I have a small depression after of the mast bulk head and thought about adding a stainless plate on deck for the mast step to sit on


Make the stainless plate at least twice as wide and make a bed on deck for both to sit on. . While making the stainless plate Ill mount some block fittings so If I ever want to run my halyards back to the cockpit the mountings would be there.
Dose any one think there would be a problem with miss match metals thats is the mast step is Aluminum and the mounting pad would be stainless steel I'm thinking 3/8 thick s/s plate

Hi HG

I am not a expert but When you attach stainless fittings to alloy masts or boom you would normally use Duralac www.whitworths.com.au/duralac-jointing-compound-115ml between them so it would probably do the job

Regards Don

I just restored my small depression / 10 mm and tilted /.
SS plate is probably good idea, with some silicon layer between,
to prevent corrosion between ALU and SS.
I would investigate what gave up to create is depression.

in my case it was rotten ply under 10mm thick cabin fibreglass.
Ply was in inner hollow about 25mm thick when new, about 45 years ago.

If you have similar problem, there is guarantee, SS plate wouldn't stop
further sinking the foot of the mast.

I would make a "gasket" out of a kitchen polyprop cutting board or similar between the alloy and SS.

Select to expand quote

Charriot said..
I just restored my small depression / 10 mm and tilted /.
SS plate is probably good idea, with some silicon layer between,
to prevent corrosion between ALU and SS.
I would investigate what gave up to create is depression.

in my case it was rotten ply under 10mm thick cabin fibreglass.
Ply was in inner hollow about 25mm thick when new, about 45 years ago.

If you have similar problem, there is guarantee, SS plate wouldn't stop
further sinking the foot of the mast.

Many years ago a moored yacht close by lost its mooring and pulled down the mizzen mast on my boat. Id say that it also put tress on the main mast when it happened . Ive looked above the bulk head inside the cabin and its only a slight depression is sloped back towards the after of the boat.. I also want to fill in the cabin to mast cable holes as where they were they came out inside the main cabin and looks ugly to me . So Ill fill those holes as well and start fresh

it looks to me, solid fibreglass .
Spread the pressure to large area is the way to go.
just make sure, there is no soft inset between layers
and previous stress did not weaken a mast base.
meaning.. sinking the mast will not continue when tension is set

filling the holes, I wouldn't stress too much, just fill up with silicon .

Select to expand quote

Charriot said..
it looks to me, solid fibreglass .
Spread the pressure to large area is the way to go.
just make sure, there is no soft inset between layers
and previous stress did not weaken a mast base.
meaning.. sinking the mast will not continue when tension is set

filling the holes, I wouldn't stress too much, just fill up with silicon .

Thanks for the input Charriot