Marker stays well on glass if you want to wait for it to
dry. The problem is, who wants to wait for marker to dry. Do we wait hours,
days for each mark? It’s just not practical. So there are a few techniques that
I’ve come up with to keep us moving forward with cutting and grinding.
I’ve tried all kinds of markers over the years and I found a
silver sharpie has much better staying power. I’m not sure what they use that’s
so different from the black but it stays so well when it dries sometimes I have
to use 0000 steel wool to get it off.
I have also used gold paint pen. It has good staying power
but only when you let it dry. Nice thing is it dries quickly.
To help these markers and paint pens stay even better, smear
petroleum jelly over the marks to keep it from coming off too quickly while
grinding or saw cutting. Make sure to apply a thin layer of the jelly. Excess
jelly can get in the inner workings of your saw and bind it up or capture
additional grinder grit where you don’t want it.
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