By the mid 1980s, when the present owner family acquired the predecessor company, it had already established itself for decades in the metal processing typical of the Siegerland region.
At the end of the 1980s, the product portfolio was converted and expanded, including the production of coloured waste containers. Outrageous at a time when there were only grey bins, because waste separation and recycling had not yet been invented.
Planning of the Packaging Ordinance (VerpackVO)
In 1989, the year of the fall of the Berlin Wall, it became known that the then Ministry for the Environment, Nature Conservation and Nuclear Safety, headed by Minister Klaus Töpfer, was planning a "Packaging Ordinance" with the aim of no longer disposing of packaging waste in landfills but collecting it separately according to recyclables so that it could be recycled.
This was to cover transport packaging (1991), then sales packaging (1992) and finally outer packaging (1993) in three stages.
It was obvious that different "trash cans" would also be required for different types of waste, which is why company founder J.A. Stumpf dealt intensively with this new topic.
Inventor of the colour code for waste separation
Since the legislator formulated the objectives but left the implementation to the market in order to achieve them, differentiation criteria for containers had to be found first.
It was therefore very obvious to realize this by means of the optics in the form of different marking colors.
After studying a book on colour theory, J.A. Stumpf finally decided that the colour blue was a good match for paper, yellow for plastics and green for glass waste.
Since it was impossible to guess at that time that plastics and metals would one day be collected in a fraction, the latter were given the identification colour red.
About a year later, the biological waste was still separated from the remaining residual waste; for understandable reasons, it was given a brown label.
Construction and development of the product line "systematic waste separation".
After the market introduction of these coloured waste collectors, the subject of "waste separation" became the passion of the Stumpf Metallers.
Over the years, users' demands on such waste separation systems have grown, as have the corresponding safety aspects, such as the self-extinguishing properties of waste collectors to avert fire hazards.
As a result of this increased competence, Stumpf Metall's specialists are now gladly consulted on site, e.g. for the introduction of a waste separation system in industry or administration that complies with the regulations.
The completely self-developed and produced product line "systematic waste separation" today comprises hundreds of different container variants - in the standard program. Most of them are available from stock.
And since proper waste separation is now part of environmental certifications in all industrial and institutional areas, this experience of the specialist Stumpf Metall is gladly used. Authorities, universities and schools, companies of the public sector, trade and commerce belong today quite naturally to the satisfied customers of Stumpf Metall.
And this all over Europe.