So whats the best method ??
Have read 4:1 mineral spirits to 100% clear Silicone.

Reason being is I have about 35' of 68" wide 1oz ripstop in dark green.
Right color, right weight and wide.

I think this is actually the same ripstop that is used by the army for poncho liners and CW jacket liners etc. At least it looks the same.

I am building a one piece narrow cat tarp so I want the widest material I can find. If I work the corners I should be able to end up at 5'-6" wide.

I found the big post multi page thread on the DIY method but was wondering if there was a consensus on the best method. Also what temp is the lowest this will work and how long to dry ??