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ADDITIVES

GRAFE turns plastic into a high-tech product and continuously develops innovative functions that are perfectly tailored to your requirements.

Laser markings on plastics

GRAFE supports its customers with optimal solutions for laser marking and a comprehensive range of services. Unlike other processes, laser marking is resistant to chemicals and abrasion and enables long-lasting, very clean, precise and sharp-edged marking of components without pretreatment. The process is used, for example, in the automotive and electrical industries.

A special challenge for our developers: in order to meet the high requirements of the materials used for laser marking in terms of contrast, edge sharpness and marking speed, we always develop an optimum formulation. The process can be completed in three variants: dark, light and colored.

UV masterbatch for PC double-webbed sheets

Ultraviolet light is essential in nature – it creates growth and biological equilibrium. However, ultraviolet light is also a relatively high-energy radiation that constantly presents challenges to masterbatch manufacturers.

Ultraviolet light causes plastics and colors to age. The durability of plastic components decreases significantly. Plastics are therefore made more resistant with the help of ultraviolet absorbers.

Twin-wall sheets (or double-webbed sheets) are normally made from polycarbonate. Unlike PMMA or polyolefins, PC is highly susceptible to high-energy radiation, loses its strength over time and becomes increasingly yellow. Manufacturers usually use PC compounds with an addition of around 5 to 6 percent of UV absorbers. These compounds are mainly used in coex processes. The thickness of the layer and thus the concentration of UV absorbers on the surface subsequently determine the guaranteed service life of the twin-wall sheet in outdoor applications.

The UV masterbatch for PC twin-wall sheets recently developed by GRAFE offers the advantages of highly concentrated additive masterbatches and contains 50 percent of the active substance in addition to optical brightener and a fining agent. The masterbatch is added to the pure PC in a quantity of 10 to 12 percent and applied to the twin-wall sheet.

Forgery protection

GRAFE offers you an innovative additive masterbatch: a combination of chemical substances for product labeling. These can be set in terms of the quality and quantity in the end product by means of X-ray fluorescence analysis.

The additive masterbatch is intended for use in the field of synthetic yarns and fibers – both for commodity products and for specialties based on PP, PA and PET. The active ingredients in the marker masterbatch can also be used universally in many other plastics. Common processing methods for thermoplastics, solvents, washing solutions, dye baths and spinning oils do not harm the masterbatch.

Another option is combination with colors in the masterbatch – a complete solution for special requirements.

With our in-house XRF system, we offer technical support and assistance in the evaluation of the marker masterbatch in the laboratory or during initial validation in production.

Spectrafoil Optical Lightener – masterbatch for greenhouse film

Our Spectrafoil Optical Lightener is a masterbatch for greenhouse films that converts ultraviolet light into visible light, thereby increasing Photosynthetic Active Radiation (PAR), resulting in earlier harvests, better yields and higher product quality. 

The material has already been used to grow strawberries, tomatoes, basil and cut flowers. Depending on the type of plant, yields increase by 30 percent. Plants are bushier and grow faster and more evenly. The dry substrate content of the fruits also increases.

We recommend the use of this masterbatch for the regions of central, eastern and central Europe, especially in spring and fall, when sunlight tends to be weak. Combination with other additives is also possible.

Spectrafoil Antifungi masterbatch

The containment of pathogens plays a crucial role, especially in the agricultural production of plants for food. GRAFE solves this problem with the Spectrafoil Antifungi masterbatch. Greenhouse films coated with this masterbatch change the incident sunlight in such a way that fungal spores can no longer multiply indoors, which means that considerably less fungicide is required.

Spectrafoil Antifungi not only prevents crop losses, it also increases yields, and the absence of chemicals supports health.

New High Performance Antistatic Masterbatch

GRAFE’s exclusive High Performance Antistatic agent has a surface resistance in the static-dissipative range between 106 and 109 ohms. This high antistatic protection helps to avoid sudden discharges of technical devices, reduces dust attracted to surfaces and minimizes the danger of sudden explosions, thus providing special protection for sensitive electronic devices.

More than three years of research prove the long-term effect of our antistatic masterbatch, which takes effect as soon as the end product is made. The high performance antistatic masterbatch can be combined with color masterbatches or fillers as required. By using low dosages, our customers save costs without being restricted in their design ideas and production processes.

  • Injection molding
  • Blow molding
  • Spun fibers
  • Non-woven materials
  • Deep-drawn parts
  • PVC products
  • Transparent and colorless items in the non-food sector

ADDITIVE BATCHES

THERMAL STABILIZERS

PROCESSING AIDS

PHOTOSELECTIVE ADDITIVES

NIR AND IR ABSORBERS

ANTISTATICS

BIOCIDE ADDITIVES

FLAME RETARDANTS

UV STABILIZERS

METAL DEACTIVATORS

ANTI-FOGGING AGENTS

LUBRICANTS

INDIVIDUAL, PROFESSIONAL SERVICE AND ADVICE

Masterbatches, additives or compounds – we are specialists in the modification of plastics and support you in the development of your tailor-made products. Our color designers and plastics specialists support you in your projects with creativity and inspiration.

LET’S GET STARTED

Call us on +49 (0) 36459 45 0. Send us an e-mail to grafe@grafe.com or click here to use our contact form: