product development

Individually manufactured injection molded products, assemblies and individual parts

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We transfer your ideas in a concept suitable for injection moulding

We support you in designing and developing your plastic elements, assemblies or complete plastic products.
In doing so, we think through your product from the point of view of injection molding production and contribute valuable ideas for highly efficient and economical end products.

From the idea through to the finished product

We support you in:

planning and conception

Together we will discuss your project or your product under the following aspects:

  • Product design – shape, color, imprints, embossing etc.
  • Material / type of plastics to be used
  • Production steps in coordination with our machinery
  • expected purchase quantity production
  • production time packaging and delivery
cost calculation

You will receive an offer from us for the development, production and delivery costs.

digital draft

Our designers develop a 3D model of your product, which forms the basis for tool manufacture. Through various simulations on this model, possible problems in the injection molding process can already be identified and avoided.


On request, we can create a prototype of your product for you. This is dimensionally identical to your desired end product, so that you can test the shape and fit in advance.

Manufacturing of injection molds

Together with our partners, we manufacture the molds and tools for the necessary production steps. The test and sampling then takes place in our factory.


After your approval, series production begins with regular quality checks at our factory in Brotterode-Trusetal.


After completion and a final quality check, you will receive your product in accordance with the agreed delivery conditions.

Plastics / Material / Substances

We also process the following plastics and materials in combination in one product.

HDPE oder PE-HD (High Density Polyethylen)

This thermoplastic polymer has a particularly high density. This material has special properties:


  • High toughness and rigidity
  • Resistant - also to cracks/tension
  • Good temperature resistance
  • Physiologically harmless
  • Up to 100% recyclable
PP copo, PP homo (Polypropylen)

Polypropylene is an easy-to-process plastic (also known as engineering plastic or thermoplastic) with the following properties:

  • Higher rigidity and hardness than polyethylene
  • Becomes brittle when cold
  • Service temperature from 0°C to +100°C
ABS (Acrylnitril-Butadien-Styrol)

Acrylonitrile butadiene styrene copolymers are thermoplastic terpolymers with the following properties:

  • High impact strength and high toughness
  • Relatively hard and stiff
  • High temperature resistance
  • Very easy to recycle
PS (Polystyrol)

Polystyrene is a low-cost, transparent (also white when foamed) thermoplastic with the following properties: 

  • Resistant to alkalis and mineral acids
  • Not resistant to petrol and ketone
  • UV sensitive
  • High rigidity
  • Medium hardness
  • Low impact resistance
  • Service temperature between -10°C and + 80°C
TPE (Thermoplastische Elastomere)

Thermoplastic elastomers are dimensionally stable at room temperature, but are malleable when heat is applied. TPE is particularly suitable for injection molding production. At room temperature, elastomers can be deformed by tension and pressure - but then return to their original shape. TPE can be up to 100% biodegradable or recycled.

PA 6 (Polyamid 6)

Polyamide 6 (also Perlon) is a thermoplastic material. These plastics are particularly suitable for injection molding and have other properties:

  • High strength at room temperature
  • Particularly abrasion and tear resistant
  • water resistant
  • Fast drying
carbon fiber

Carbon fibers are high-tech plastics with extreme strength and rigidity at a particularly low weight. However, carbon fiber is relatively expensive due to the production.

natural fibers - compounds und granulats

Natural fibers from cork, leather, wood and flax can be used in our products in combination with plastics.

Your contacts

Robert Engel

Robert Engel

Product management

Lennart Kratz

Lennart Kratz


Eveline Nitschke

Eveline Nitschke

Customer management

Quality - Made in Germany

Since 1993 we have been an innovative and reliable manufacturer of injection molded products for the construction industry. Your benefit is our experience.

Product catalogue

downloadable in PDF format

Here you can download our catalogue in english and german language:

Icon Kratz Kunststoffprodukte

Alfred Kratz
Kunststoffprodukte GmbH
An der Mommel 13
D-98596 Brotterode-Trusetal