certification shows that we take our social responsibility very seriously.

What procedure should I follow to enquire for Fine Chemical?

You can enquire by simply filling out our contact us & enquiry form. You need to mention your fine chemical related products in the message box.

What is EHS policy?

EHS policy stands for Environment, Health & Safety policy. It refer to rules & regulations to protect the health and safety of employees and the public as well as the environment from hazards associated with the workplace.

What is the quality assurance process for your fine chemicals?

We are accredited ISO 9001:2015, ISO 14001:2015, ISO 45001: 2018 for Quality, health and environment

Quality is assured by highly trained personnel of Quality assurance and Quality control department.

We have regularly calibrated quality control instruments for quality assurance. For detailed information, please refer to the PDF document available here. Download PDF

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