Way more than what you need, but this grill cloth works well treated with the Kiwi camp dry as Outkast pointed out. BTW, the Kiwi can be found cheaper at Walmart.

 

thats where I got mine. Searched the whole store twice and nobody knew what the hell I was talking about. Ended up finding it in the shoe dept

 

Cut a section off, more than you need and hang it up with cloths pins. Put a coat on each side, let dry for a few hours and repeat. That should do it. I store treated and untreated Separately in a zip lock bag.