Widening the polymer horizon



Addcomp is a leading independent developer and manufacturer of unique polymer additive solutions for producers of:

  • films
  • yarns
  • nonwovens
  • wood-plastic composites
  • glass fiber and natural fiber reinforced composites
  • injection- and blow-moulded plastics
  • compounds and polymers

Our vision is to produce and develop tailor-made polymer additive solutions with the highest added value for our customers worldwide. The company’s customer base is global and active in almost every market where plastic products are significant, including the automotive, heavy truck, recreational vehicles, construction, appliance, packaging, geotextiles, and agriculture sectors.

Addcomp supplies its polymer additive solutions as masterbatches, as powders, as compacts of 100% additives, or as granules encapsulated in a unique skin technology. The company is headquartered in Nijverdal, The Netherlands, with production facilities and sales offices in Nijverdal and in Rochester Hills, Michigan, in the United States.

Addcomp specializes in:

  • Formulation development and optimization
  • Incorporating difficult-to-handle ingredients such as liquids, viscous materials, and those with low melting points
  • High additive concentrations (>60%)
  • Excellent dispersion
  • Multi-component (combi) masterbatches
  • Tailor-made solutions

Our products

In additon to additive solutions that enhance performance or simplify processing,  Addcomp produces functionalized maleic anhydride grafted (MA-g) polyolefins, which serve as coupling agents for composite materials reinforced by glass, carbon, wood, or other natural fibers. These versatile additive solutions can also act as a compatibilizer or a tie layer between different polymer species.

All of Addcomp’s products are distinguished by their high quality and their consistent composition, which is achieved by means of:

  • Narrow production tolerances
  • Full process and material traceability
  • In-house lab facilities

The quality management systems of Addcomp are certified according to the latest requirements of ISO/TS 16949.

Addcomp is part of the Plastic Additives business line of ALTANA’s largest division BYK Additives & Instruments.



BYK Additives & Instruments is one of the world’s leading suppliers in the additives sector. The main uses for BYK additives include application areas in the coatings, printing ink and plastics industries. BYK additives is also growing in paper coatings, in the production of adhesives and sealants and in construction chemistry.
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