There is disclosed a process of priming a surface (preferably part of a
vehicle) comprising; i) applying a UV radiation curable primer to the area
to be primed; ii) curing the primer with UV radiation provided by one or
more UV lamps having a UV-B:UV-A ratio of 1:1 or less and substantially no
UV-C content, the UV radiation curable primer containing: A. 0-84% by
weight of one or more compounds containing one ethylenically unsaturated
free-radically polymerisable group per molecule; B. 5-50% by weight of one
or more compounds containing two or more ethylenically unsaturated free
radically polymerisable groups per molecule; C. 10-70% by weight of one or
more pigments, fillers and/or dyes; D. 1-8% by weight of one or more
photoinitiators; E. 0-20% by weight of volatile organic solvent and; F.
0-15% by weight of customary additives. Preferably the process also
includes sanding the primer and topcoating the primer with one or more
topcoats. There is also disclosed a surface whenever treated in a process
of the invention.
