On 5/18/14, 12:30 PM, wrote:
On Sun, 18 May 2014 07:32:01 -0400, H*a*r*r*o*l*d
wrote:

On 5/18/2014 12:20 AM, wrote:
On Sun, 18 May 2014 00:06:53 -0400, Earl wrote:

wrote:

Stainless is better but still not totally immune.
If you use stainless, put some TefGel between them and use only 316
stainless parts.
Here's one chart. The closer there are, the better they work with each
other:

http://www.corrosionist.com/galvanic...sion_chart.htm

Stainless looks a lot worse on that chart than reality.
My boat is bolded together with stainless fasteners, it gets dunked in
warm salt water about 100 days a year for the last 40 years and I am
not really seeing that much trouble.

Could be that your boat isn't made of cheap aluminum designed for fresh
water use only.

I still wonder if those "stainless" snaps are not actually chrome over
brass. Stainless corrosion on aluminum would be a white powder.

Again, look into "TefGel" that is what the bimini top installers use
when they put stainless screws on aluminum pontoon boat rails.
It creates that barrier you need.
http://www.tefgel.com/contain.php?param=tefgel_infor



I see FlaJim is still the same insulting asshole he's always been. Must
be tough stuck in the 7th grade as long as he's been there.