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Old 18-05-2014, 11:10 PM
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ChrisM
Sandy Ridge Observatory

ChrisM is offline
 
Join Date: Mar 2008
Location: Gippsland, VIC
Posts: 763
New paint system for dome

After five years in the weather, the dome had deteriorated more than I expected so I have just spent the weekend finishing what I started doing on the Labour Day w/e in March: applying a new paint system to the dome.

After cleaning the dome, I applied a self-adhesive plastic mesh to the entire dome surface. The mesh comes in 1200, 200 & 50 mm rolls, so it was a bit of patchwork application, with plenty of overlapping areas. The paint was Granosite, which is very thick and forms a membrane in and over the mesh. I lost count of how many coats I applied - perhaps 6 or 7 all up, taking 20 - 25 litres of paint. Even with multiple coats, the mesh is not completely filled up everywhere, so I hope the surface doesn't capture too much dirt.

Access was gained via a trailer-mounted 34 foot cherry picker.

Chris
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