[ATM] Light-tight Tarp Resource?

[Gert Gottschalk]

Hello All,

What is a good source of a light tight tarp? I need to
shield street lights from my observing spot. A tarp
about 10ft x 6ft and some rope would do. But where to
get proper light tight tarp material? I looked at home
depot and the blue woven plastic tarps they had were
very transparent. No shielding at all. Unusable! I was
thinking of the stuff that is used as drapes in
physics class rooms to make them completely dark. But
where to get that stuff? Or something equivalent and
cheaper? Weight would be an issue, too as I have to
string the tarp up every time I observe. Your
suggestions and pointers are appreciated.

Clear Skies,
Gert

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