Parvus was established in the early 1970s after Paul de Kleijn had discovered flash polymerization. Flash polymerization is a new drying technique for varnish, ink, glue and synthetic resins, in which by means of UV flash light photons with specific properties are being generated, and with this technique a liquid can be converted into a solid in a fraction of a second.

Parvus launched the first flash unit in 1979. Yet it was not until 1991 that this laboratory curiosity was fit for large-scale industrial application. Nowadays it is impossible to imagine the present-day industry without UV curing, where UV flash drying has also won its spurs.

Over the years Parvus has established a reputation in the market of UV polymerization and has already made several dramatic changes in the silk-screen industry and the medical sector among others.

The word Parvus is derived from Latin and means "small", the Dutch name of its founder. Paul de Kleijn participated in obtaining several patents. Some examples of developments we have worked on in the past few decades:

- glass-fibre reinforced synthetic resin up to 5 cm thick
- sprayable UV varnish
- Scratch-resistant UV coatings
- UV curing braille ink
- UV curing silk-screen / inkjet / encoder ink
- Medical stents for percutaneous angioplasty
- Flexible coating for various applications
- UV holt-melt glue
- Digitally processable ink
- Photo polymerisable superabsorber
- UV resin for CDs as data carriers
- UV laminating glue for bulletproof glass and safety glass