Frequently asked questions
Plastic products, materials and approvals
Fast answers for purchasing and engineering – with a direct path to the right material profile, norm profile, guide or the web shop.
In brief
This page bundles the most common questions from purchasing and engineering around plastic products, materials and approvals. Each answer is written to stand on its own and links to the right area – materials, standards, guides or directly to the web shop. Material and standards statements apply per product: the binding reference is always the data sheet for the specific article.
Matching knowledge pages
Guides
View all →Practical knowledge on material selection, cleaning and resistance.
Market & regulation
View all →Regulation, deadlines and market conditions – assessed for practice.
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Sales, grouped and transport packaging under the PPWR – what counts as packaging from 2026 Sales, grouped or transport packaging? The PPWR, applicable from 12.8.2026, requires correct classification. What counts as packaging and what companies need to check. -
Nachhaltigkeit PFAS in packaging under the PPWR – what applies to producers from 12 August 2026 From 12 August 2026 the PPWR sets strict PFAS limits for food packaging. What producers need to check now – with a practical test from Switzerland. -
Nachhaltigkeit PPWR – the EU Packaging Regulation 2026 at a glance The EU Packaging Regulation (EU) 2025/40 applies from 12 August 2026. Obligations, deadlines, current status and what the Packaging Regulation 2026 means for Swiss manufacturers – explained concisely. -
Circular economy: A project with the University of Zurich In collaboration with the University of Zurich, pipette tip boxes are collected, recycled and processed into new products. - A new European packaging regulation in sight On November 30, 2022, the EU Commission presented its proposal for a new regulation on packaging and packaging waste. This regulation will have a significant impact on packaging. A critical review..
- Is recycled PET safe for contact with food? In December 2021, the European Commission presented a successor regulation to the existing Regulation (EC) 282/2008 on materials and articles made from recycled plastic that is intended to come into contact with food.
- Does the plastic tax promote the recycling economy? What’s it all about? The idea of a tax on plastic has been under discussion for some time at the European level and in individual countries, and steps are being taken towards implementation.
- Bioplastics – the solution for resource problems? In 2015, 322 million tons of plastic resin have been produced1. It’s base is crude oil. However, depending on the region, only 4-6% of the crude oil goes into plastic production.
News
View all →Updates on technology, range and company.
- Unternehmen Visit us at NovaFood in Lucerne, 26–27 October 2026 Semadeni will exhibit at NovaFood in Lucerne on 26 and 27 October 2026, booth E195.
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Semadeni AG joins the UN Global Compact Since 31 March 2026, Semadeni AG has been a participant in the UN Global Compact and is committed to the Ten Principles on human rights, labour, the environment and anti-corruption. -
Unternehmen Extraordinary price increase due to the raw material situation Unfortunately, we are forced to temporarily increase our prices from April 27, 2026. -
Unternehmen Catalog 2026 - Order now With over 8,000 plastic products, the new Semadeni catalog 2026 covers packaging, organising, storing, disposing and presenting – request it free of charge or browse the range online. - Unternehmen Trade fair calendar 2026 Here you will find an overview of the trade fairs where Semadeni will be present in 2026.
- WFO Cleanup in Honduras On March 14, 2025, a large-scale clean-up campaign will take place to remove plastic waste from mangroves, beaches and coral reefs.
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Start of RecyPac collection for plastic packaging and beverage cartons In January 2025 the first municipalities introduced the new national collection scheme for plastic packaging and beverage cartons – a step towards a uniform recycling solution for the whole of Switzerland. - We are a member of the KEIS association: Recycling solution for plastic products in hospitals KEIS is committed to giving plastic products a longer life cycle.
- Successful certification for ISO 14001 We have reached another important milestone.
- Together for a Switzerland-wide recycling system We have signed the «Closing the loop for plastic packaging and beverage cartons» pact.
- Cradle to Cradle®: Printing the way nature would do it. The majority of our printed matter is printed according to the Cradle to Cradle® principle. Cradle to Cradle means «from origin to origin» and is an approach to a continuous and consistent circular economy.
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Energy-efficient machines – our contribution to climate protection and SDG 13 Consuming less, i.e. sufficiency, is an effective way to help protect the environment. Nevertheless, there are many goods that we still need. The goal is to produce them with as little energy as possible. Modern, energy-efficient machines and equipment help us to achieve this. -
Energy efficiency, thanks to new injection molding machines Modern, efficient, future-oriented - we also follow this tenor in our production, which we recently upgraded with three new BOY 100E injection moulding machines. -
Update on the Königstein/Saxony plant Since the start of this year, an Intravis Spot Watcher has been in use at our blow-moulding plant in Königstein. -
Königstein site: expansion well on its way Our manufacturing site Königstein / Saxony currently undergoes an expansion by adding a 4000 m2 warehouse.
Standards, certificates & food contact
Can I get a data sheet and declaration of conformity?
Yes. For most articles we supply technical data sheets on request and – for food contact – a declaration of conformity under EU 10/2011, each per product and batch. Send us the article number and the conditions of use.
Request documentsCleaning, sterilisation & chemicals
Which plastics are chemically resistant?
PP and PE-HD are highly resistant to many acids and alkalis, but only to a limited extent to strong oxidisers and some solvents. Resistance depends on concentration, temperature and contact time – when in doubt, have it checked for your application.
To the chemical resistance guideOrdering, custom parts & sustainability
Can I order by article number?
Yes. In the web shop you search directly by article number and add several positions at once via quick entry – suited to recurring B2B orders. Prices, availability and ordering run entirely through the shop.
To the web shopDo you make custom parts?
Yes. Through our own injection moulding and tool making we manufacture customer-specific parts – from design through sample to series. Send us the requirement, quantity and conditions of use for a quotation.
Request custom manufacturingDoes Semadeni offer recycled-content products?
Yes. We carry products with recycled content and advise on recyclable, mono-material solutions. Concrete figures apply per product – without blanket percentage promises. Semadeni's sustainability management is rated EcoVadis Gold.
To recyclatesNo results. – or ask us your question directly.
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Our team answers technical and commercial questions – and supplies data sheets and conformity documentation for the specific product.
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