Guns, Bows, Shooting Sports, and Hunting Silicone Spray

[HSpiering]

I have three cans of Silicone spray. One Camp Dry for shoes tents etc. The other two are for electrical and one Gunk auto Silicone. Anyone know the difference? I was wondering if all three could be used on a canvas surface?

 

[SRath]

Are you looking to waterproof? There are probably better products for doing that, Scotchguard, Thompson's Water Seal (like you use on your deck), and I'm sure there are others. But I tend to think silicone is silicone; the difference would be in what propellant is used. Can you test an inconspicuous area with each first?