pretty much everybody uses these in some for or other
when profiling gelcoat

red/black/blue 1 pack paint, put some in a jar, dilute
with acetone (gives very quick drying), you will have
to experement with dilution, too thin, you cant see
it, too thick and it will clog the finer grits . wipe
on with rag, we call it scumble locally, sand until
it disapears (but do not sand untill every single dot
disappears otherwise you may sand through.

for each grade of abrasive you use reapply(shows up
the scratches from the last cut)

for small areas you can use a soft graphite pencil

if you have to apply more gelcoat or fill pinholes,
wipe of residual paint with acetone first otherwise
it will be trapped under the gel

in any case wipe down with acetone before polishing

Pete

At 17:42 13 January 2008, Gregg Leslie wrote:
Hi Folks,

Anyone use a colored slurry solution when you are wet
sanding to finish? I see on the Polish refinish site
they use some kind of blue solution that drys. Any
idea what it is composed of?

GL