Infrared Heat for Coating and Finishing Applications

Coating and finishing processes benefit from infrared technology in a number of ways. Infrared can provide process heat for panel forming, preheating, drying, curing of coatings, and many other uses.

Coating applications using IR heat

Careful adjustment of the infrared emitters as to wavelength, shape and power output to the properties of the product to be heated is essential to the result. Radiation precisely adjusted to the paint's absorption properties is rapidly converted into heat inside the paint, and water and other solvents evaporate, while the material and the surroundings remain cooler and are spared. In this way, infrared drying speeds up production, improves quality and at the same time saves energy and costs.

Your advantages with infrared drying:

  • Heating requires no contact
  • High heat transmission capacity
  • Wavelength adjusted to the substrate and the paint system - Electrical and gascatalytic IR systems offer short wave to long wave IR
  • Short response times enable good control and regulation

For drying coatings, we offer electrical and gas-catalytic infrared. The gas-catalytic infrared heating panels from Heraeus Noblelight are ATEX certified.

Popular uses of IR in coating applications include:

Drying organic paint on glass bottles

A carbon infrared oven from Heraeus Noblelight has helped Stoelzle Flaconnage to achieve significantly faster curing of organic paint sprayed onto to highly decorative perfume bottles.

Read our application example here.

CIR emitters for powder coated screws

When building houses, halls or other buildings, on many positions you need screws. They are exposed to weather conditions like rain or sun, so they have to be coated to make them resistant against corrosion. A three-zone, carbon infra-red medium wave oven from Heraeus Noblelight is helping SFS Intec to improve the flexibility and quality of its powder coating operations.

Read our application example here.

Infrared system cures decorative coatings

Decorative motifs on insulated containers, such as coffee pots or vacuum flasks, must be scratch-resistant, tough and ideally also dishwasher-proof. Alfi GmbH in Wertheim in Germany, a leading manufacturer of high-quality insulated flasks, has resolved this problem using an infrared system from Heraeus Noblelight.

Read our application example here.

Infrared Heaters Speed up Coating of Signs

A medium wave infrared oven from Heraeus Noblelight is helping Hawes Signs to achieve significant increases in production line speed in the powder coating of aluminium and steel panels.

Read our application example here.

 Infrared Emitters for Powder Coatings on Engine Housings

Demag Cranes and Components manufactures high value engines, which feature a high value housing with a top class coating.In an existing, in-line plant, various sizes of engine housings are coated with a powder lacquer. Convection ovens, gas infrared and induction proved unsuitable for this application, because they either require too much space or too much maintenance. In the end, electric infrared emitters were chosen as the heating source, because infrared radiation is readily absorbed by powder, so that the powder heats up very quickly.

Read our application example here.

Curing of Powder Coating

The curing of powder coating is a popular and especially effective use of infrared technology. IR's consistent application of heat across surfaces means that the coating is activated evenly, resulting in a smooth finish.

Water soluble lacquers require curing onto their surfaces during processing. Infrared technology is well suited to such applications; for one thing, IR is superior to other methods that create wind as part of their operation. And the high level of precise control afforded by infrared technology means that heat is targeted, and can be used only where and when it is needed.

Paper and Plastic Coating

The paper processing industry enjoys many benefits when integrating infrared technology into the process. IR applies heat evenly across surfaces, a quality essential in paper applications. And the quick on/off controllability of infrared lamps avoids application of too much or too little heat, keeping the process moving at optimal throughput.

Your application is not listed? Infrared can do much more! Ask us!