Seminars on polishing Practical. Efficient. Understandable.
Mark your products with razor-sharp laser engraving – from individual parts to series production.
Advantages of polishing courses with the piggy banks
All-round carefree package
All seminar documents, drinks, snacks and a meal together are included.
Maximum practical relevance
Even under heavy loads and in outdoor use
Certificate
After the course, you will receive a certificate proving your newly acquired know-how.
Learn polishing from a professional - our seminars for flawless surfaces

The same problems over and over again: The polish creates new, fine scratches, the high gloss does not want to set in and the repaired area is still visible after polishing. This costs time, nerves and, in the worst case, money. The cause is usually not the tool, but the lack of Know-how about the perfect interaction of polishing machine, polishing agent and polish.
This is exactly where our seminars come in. We teach you basic knowledge and show you step by step how to make any surface shine.
Learn professional polishing - where it suits you best.
Our main seminars take place regularly in our modern training rooms in Bergisch Gladbach takes place. Here we have the perfect equipment to show you all the techniques in detail.
We are also available for you throughout GermanyOnce a year, we also visit you with our know-how in our training rooms in Roggenburg, Hof, Würzburg, Villingen-Schwenningen and Berlin.
The most convenient way? We come directly to you! We are happy to run the desired course as a In-house training directly at your company. This saves your team time and travel costs and we tailor the content perfectly to your needs.
Our courses at a glance
2-day seminar "Modern ways to high-gloss polishing"
In this two-day intensive course we make you fit for the most demanding polishing tasks. Based on our specialist book, we will show you how to systematically achieve the perfect result with the right polishing system.
This is what you will learn in the two days:
- Preparation & erosion structure: How to efficiently remove the hard erosion structure and optimally prepare the surface for the subsequent polishing steps.
- Brush polish & tools: Professional handling of polishing stones and grinding wheels to create a perfect line polish as a basis for the subsequent high gloss.
- Systematic polishing structure: Apply different polishes in the correct order – from sanding to medium to fine high-gloss polish.
- Finish & mirror shine: Add the finishing touches with diamond polish, polishing felt and absorbent cotton to achieve a flawless mirror shine.
- Error prevention: Avoid typical errors such as new scratches or annoying holograms right from the start.
The course in detail:
- 2-day intensive course: A full two days of practical know-how with our master trainer Martin Schriever.
- Reference book: You will receive your personal copy of “Moderne Wege zur Hochglanzpolur” as a valuable reference book.
- Complete catering: We take care of drinks and snacks during breaks.
- Certificate & documents: Of course you will receive all seminar documents as well as your personal certificate of participation.
2-day seminar "Modern ways to high-gloss polishing"
Seminar dates Bergisch Gladbach:
Location | Date | Time |
Bergisch Gladbach | 28.01.2025 – 29.01.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 18.02.2025 – 19.02.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 18.03.2025 – 19.03.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 08.04.2025 – 09.04.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 24.06.2025 – 25.06.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 02.09.2025 – 03.09.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 21.10.2025 – 22.10.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 11.11.2025 – 12.11.2025 | 9:00 am to 4:00 pm |
Bergisch Gladbach | 09.12.2025 – 10.12.2025 | 9:00 am to 4:00 pm |
Seminar dates off-site:
Courtyard | 06.05.2025 – 07.05.2025 | 9:00 am to 4:00 pm |
Berlin | 08.07.2025 – 09.07.2025 | 9:00 am to 4:00 pm |
Villingen-Schwenningen | 09.09.2025 – 10.09.2025 | 9:00 am to 4:00 pm |
Roggenburg | 23.09.2025 – 24.09.2025 | 9:00 am to 4:00 pm |
1-day seminar "Welding & repolishing"
A mold is damaged – how can you repair it professionally and polish the repaired areas back to a high gloss? This one-day seminar provides the answers. Learn how to professionally repair typical damage.
The seminar contents:
- Theory & damage analysis: We refresh your theoretical polishing knowledge and together we create a professional plan for repair and maintenance.
- Practical exercise in micro-welding: Each participant welds a prepared defect on a polished mold under expert guidance.
- Systematic polishing: You will learn how to work through the repaired area step by step and restore the surface to a flawless high gloss.
Perfect finish: The aim is an invisible repair. We will show you techniques to make the polished surface look like new again in the end.
1. damage on a surface

2. welded-on damage

3. machined spot welds

4. finished polished surface, like new

1-day seminar "Welding & repolishing"
The course in detail:
- Compact practical day: In just one day, you will learn everything you need to know about professional repairs and perfect polishing of welds.
- Full catering: Drinks, a snack and lunch together are included in the price.
- Certificate & documents: You will receive all seminar documents and your personal certificate of participation at the end of the seminar.
Seminar dates Bergisch Gladbach:
Place | date | Time | ||||||||||||
Bergisch Gladbach | 30.01.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 20.02.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 20.03.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 10.04.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 26.06.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 04.09.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 23.10.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 13.11.2025 | 9:00 am to 4:00 pm | ||||||||||||
Bergisch Gladbach | 11.12.2025 | 9:00 am to 4:00 pm |
Courtyard | 08.05.2025 | 9:00 am to 4:00 pm |
Berlin | 10.07.2025 | 9:00 am to 4:00 pm |
Villingen-Schwenningen | 11.09.2025 | 9:00 am to 4:00 pm |
Roggenburg | 25.09.2025 | 9:00 am to 4:00 pm |
Online course "Modern ways to high-gloss polishing"
Do you want to learn polishing but don’t have time to travel and stay overnight? Save yourself the driving and the money! Our Online correspondence course offers you maximum flexibility. Ideal for the ambitious polisher or the professional who wants to train from the comfort of their own workshop.
Your advantages at a glance:
- Complete material case: We will lend you everything you need for the course – the piggySonic® Mark 3 ultrasonic polishing system with all the necessary tools and consumables.
- Learn when you want: You receive the complete course in video lessons and can start whenever it fits into your schedule.
- Personal connection to the trainer: Your trainer – Martin Schriever – is available to answer your questions online or by phone at any time. This makes the online course feel almost like a personal polishing workshop.
- Free polishing book: Our specialist book “Modern ways to high-gloss polishing” is included free of charge.
- Certificate of participation: After successfully completing the course, you will receive a certificate.

Martin Schriever
Tel.: 02204 – 30 66 12
ms@diesparschweine.de
Your trainer: Martin Schriever
There is no gray theory with us. Our trainer Martin Schriever is a man of practical experience. In 30 years, he has polished everything that comes up in tool and mold making. We pass this knowledge on to you 1:1 – honestly, directly and without frills. That is the approach of the piggy banks: We help you to immediately save time, material and therefore money by using the right working techniques.
Where our polishing expertise is used
Whether in toolmaking or at the precision mechanic’s workbench – the goal is always the same in the end: an absolutely perfect surface without any blemishes. It is precisely this universal tool that we teach in our courses, tried and tested in practice and directly applicable in the Industry & mechanical engineering.
- High-gloss polishing of injection molds and die casting molds
- Remove scratches from sensitive glass surfaces or aluminum parts
- Polishing chrome and other metallic surfaces
Are you interested in one of our seminars?
If you are still unsure which course is best for you or if you have special requests for dates, the Sparschweine will be happy to help you personally. Competently, quickly and without obligation.
The piggy banks will be happy to help you personally – competently, quickly and without obligation.