Dew/light shield material?

[Ronseal]

Hi, I've previously made a dew shield for my telrad out of 2mm craft foam and works very well, & now want to make a dew/light shield for my 150p mainly to keep stray light out from street lamps & floodlights.

I've searched & read numerous posts and thought I'd found the ideal solution, a tesco yoga mat. First visit they were out of stock, tonight they were in stock but only had pink or turquoise! I also didn't like the pimpled surface either.

So, I need a plan B, what material on fleabay should I be getting ie type of foam? (I've seen neoprene suggested, but being a scuba diver I don't rate this for holding its shape) Any suggestions welcome,

Thanks

[laser_jock99]

A camping mat?

[Guest]

Decathlon are selling black camping mats for 3.99 just now. About 5mm thick foam

[Tinker1947]

Cell Foam, its water proof, comes in various thicknesses, duck tape stick to it......

[Steep]

I bought this last week, the foam is pretty rigid, more so than the cheapo one I got from Tesco a few years back for my 127SLT.

http://www.amazon.co.uk/gp/product/B005XCJVQY/ref=oh_details_o02_s00_i00

[Barfbagger]

I used the same thin neoprene sheet to make a shield for my Skywatcher 300, I just used two layers stuck together with spray adhesive. However, when I stuck the two pieces together I wrapped the first one round the tube so that the finished sandwich has a natural curl to it which matches the tube.