These suck bigtime: http://www.markal.com/prod/69/ball-paint-marker.aspx
I bought one once a couple of years ago & the paint corroded the ball
mechanism from the inside & it became unusable pretty quickly. The white
paint had a strong rust brown tint from day one till it ultimately
corroded itself shut. The company did not followup to my phone complaint.
Nissen brand of this style is much better.
I've never had a problem with sharpies on reasonably clean metal -- they
cut right through the film of oil that you get when you work on
something then swipe it with a rag, and they certainly work on dry metal.
Nail polish seems to cut through oil too. I paint a white patch on and
then write the type of steel with a fine Sharpie. Red and black can
fix chipped pointers and index lines. Have a good retort ready for
when the clerk questions why a man needs it.
They've come out with a silver-gray Sharpie lately that I use a lot,
good for marking on dark surfaces. Some wally worlds have them.
Great for marking wall warts and black cables, also mill scale on hot-
rolled steel. There are white and yellow paint markers that are like
Sharpies, also ball-bearing versions of same that are harder to use.
I tend to take a swipe with a Magnum Marker, then scribe my cut line
into that. Magnum Markers have about a 1" square tip. They also have
welding markers in red and silver along with rod and flat soapstones.
Each has their place, no one marker is going to do it all.
Hey, the way I was showed at school was to use felt tip marker pens -
theres good ones and crap ones - a good one will set you back about $5
and you keep this for your bestest layouts. Rest of the time, cheap
crap ones at the markets are fine - they dry out quick, but are dirt
cheap so you dont crack it when one gets lost. The good ones here are
Japanese, (nope, now made in Malaysia, just looked at it) ARTLINE100 -
its got a broad chisel tip so you can do lots of area if you need to.
Washes off with CRC, Kero, Turps. Steel wool. But dont leave it on for
years, it does set...
One day, when I am a real engineer, I will get some layout dye and
make up a pot to keep near the workbench......but until then.... I
will also keep the tube of Prussian Blue nearby for when I use the
surface plate.....near the end of the layout bench......
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