THanks all for the responses. Based in part on responses here, we've gotten a bit smarter on this stuff.
In decending order of price/durability, it appears there is Makralon, Strataglass, pressed/polished vinyl sheets
, and roll vinyl, in various gauges.
Makralon isn't a good option for us, if only because we roll up the center panel in the dodger up for a breeze through our center cockpit
, and Makralon doesn't roll.
Strataglass gets lots of votes here and elsewhere, but runs around $210 per sheet, and we'd need 3 sheets
for our dodger. From a couple of professionals in the canvas business, we've been quoted "about $120 to $150 per sheet more for Strataglass".
Pressed/polished vinyl sheets - this is what is being proposed to be used for our dodger, in the Regalite brand. I found it for $105 per sheet (5 sheet minimum) on line somewhere. So, compared to Strataglass, its about 50% the price
. What differentiates Strataglass from Regalite is the special coating (scratch/UV resistant) on Strataglass.
Rolled vinyl - this is the cheap stuff, with pretty bad opticals I think, and not what we're proposing to use.
We would use 40 guage, and at this point we are leaning towards NOT paying the extra $315 to $450 for Strataglass ($105 - $150 per sheet difference in cost, times 3 sheets). (Maybe if the HP injection pump wasn't at the shop right now for rebuilding we'd be less price-conscious :-) )
The real test, I guess, would be to do one front corner of the dodger in Regalite, and one in Strataglass, and see how they look in 3 years. I'd consider doing the center panel in Strataglass, and the corner panels in Regalite, but the cone thenter panel is the at will be rolled up and down, and so will get more wear and tear.
Thanks all, and if anyone thinks we're making a bigger-than-$450 mistake by going with the less expensive Regalite vs. Strataglass, please feel free to let us know.