Protecting a new boat cover

Is there any type of spray-on protectant that you can buy to help protect a boat cover. I used the water repellent that is made for tents and seems to work ok. Thanks for any info.

'08 Sea Pro 206cc
150 Verado

Pine needles will eat it up.

Stonoman

303 makes a great product…but its expensive…

If the cover is made of Sunbrella- 303 is the only product Glenn Raven Mills oks for use on their products

Chaos 16 Bonefish Edition