Center National for Evaluation of Photoprotection

Bridge between research and industries
We assist companies, research organizations and innovation centers in their problems and projects on polymer materials


customers worldwide


studies by year


years of research


cases studied

What can we do for you?

Since its creation in 1986, the CNEP has been guiding you to effectively control the durability or degradation of your polymer products and materials.We can also answer to your requests for characterizations or failure expertise.

Our offers and services

We are listening to you

Durability and ageings

Our core business: photochemical, thermal, hydrolytic agings and weatherings..

Analysis and characterizations

Chemical analyzes of formulations Measurements of levels of anti-UV or antioxidant additives (Tinuvin 770, Chimassorb 944, etc.), levels of pigments, fillers, etc...

Failures and damages

Demonstration of damage visually or chemically allowing understanding of the phenomena

Expertises and checkings

Sapper and scientific expert for insurance companies, courts for any request for chemical damage expertise

Standards and specifications

Creation of Standards for formulated Polymer Materials and their uses

Advices and trainings

On the strength of its Studies and Research, the CNEP, in partnership with the Laboratories, provides Knowledge Sharing Days for members of Companies interested in the Durability of Polymer-based Materials

Our main areas of activity

More than 500 studies and research projects per year
Buildings and public works


Electricity and telecommunications
Sports and leisures





they trust us

The clients who call on our services are mostly large international groups, but also national or local companies, consulting firms or R&D laboratories, as well as project developers or craftsmen

some examples among our 450 customers
and our partners

Certifications and accreditations

Always concerned about the quality of our analyzes and the reliability of our scientific data, the CNEP has many accreditations or certifications recognized worldwide.

ISO 9001

Certification ISO 9001 - version 2015

D15 3200A

Accreditation RENAULT ME D153200A


Centre de Ressources technologiques

Accélérateur chimie-plasturgie

The CNEP has been selected to participate in this program

News and information

Supply of lamps for SEPAP 12.24 photoaging chambers

In order to prevent users of SEPAP 12-24 from having their tests suddenly stopped, the CNEP proposes to support them

More informations?

Do not hesitate to contact us

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Centre National d'Evaluation de Photoprotection

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We will answer as soon as possible

Summer break

The CNEP will be in very reduced activity from August 10 to 15, 2020, contact us preferably after this period.
Thank you

La certification ISO 9001 - 2015

L'ISO 9001:2015 spécifie les exigences relatives au système de management de la qualité lorsqu'un organisme:

a) doit démontrer son aptitude à fournir constamment des produits et des services conformes aux exigences des clients et aux exigences légales et réglementaires applicables, et

b) vise à accroître la satisfaction de ses clients par l'application efficace du système, y compris les processus pour l'amélioration du système et l'assurance de la conformité aux exigences des clients et aux exigences légales et réglementaires applicables.

Toutes les exigences de l'ISO 9001:2015 sont génériques et prévues pour s'appliquer à tout organisme, quels que soient son type ou sa taille, ou les produits et services qu'il fournit.

Obtenir la certification ISO 9001:2015, c’est s’appuyer sur 8 principes de management :
• l’orientation client ;
• l’implication du personnel ;
• l’approche processus ;
• l’amélioration continue ;
• la gestion par approche système ;
• le leadership ;
• la prise de décision fondée sur des preuves ;
• le management des relations avec les parties intéressées.