
We manufacture sleeve plugs and edge protection angles by injection moulding from the recycled material Tectan® (paper/polyethylene).

Entwicklungsgesellschaft für Verbundmaterial Diez mbH
Diez (Rhineland-Palatinate)New on Amplifa
About EVD Diez
Entwicklungsgesellschaft für Verbundmaterial Diez (EVD) mbH was founded in 1990 as part of the Tetra Pak Group and is regarded as the inventor of the material Tectan®, a composite material made of paper and polyethylene. From residual materials of the beverage carton industry (coated carton waste), the raw materials are shredded, dried and processed into granulate in a specially developed process; the granulate consists of 100 % secondary raw materials. Using injection moulding, EVD manufactures from it sleeve plugs (chocks) for stabilising winding cores for paper rolls as well as edge protection angles for transport securing in industry, logistics, shipping and warehousing; in addition, press plates made of Tectan® are offered. Since 1997 the company has been owned by its employees. Production takes place in a 1,680 m² production hall in Diez (Rhineland-Palatinate) with several injection moulding machines; customers such as large paper mills in Sweden are supplied directly by rail. Photovoltaic systems on the production and storage hall covered around 41 % of electricity demand in 2025, supplemented by 100 % certified green electricity and a corporate environmental management system.
- Site
- Diez
- Processes
- Injection moulding (sleeve plugs made of Tectan®), Injection moulding (edge protection angles made of Tectan®), Injection moulded products (press plates made of Tectan®), Injection moulding production from Tectan® (100 % secondary raw materials), Manufacture of sleeve plugs (chocks) for paper cores, Edge protection angles for load securing, Processing of paper/plastic granulates from beverage carton residual materials, Direct supply by rail
- Materials
- Tectan®, Paper, Polyethylene, Paper/polyethylene composite material, Paper (recycled paper from beverage carton residual materials)
- Certificates
- EcoVadis Medal Platinum, EcoVadis Platinum (94 points, 2026), Corporate environmental management system, ISO 9001
- Founded
- 1990
- Industries
- Paper industry, Beverage carton industry, Logistics/shipping/warehousing, Transport securing, Paper industry (paper mills), Beverage carton industry (raw material side)
- 01
Procurement of residual materials from the beverage carton industry
- 02
Shredding, drying and processing into paper/plastic granulate
- 03
Production of the material Tectan®
- 04
Injection moulding of the products (sleeve plugs, edge protection angles)
- 05
Direct supply, including by rail to paper mills
Material Tectan® and Process
Paper/polyethylene composite material
Patented material made of 100 % secondary raw materials (coated carton waste), dimensionally stable and impact-resistant; mechanical properties: tensile strength 18 N/mm², flexural strength 24 N/mm², density 1.02 g/cm³.
Paper (recycled paper from beverage carton residual materials)
Main component of Tectan®, predominantly from production waste of the beverage carton industry.
Polyethylene
Composite component of the carton composite, giving the material dimensional stability and toughness.
Production in Diez

Diez
DEProduction and administration
- Materials
- Tectan® (paper/polyethylene)
- Several injection moulding machines
- System for producing paper/plastic granulates (processing technology)
- Photovoltaic system, production hall
- Photovoltaic system, storage hall
Products Made of Tectan®



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Injection moulding (sleeve plugs made of Tectan®)Plastics | – | – | – | – | Tectan® (paper/polyethylene) |
| Injection moulding (edge protection angles made of Tectan®)Plastics | – | – | – | – | Tectan® (paper/polyethylene) |
| Injection moulded products (press plates made of Tectan®)Plastics | – | – | – | – | Tectan® (paper/polyethylene) |
| Plastics | – | – | – | – | Beverage carton residual materials (paper/polyethylene) |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Injection moulding machine | – | several | – | – | Diez (Industriestraße 30) |
| System for producing paper/plastic granulates | – | – | – | 1998 | Diez |
Additional services
Reference customers
Quality and Sustainability
Modern high-performance machinery ensures a high level of process reliability; a corporate environmental management system documents goals and measures and is steered annually via KPI reviews.
| Evidence | Diez |
|---|---|
| EcoVadis Platinum (94 points, 2026) | |
| Corporate environmental management system | |
| ISO 9001 |
Company History
- 1990
Founding of EVD by Tetra Pak; construction of a production facility for manufacturing panel materials from Tetra Pak cartons
- 1991
Development of the product Tectan® and market launch of the press plates
- 1997
Takeover of EVD by the employees and development of the Tectan® product line
- 1998
Installation of a system for producing paper/plastic granulates
- 1999
Market launch of injection moulded products made of Tectan®
- 2000
Installation of further injection moulding machines
- 2004
Installation of new processing technology for paper/plastic granulates
- 2006
Continuous expansion and enlargement of the production line for manufacturing injection moulded products made of Tectan®
- 2020
Construction of a new production hall at the new site Industriestraße 30
- 2021
Completion of the 1,680 m² production hall and relocation of the injection moulding machines
- 2022
Installation of the photovoltaic system on the roof of the production hall
- 2023
Expansion of production capacity through technology and plant modernisation
- 2025
Installation of another photovoltaic system on the roof of the storage hall