Re: Canvas Snaps - Nickle Plated Brass vs Stainless Steel
<------from an upholsterer. Both will maintain in the marine environment just fine. I have been using nothing but nickel plated brass for the last 10 years and have NEVER had to replace a snap due to corrosion. SS are good as well, but the problem is that they are much softer than nickel and tend to warp out-of-round much faster. In fact. if it as a poor grade of SS, they will leave rust stains.
BTW, to keep your snaps operating as perfectly 10 years from now as the day they were installed, dab the socket portion (female part) with just a touch of Chapstick once a year. I have been doing it on my boats for as long as I've had them and I never have a tight or sticking snap to content with. They are still bright & shiny and snap on/off as easily as ever.