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How-magnetic-signs-are-made
There are many ways to make a magnetic sign. Most lesser qualified shops buy
magnetic backing from there local sign supplier buy the foot off of a roll kept
at the supply house. For most shops there is no choice of features for this
backing and they get what they get. See
Types-of-magnetic-backing for more information.
Lettering and graphics are then put on the backing in a multitude of ways
depending on what equipment the sing shops owns. Some cut lettering out of vinyl
film and then apply the sections of film to the substrate (magnetic backing).
For basic lettering in one or two colors this method will produce a good sign if
a high quality film is used, however the process limits you to fairly large
letters and not many text characters. Each color must be loaded into a plotter
and cut out for each color on the sign. We have seen many signs where the vinyl
lettering bubbles or peels and comes off as the signs start to age. As you can
imagine the more complex the sign gets the harder is is to make it look nice.
Anything but simple line art becomes a problem to cut properly. To add graphics
a lot of smaller shops either do not do it or try to print a graphic decal to
stick to the sign- this usually results in a mismatched graphic background that
dramatically hurts the signs appearance. Some will use a printer to first print
onto a sheet of vinyl and then try to stick that to the magnet - this can result
in air bubbles and wrinkles and the ink quality is usually not up to
withstanding the outdoor environment these signs where meant to be used in.
There are many types of inks most of which are not very durable when exposed to
the backing sun. We found that the only proper solution is to use true UV
(ultra violet) cured inks for a super durable sign. Many companies use
Eco-Solvent inks that just will not provide long term satisfaction. Some
advertise that they use UV stable ink, this is not the same as UV cured
ink that uses a high powered ultraviolet light to full cure the ink to the
substrate as it comes out of the printer.
In short, there are many very high quality printers making
excellent magnetic sign products - unfortunately there are many more that are
taking lots of short-cuts that result in inferior products being sold to
unknowing customers.
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