Hey there fellow Composite Nuts!

I have been making various parts however now i am needing to create a perfect flat panel with a perfect gloss finish... currently looking at various panels/sheets that will be strong enough not to warp or ripple at all and keep scratch free so that either a large fiber glass mold could be made from or infuse off directly.

What economical CHEAP ways do you guys go about obtaining this surface finish?

I have been looking at acrylic panels (although getting a large one isn't very cheap) and whilst writing this post i think later i will have a look at large mirrors.)

Cheers,
Dave.

When i did mine i sandwiched between two sheets of glass which had been thoroughly cleaned, and dried and then i waxed them with a good number of layers both panels of glass both sides and all edges, and also then used PVA release. I would be 98% certain that it was completely covered, and it wasn't just in a specific area where it peeled up, but all over and random. It didn't phase me too much, that sheet i now use as my cars ice/snow scraper in a morning 

I have made several flat sheets successfully by using a piece of 4mm float glass stuck down to a piece of 18mm MDF with double sided tape, the MDF stops the glass from shattering.  I used Meguiars Mirror Glaze No 8 wax for a release which seems to work fine, I applied about 10 layers of it to the glass before using it.