I used a paint for concrete on asphalt for an analemmatic about 13 years ago. It held up for a few years at least, but then the school repaved the area. -Bill G.
On Thu, May 2, 2013 at 3:37 PM, Tom Kreyche <tkrey...@well.com> wrote: > Search on "Tennis Court Paint" and you will get all kinds of interesting > info...some advertise minimal surface prep and they are non-skid. Most > appear to be acrylic. I haven't used any but am considering for a > schoolyard project as well....Tom > > ------------------------------ > *From: *"rPauli" <rpa...@speakeasy.org> > *To: *sundial@uni-koeln.de > *Sent: *Thursday, May 2, 2013 12:25:24 PM > *Subject: *Re: Advice please: Good outdoor surface for painting an > analemmatic dial > > > Acrylic concrete adheres nicely, takes coloring well. But it is toxic as > it is applied, then dries hard, safe and durable. Any concrete/plaster > provider should have good advice about products that adhere to asphalt. My > local one is http://www.sbsg.com/concrete/overview/ > > On 5/2/2013 11:55 AM, gerard sheldon wrote: > > re: Good outdoor surface for painting an analemmatic dial > > I am helping a local school make a "human" sundial, i.e. an analemmatic > one, and the school is enthusiastic about the idea. (My daughter is a > pupil at that school.) I have been liaising with the art teacher, and > the suggestion is that one or more students studying art would mark out > the layout of the dial on the tarmac/asphalt ground, and then paint on it. > So both a scientific and artistic project. > > The difficulty we face is that the tarmac/asphalt surface is quite grainy > and not good to paint on. Do you have any advice on how to get a good > smooth outdoor surface to paint on (and we want the surface to retain the > paint) ? > > Any advice would be appreciated. > > Thanks > > Gerard > > > > > ---------------------------------------------------https://lists.uni-koeln.de/mailman/listinfo/sundial > > > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > > > --------------------------------------------------- > https://lists.uni-koeln.de/mailman/listinfo/sundial > > >
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