
Master the challenges of PS and PS-GF regranulation.
Avoid brittleness, degradation and unstable batches through better process control and raw material preparation.
Coming soon – contact us to find out when your language version will be available
This course is for advanced users working with general-purpose, high-impact and modified polystyrene (GPPS, HIPS, PS-GF, PS-ESD, EPS, XPS). You’ll learn how to set up your extrusion line for PS waste, including fiberglass-reinforced types, and improve your results without new equipment.
Who is this course for?
🟢 For plant managers and line operators regranulating polystyrene or its modified versions.
🟢 For engineers and technologists who need to stabilize process parameters and avoid frequent complaints.
🟢 For technical teams dealing with brittle regranulate, visual defects, and unstable dimensions.
🟢 For production leaders looking to reduce material loss, increase yield and ensure repeatable quality.
Course Objective
The goal of this course is to give you the knowledge and tools to regranulate PS and PS-GF effectively. You’ll learn how to deal with material fragility, control moisture, minimize degradation, and extend machine life when working with abrasive fiber-filled grades. Practical examples and lab test methods are included throughout.
Why should you join?
🟢 Understand how to process GPPS, HIPS, EPS, XPS, PS-GF and antistatic PS types.
🟢 Learn how to prevent brittleness, discoloration and dimension loss.
🟢 Optimize your filtration, degassing and homogenization techniques.
🟢 Reduce complaints, minimize equipment wear and extend screw life.
🟢 Discover when PS-GF can (or cannot) replace new engineering materials.
What will you learn?
🟢 Material preparation and pre-sorting for PS waste
• Identifying poor quality batches before processing
• How dust, moisture and print residues affect your results
• Best practices in blending and feeding
🟢 Process setup for PS and PS-GF regranulation:
• Temperature, screw speed and pressure control
• Preventing thermal degradation and ensuring consistent flow
• Filtration systems for fiberglass and high-residue materials
🟢 Equipment wear and protection:
• How PS-GF affects screws, barrels and venting systems
• When to use bimetallic components or stellite coatings
• Cost vs. benefit of equipment upgrades
🟢 Quality control and applications of PS regranulate:
• Key tests: MFI, density, fragility, surface defects
• Can recycled PS be visually acceptable?
• When can PS-GF replace new PA-GF or PC-GF grades?
🟢 Final quiz and certification:
• Optional quiz to test your knowledge
• Certificate of completion or distinction based on results
What’s next? – CHECK OUT OTHER COURSES IN THIS SERIES
👉 Extrusion training modules can be completed in any order – you don’t need to start with Part 1. Simply choose the topics that matter most to your production. We also encourage you to explore our courses in plastic recycling, laboratory testing, and polymer material science.
We also encourage you to explore our additional online courses:
These courses are designed for professionals who want to deepen their knowledge of polymer processing, quality control, and modern recycling technologies.
Certificates of Participation and Diplomas from Rolbatch Academy – Your Knowledge Confirmed with Official Documents!
Reserve your spot now and enjoy 30-day access to this online course!

Online Course Format
⏱ Access Duration: 30 days – Learn at your own pace until course completion (24/7)
📜 Certificate of participation and diplomas: Yes.
💬 Available languages: German, English, Polish, Spanish (others available upon request). Contact us to check if Your language is already available or to request a translation.
Price: The price is stated as net. 19% VAT will be added at checkout.
Are you eligible for a 0% VAT invoice? Contact us before making a purchase through the Contact form on our website.
Schedule and Organization
📅 Regular online courses: Start every 2–3 weeks.
👥 On-demand courses: For groups of 6 or more, we can arrange any date and customize the language.
✉️ Write to us and make sure the course is available in your language. If so, you will receive access within 24 hours (on business days). If not, we will inform you when the additional language version is ready.
Request Pricing and Schedule
Our online courses are an affordable solution to gain valuable knowledge in a flexible and convenient format. To receive a personalized quote, let us know the number of participants and your preferred start date. Contact us to learn more and reserve your spot!
On-Demand Organization – Flexibility for Your Needs
Our online courses can also be organized on demand, offering tailored solutions whether you want to train an individual or an entire team. If you're an individual participant, send us an inquiry – we’ll notify you of the nearest available date for this or similar courses.
We can also translate course content into your native language. Currently, courses are available in German, English, Polish, and Spanish. Other languages are available upon request, and we can prepare course materials with translations suited to your needs.
Pricing Information:
The price depends on the number of participants – larger groups benefit from more cost-effective pricing. Invite your team or a larger group of employees and gain practical knowledge together!
When Sending an Inquiry, Please Provide:
- The number of participants interested in the course.
- Your preferred start date and time.
- Any additional questions or details you’d like us to address during the course.
- The language in which you’d like the course to be conducted.
FAQ – Frequently Asked Questions
Find answers to the most common questions here: FAQ ->
🔗 SUBSCRIPTIONS – Want to keep permanent access to the course?
Check out our subscription options: View subscriptions →
💬 Available in Multiple Languages – Tailored Learning for Everyone

👉 Check the list of all courses here -> www.rolbatch.eu/pages/all-trainings-plastics-recycling-energy
👉 www.rolbatch.eu/online-courses
👉 Have questions? Schedule a call here: https://calendly.com/dr_laabs/30-minutes-meeting-google-meet
👉 Or write to us: www.rolbatch.eu/pl/pages/kontakt-magdalena-laabs
