Like Moisture Shield has always done high caliber science and time has gone into it's capstock production.
As the process goes on the composite material is compressed to a very fine grain. Complete encapsulation is accomplished by bringing both the plastic and the wood fibers to just below the flash point then mixing them then rendering the mix to pellets, then going through the extruder at high temperature that builds the cap and the board at the same time.
Really interesting to watch. Same long cooling time accomplished with intricate/fun to watch cooling racks. Eyeball quality control x 7.
The result is a board that can be installed in Any environment with no ventilation / ground clearance requirements . Moisture Shield recommends a simple steel T clip or they can be face fastened .
When I was there MS was running the Graystone color and an Ipe look alike. I have to say as a South American kinda Guy that ipe board looks pretty darn good.
The only down side I could see >> it is a heavy board, much more weight then the regular, because the composite material has been so finely ground and compressed < But it also seems to me to be really strong.
Nice looking stuff.
JonMon
www.deckmastersllc.com