Winter and Summer on Chocolate Boxes What are the differences in the requirements for UV varnishes?

Winter and Summer on Chocolate Boxes

What are the differences in the requirements for UV varnishes?

Chocolate Boxes

UV varnish is divided into two different formulations: winter type and summer type, especially the varnish used for spot varnishing for screen printing. There are some differences depending on the temperature at which it is used. When using, you should pay attention to distinguish between seasons and changes in weather and temperature, and choose suitable varnishes. Compared with the formula in summer, the winter formula is lower in solid content, so that the leveling performance of the varnish can be better when the temperature is low. In summer, the temperature is high. Properly increasing the solid content can improve the curing speed.

If the winter formula is used in summer, it is easy to cause incomplete curing of the oil, which is likely to cause anti-sticking and other phenomena; on the contrary, if the summer formula is used in winter, it will cause poor UV oil leveling performance, resulting in blistering and orange peel failure.