So time for my $.02
During the week that I bought Wally, I began doing an extensive call through of all the Line-X dealers in SE/E TX for the availability of Line-X Platinum.
After about 3 hours of calling around and searching online I found zilch. Line-X Platinum was to drop July 2013 but truthfully most dealers even at this point will be getting the new nozzles and mixes for Platinum anywhere from now till January (in MD).
Anyways, here's a quick break down:
Standard LINE-X; XS-100
"...a polyurethane/polyurea blend, is the most widely used formulation. It exhibits excellent protective benefits along with economy. It has a textured finish and excellent elongation. This version is the most widely used because of the wide range of applications and is suitable for 90% of industrial applications. It remains flexible from -40 degrees to 220 degrees F and can be stretched to greater than twice its original shape (115%) before breaking..."
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Line-X Platinum; XS-330
LINE-X has improved spray-on bedliner protection at the molecular level. LINE-X Platinum uses a pure polyurea technology that combines strength and flexibility to create a product with superior toughness making it the next generation of spray-on bedliner performance. Platinum is 300% "tougher" than Premium and is available in fade resistant black or color matching. If you're reading this, I challenge you to find a tougher bedliner coating!
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Line-X 350; The Real Stuff/SHTF/Working-Man
Like its sister product XS-310, XS-350 is a pure polyurea coating with high performance physical properties perfect for applications beset with chemical damage or extreme impact and abrasion. XS-350 is very insensitive to moisture and can be seen widely used in the wastewater industry.
^This is what I have, if you have any questions ask.
It's better than Platinum and I got my bed sprayed w/ UV Stabilizer for $749 (w/ tax)
I know quite a bit about Line-X in general and have been on the sidelines listening to the arguments between Polyurea and Polyurethane liners from:
Speedliner, Rhino, Scorpion, and Line-X; I'm biased as hell but I can say the application processes are different but so far Line-X is my #1 choice because it does not kill the environment...