The industrial group is the expert in protecting sensitive and hazardous materials with tailor-made packaging since 1833.

Frequently Asked Questions

1. Materials / Features

  • Why use Tournaire plastic packaging?

    Our plastic packaging (HDPE and Coextruded) have the advantage of being light, highly resistant and acting as a barrier to solvents and gases. Extrusion blow-moulding of plastics allows freedom in the design of shapes while improving the ergonomics of the packaging. Effective sealing systems are combined with our packaging to guarantee optimum water-tightness.

  • What raw materials are used to manufacture Tournaire plastic packaging?

    The main structure of our packaging is mainly made from High-Density Polyethylene (HDPE) with the surface in contact with your products made from Polyamide or EVOH.

  • What materials are used in the manufacture of Tournaire sealing systems?

    Most of our screw caps are made from Polypropylene (PP) comprising a compressible multi-layered joint made from Aluminium/Polyethylene (PE) on a PE foam backing. We also produce induction seal wads as standard. Teflon seals on PE foam are also available as an option.

2. Manufacturing / Product design

  • What is coex (coextrusion blow-moulding)?

    Coextrusion blow-moulding is a procedure involving manufacturing a container from a tube made from several concentric layers of plastics, called a parison. This parison is clamped between two half-moulds which join together. Once it has been cut in this way, pressurised air is injected into the parison, forcing it against the walls of the mould, in the shape of a bottle. The parison is then cooled by injected air and the air circulating in the half-moulds, completing solidification of the bottle.

  • What are the main sealing systems?

    Tamper-proof plastic stoppers with compressible or sealable barrier joints are the most commonly used and most reliable systems for industrial applications. Tournaire S.A. also offers seals using other principles, including caps, screw-on pumps, clickable caps, etc.

    Our co-extruded plastic packaging is particularly used in the phytosanitary industry, for solvents, solvent-based paints, adhesives and vitamins sensitive to oxidation.

  • How does TOURNAIRE’s manufacturing ensure optimum emptying?

    We offer you Tournaire’s product ranges. Ours are the broadest and deepest ranges of aluminium packaging on the market, with openings suited to all content types, whether liquid (volatile, viscous, etc.) or solid (powder or granules).

    Our packaging is studied and designed to facilitate and optimise the emptying of your products by your customers (shape, opening, surface condition, relative absence of static electricity, etc.).

  • What inspections do TOURNAIRE products undergo?

    Inspections tailored to each manufacturing process are organised at various stages of production to ensure the conformity of raw materials, semi-finished products and containers. In addition to the continuous self-monitoring carried out by production line operators, and systematic inspections by product quality supervisors, various automated inspections (water-tightness and appearance) are carried out to ensure the highest possible level of quality. Furthermore, our Product Quality department is equipped with a Laboratory in which regulatory tests, as well as other more sophisticated tests, are regularly carried out. This Quality organisation is ISO 9001 certified.

  • How is the traceability of quality controls ensured throughout the manufacturing process?

    Tournaire S.A. is certified according to ISO 9001 (Quality), ISO 14001 (Environment) and MASE (Safety) standards. MASE is a very rigorous French certification requiring a safety improvement process within the company.

    At every stage in the manufacturing process, from receipt of the raw material to stocking of finished products, a unique batch number is issued identifying the batch purchased or manufactured with respect to the various inspections. Computerised management of production and printing of labels and manufacturing orders, using bar codes, means we can guarantee the traceability of the box or pallet up to the point of delivery.

  • What types of products can be packed in your aluminium packaging?

    Firstly it should be remembered that it is the responsibility of the packaging customer to test the compatibility between the products to be packed and the packaging used. Our aluminium containers have been used for decades to preserve and transport a wide range of substances, including pharmaceutical raw materials, raw materials and compositions for the perfume industry, foodstuffs and speciality chemicals (adhesives, colorants, paints, etc.), including hazardous materials.

    Some indications may be given by the American Aluminum Association booklet “Guidelines for the Use of Aluminum with Food and Chemicals” (link). It is not advisable however to pack products that are particularly corrosive to aluminium, e.g. too acidic or alkali (or foodstuffs that are too salty or acidic according to the Council of Europe recommendations).

  • Can your packaging be used to transport foodstuffs?

    The materials in contact with your products are suitable for foodstuffs under certain conditions. Food safety certificates can be provided on request. Customers are reminded that the packager is responsible for testing the compatibility between packaging and its content (stability and migration studies).

  • Can your packaging be used to transport hazardous products?

    Most of our packaging is certified for the transportation of materials classified under UN regulations, either in unit packaging (container + seal) or packaging contained in a consolidated carton. These certifications allow products to be transported in total safety and completely legally, by any means of transport (road, sea, rail and air) provided other aspects of the regulations are complied with, as discussed in the following question.

  • What is “UN certified” packaging?

    The UN has issued regulations setting out restrictions for transporting hazardous materials by road, sea, rail or air. Most of our packaging which has passed the UN’s tests in a certified laboratory is authorised for transporting hazardous materials in the hazard group approved by the UN tests (I, II or III). The French certification body for our packaging is BVT (Bureau des Vérifications Techniques). We also work with BAM and TUV in Germany and IBE in Belgium.

    For information, it is necessary to comply fully with the requirements set out in the UN standard, particularly using only authorised components, assembling them according to the Approval Certificate and correctly identifying packaging and outer-packaging using appropriate labels once filled and assembled.

3. Use

  • What temperature can your packaging and their seals withstand?

    For optimal use of our aluminium packaging (with thermoplastic seals), we recommend use between -20°C and 45°C. Long-term exposure to temperatures higher than 100°C permanently and irreversibly alters the characteristics of the aluminium and the plastic seals.

  • What are your recommendations for storage of your packaging?

    We recommend storing our products in warehouses compliant with applicable standards, free from humidity and the risk of contamination. It is also important to protect them from sudden temperature variations. Ideally, we recommend keeping products at temperatures ranging from 5°C to 30°C, with relative humidity of 40% to 60%.
    You should also not stack more than two pallets on top of each other, nor stack other products on pallets of Tournaire packaging.

  • What is your recommended time limit for use of your packaging?

    Depending on storage conditions, in addition to regulatory reasons in the case of UN-certified containers, we recommend a maximum period of five years between the date of production and the date of use of our packaging and under no circumstances exceeding the year stated on the UN engraving by more than five years.

  • What pressure can your packaging withstand?

    Our packaging and their seals can withstand quite high internal pressure without any leaks being observed.All our UN-certified containers are approved for internal hydraulic pressure of between 1 and 2 bar. This pressure is specific to each seal, so please contact us if you have specific requirements.N.B. It is possible that some containers may deform when the internal pressure becomes high, without their water-tightness being affected.



  • How do you ensure tamper-proofing?

    Crimped seals and caps with breakable or self-breaking rings are used to guarantee the tamper-proofing of your products. Heat-sealed foil also makes the seal tamper-proof.

4. Quality / Regulatory

  • What Quality-Environment-Safety certifications does Tournaire S.A. possess?

    At a corporate level, Tournaire S.A. is certified according to standards ISO 9001, ISO 14001 and MASE. MASE is a very rigorous French certification requiring a safety improvement process within the company.

    In terms of products, most of our ranges are also UN certified, to the highest level, by authorised bodies (BVT in France, BAM and TUV in Germany). Our packaging is virtually unbreakable and particularly safe, allowing your products to be transported by any logistical means, in total safety and completely legally, anywhere in the world.

  • What are the main development focuses of your quality policy?

    Having been an industrial company for over 180 years, Tournaire S.A. has built its quality policy around six areas of progress, in order to constantly serve you better. These six progress areas guarantee the ongoing supply of technical packaging and your satisfaction:

    – Delivering quality products (zero-fault target)

    – Developing innovative packaging

    – Ensuring satisfactory manufacturing lead-times

    – Having a well-ordered and efficient production environment

    – Progressing together by sharing everyone’s ideas and meeting our commitments

    – Ensuring the company’s ongoing growth in order to serve our customers in the long term and very long term

  • Can you provide us with the compliance certificates and analysis certificates?

    We can provide you with the compliance certificates, at your specific request.

  • Is Tournaire S.A. recognised by customs as an “Approved Exporter”?

    Yes, Tournaire S.A. has been granted the status of “Approved Exporter”. This status allows you to benefit from more competitive import taxes, subject to agreements being in place between your destination country and the European Union. This status also simplifies administrative and customs formalities for you.

  • What security measures are in place to protect your sites?

    Tournaire S.A.’s production and storage sites are enclosed and kept under surveillance 24 hours a day. External visitors may only enter the sites via the security point or accompanied by an authorised member of staff. Employees and accredited personnel are given an electronic badge.

  • How do you guarantee your products’ traceability after dispatch?

    Our plastic packaging is identifiable by a date stamp, recording information concerning the manufacturing time and run. Batch numbers are stated on the bar code label of the delivered packaging. UN-certified products also include an engraving of the certification number, which is dated.