Urethane coating on a tarp

[pd]

Please give me some advice.

My beloved tarp (not the blue/grey thing you buy from Costco) needs some TLC.  It is a 5m x 5m (269^ft) awning type tarp, and has been with me through thick and thin.  The undercoating (urethane) has completely faded away, and no longer provides water-proof protection.  The result is rain dripping through the fabric.

I could purchase a new tarp from the manufacturer (in Japan) for $270.  I would like to simply apply a urethane coating to the underside, and give my tarp a few more years of use.  But I can't find urethane in the quantity that I need (and, at the price that is required).  Any ideas?

[ICEMAN]

Ya know...a hiking forum I used to be on had a tutorial where a guy mixed silicone and something...like paint thinner or ?.... Anyway, he was able to effectively re coat tent floors etc and re-water proof them with this mix. As I recall, it was a royal pain in the behind to get mixed. But applied easy with a mini roller.

[pd]

Ya know...a hiking forum I used to be on had a tutorial where a guy mixed silicone and something...like paint thinner or ?.... Anyway, he was able to effectively re coat tent floors etc and re-water proof them with this mix. As I recall, it was a royal pain in the behind to get mixed. But applied easy with a mini roller.

You are killing me.  "To get to Johnson's house, just go down that road 2 or 10 miles, and turn left or right and then...."  Come on, Iceman, mix silicone with WHAT?  Where is this tutorial?? 

But, thanks for any help.  I really want to save this tarp.   

[ICEMAN]

Ok, here is the site, good luck on the search over there...it has been a few years since I have posted there. I bet that tent floor repair thread was atleast 7 years ago....

http://hikinghq.net/forum/index.php

[Fl0und3rz]

Ok, here is the site, good luck on the search over there...it has been a few years since I have posted there. I bet that tent floor repair thread was atleast 7 years ago....

http://hikinghq.net/forum/index.php

Thanks for the tip.

If you are ever looking for a link at a particular site, try the google site search.

Here is what comes up when you search the following

silicone spirits site:hikinghq.net/forum/ at google.

http://hikinghq.net/forum/archive/index.php/t-2388.html

which comes up with this as a link and is responsive to your description.

http://jwbasecamp.com/Articles/Silnylon1/

1:3 ratio of silicone to low odor mineral spirits

[ICEMAN]

Thank you floundrz,   that is the thread......my mind is not failing me!

[pd]

Thank you both.  Checking now...