Trek7 Aqua Armor for Tent and Gear

I have had to constantly search for new products to waterproof canvas pillows that I paint as an artist. When I find something I like, it either becomes unavailable or the formula gets changed and the odor factor becomes excessive and toxic. Aqua Armor does not smell and I will continue using it. I have no reference to the effectiveness compared to other products. I would give it five stars, but I ding it one star for being close to twice the price of other products. The manufacturer should consider a more attractive price.