UV Coatings

Looking at the UV varnishes it is also impossible to estimate the total number of different applications.

UV varnishes may be applied as clear coatings, matt coatings or pigmented coatings. We differentiate between

solvent free UV Coatings (so called 100% systems)
solvent based UV coatings
water based UV coatings
UV powder coatings (100% systems)

Working with solvent or water based formulations we have to guarantee that surplus solvents and water have been completely removed before UV curing; otherwise the excellent properties of the coatings may be greatly reduced.

UV varnishes can be applied on a substrate with different application processes. Here we list some of the usual processes:

various printing technologies
Curtain coating
Roller application
Spray application
Dipping
Flow coating
Bar coating

Due to the fact that most UV varnishes are solvent free systems or contain only

small amounts of solvent, the VOC (volatile organic compounds) regulations

are not a problem for this class of formulations.