canid
I just came across this stuff; I haven't used it yet but I'll definitely try it! It's a spray laminate that semi-waterproofs also.
https://texascraft.com/hps/product.php?printable=Y&productid=16152&cat=308&page=1
https://texascraft.com/hps/product.php?printable=Y&productid=16152&cat=308&page=1