Neil,

I'm now following the bouncing ball.  I had equally assumed removal of all prior gunk would happen during the preparation phase ;-)

The clarification is a good thing ... hopefully Brett gets what he needs from it.

BTW:  If you have fluid film leaching out of the seam, it is quite likely you have water making its way in.

On 14-Sep-2014, at 01:28, Neil N wrote:

> I totally agree Roy.
> 
> My wording might have been a little poor but was suggesting removal of
> that type of product in case it had already been applied to the
> backside of the panels in question.
> 
> In my case, I'd sprayed Fluid Film on the backside of panels months
> before finding a failing seam and repairing it. Some time after, when
> the bus was parked with that panel toward the sun, the Fluid Film
> crept out and stained the paint.
> 
> I had good intentions, but made a rookie mistake.     ;)
> Which is too bad because the repair turned out well otherwise.
> 
> On 9/13/14, Roy Nicholl <RNicholl@nbnet.nb.ca> wrote:
> 
>> 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.
> 
>> On 13-Sep-2014, at 16:39, Neil N wrote:
> 
>>> ... be sure that any treatments such as Fluid Film be
>>> completely removed from the area behind or otherwise near the seam.
> 
> 
> --
> Neil n
> 
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