I haven’t really found a ton of reading, so wondering how you guys approach cleaning various signs.
For example, we just WC a small church and their (stone? concrete?) sign out front with black recessed lettering was absolutely covered in mildew and I’m standing there trying to figure out what a 3% SH wash would do to it. There are a lot if these at the entrance to subdivisions as well.
There’s also those flat printed signs I see all the time with algae growing on them.
Anyone have horror stories I can learn from? Last thing I need to be doing is re-lettering someone’s expensive embossing.
That Lakes sign took a marble/granite cleaner and 000 grit steel wool to come clean, then put a polish on it for good measure. Most were about a 50/50 mix and some needed a lil pressure afterwards to clean up better. Done some others that were dryvit that didn’t clean up so well because birds had pecked the crap out of them. Still looked better afterwards.
The flat printed signs may or may not have laminate on them. There are two ways to make those one is direct to print where they print the ink right on the surface and the other way they print a vinyl material then stick it on to a substrate. Usually the digital prints on vinyl have the plastic laminate on it but not always. Rarely do they put the laminate on the direct to print and that will get messed up easily. Just feel the material and see if it has that plastic then you should be ok.
