Manufacturer of EPS granulates for insulation, packaging and sports helmets with in-house polymerisation and extrusion
SUNPOR Kunststoff GmbH
St. Pölten-Radlberg (Tiroler Straße 14) · St. Pölten-Stattersdorf (Stattersdorfer Hauptstraße 48)New on Amplifa
About sunpor
SUNPOR Kunststoff GmbH is an Austrian manufacturer of expandable polystyrene (EPS) headquartered in St. Pölten. Founded in 1986 by the Norwegian O.N. Sunde Group, the company produces EPS granulates for building insulation, the packaging industry and sports helmets. Production takes place at two integrated sites in St. Pölten-Stattersdorf and St. Pölten-Radlberg and combines the processes of polymerisation and extrusion, enabling a broad range of granulate types up to and including the processing of EPS recyclates. With an annual capacity of 260,000 tonnes and an export share of around 90 percent, sunpor is one of the three largest EPS manufacturers in Europe. Around the year 2000, the company played the leading role in developing grey EPS (Lambdapor) with graphite particles for infrared-reflective insulation improvement. In-house research and development, application consulting, and recycling and upcycling processes (including CreaSolv with the Fraunhofer Institute) round out the value chain.
- Site
- St. Pölten
- Processes
- Polymerisation (EPS granulate production), Extrusion (production of mass-coloured EPS granulates, e.g. suncolor cylindrical granulate), Production of EPS granulates (including processing of EPS recyclate), Upcycling/recycling of EPS (CreaSolv® process, upcycling EPS from flustix-certified, Research & development of proprietary EPS types in the in-house laboratory, Research & Development (in-house laboratory), Application consulting for processors, EPS upcycling/recycling (CreaSolv process with the Fraunhofer Institute)
- Materials
- sunpor® A243, sunpor® A321, sunpor® A323, sunpor® A422, sunpor® A423, sunpor® A145 (SE), powerpor® 2, powerpor® 3
- Certificates
- ISO 14001, ISO 9001, Responsible Care
- Founded
- 1986
- Employees
- 190
- Industries
- Building insulation/construction, Packaging, Sports helmets (bicycle and motorcycle helmets)
- 01
Research & Development (in-house laboratory)
- 02
Raw material purchasing
- 03
Polymerisation (EPS granulate production)
- 04
Extrusion (mass-coloured granulates)
- 05
Processing of EPS recyclates (upcycling)
- 06
Quality management
- 07
Application consulting
- 08
Sales logistics
Materials and Processes
sunpor® STD (e.g. A243, A321, A323, A422, A423)
White standard EPS for insulation boards and packaging moulded parts in various bead sizes and density ranges.
sunpor® A145 (SE)
EPS with flame retardant, mainly for impact sound insulation boards and low-density blocks.
Lambdapor® (among others 750 generation2, 753, premium, 750 R15)
Grey EPS with infrared-reflective graphite particles for up to 25 % additional insulation performance in building insulation.
suncolor® (exquisit, protect, superfusion, micro, PPE)
Mass-coloured, extruded EPS for sports helmets and packaging with elevated thermal requirements.
powerpor® 2 and 3
White EPS with high mechanical strength for construction moulded parts such as Hourdis and large moulded parts.
terrapor® 3
High-density EPS with polymeric flame retardant for perimeter and load-bearing insulation with reduced water absorption.
Lambdalit®
High-density functional material for complex, highly load-bearing moulded part material, available for standard moulded part machines.
suncolor circolor® 100 and Lambdapor® 750 R15 (flustix-certified recyclates)
EPS types based on 100 % and 15 % EPS recyclate respectively for an EPS circular economy.
sunpor® bio infill
Biodegradable polymer-based granulate for filling systems, compostable according to EN 13432.
Sites
St. Pölten-Radlberg
ATHeadquarters and production site (since 2009)
- Materials
- EPS granulates, Lambdapor®, suncolor®, recyclate types
- Polymerisation
- Extrusion
- in-house laboratory for research and development
St. Pölten-Stattersdorf
ATProduction site (founding plant)
- Materials
- EPS granulates
- Polymerisation
Products and Applications
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Polymerisation (EPS granulate production)Plastics | – | – | – | – | EPS (expandable polystyrene) |
| Extrusion (production of mass-coloured EPS granulates, e.g. suncolor cylindrical granulate)Plastics | – | – | – | – | EPS (expandable polystyrene), suncolor PPE |
| Production of EPS granulates (including processing of EPS recyclate)Plastics | – | – | – | 260,000 t/year capacity | EPS (expandable polystyrene), EPS recyclate |
| Upcycling/recycling of EPS (CreaSolv® process, upcycling EPS from flustix-certifiedPlastics | – | – | – | – | EPS (expandable polystyrene), EPS recyclate |
| Research & development of proprietary EPS types in the in-house laboratoryEngineering | – | – | – | – | EPS (expandable polystyrene) |
Additional services
Reference customers
Quality and Certification
sunpor is certified according to ISO 9001 (quality management) and ISO 14001 (environmental management) and produces according to the Responsible Care standards. Consistent quality across all delivered batches is documented and safeguarded by in-house quality management and the in-house laboratory.
| Evidence | St. Pölten |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| Responsible Care |
Company History
- 1986
Founded by the Norwegian O.N. Sunde Group in St. Pölten-Stattersdorf
- 2000
Leading development of grey EPS (Lambdapor)
- 2003
Production of grey EPS under the Lambdapor brand
- 2009
Opening of the new headquarters in St. Pölten-Radlberg
- 2025
suncolor circolor® 100 wins the Interfoam Golden Foam Award 2025