Neil,

I would think something like Fluid Film or Waxoil would be detrimental to the seam sealer bonding to the surfaces and doing its job.  

If I had access to the seams from the backside, I might prime before applying the seam sealer.

On 13-Sep-2014, at 16:39, Neil N wrote:

> And if I may add, be sure that any treatments such as Fluid Film be
> completely removed from the area behind or otherwise near the seam. It
> may creep past the sealant and stain the exterior paint.  BTDT, no
> don't ask!    ;)
> 
> ProForm makes a nice seam sealer. This may be the correct stuff:
> 
> http://www.proformproducts.com/en/products/sealers/urethane-sealers/urethane-sealer-adhesive/
> 
> It may not be that user friendly for the lesser experienced body
> person. Of which I am one!
> 
> Neil.
> 
> On 9/13/14, Roy Nicholl <RNicholl@nbnet.nb.ca> wrote:
> 
>> When you get your Rust Mort, pick-up a tube of seam sealer - it
>> typically/usually comes in a tube similar to silicon or PL for use around
>> the house - and goes in a caulking gun.  Caulk your seams (be sure not to
>> cut the tip of the tube too wide) with a nice smooth bead - like when you
>> run the silicon along the back edge of a countertop - do not smear it all
>> over the place.
> 
> 
> --
> Neil n
> 
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