Flex Seal as a seam sealer

[woodstrooper]

I have replaced my 1979 C10 shortbed inner and outer rocker panels, kick panels, floor supports and floors, and cab corners.  I'm wonder if the product seen on TV (Flex Seal) would make a good seam sealer if sprayed over good metal.  I feel it may go into the little nooks and crannies better than the conventional seam sealer that's applied with a caulk gun and smoothed with your fingers.  Does anyone have any thoughts on this?

[linville_33]

My buddy use it and chicken wire for his floor patch in a ranger and never leaked.

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[morrow07]

It feels very odd pushing a, "as seen on TV product" but, the stuff is awesome. I have used  it in a pinch as temporary seam sealer at work (HVAC). Seals great, goes on easy, and if you mask off your seam, it looks pretty good. It resembles spray in bed liner when cured.

[Captkaos]

Keep in mind drain areas and moisture when "sealing" things up...

[78 Chevyrado]

biggest question as to using it for seam sealer is, IS IS PAINTABLE.  if so, knock yourself out..  if not don't use it on stuff you want to paint.

[audrima]

I sealed my travel trailer up with this stuff, but I did not use the "as seen on tv stuff" you can get the same stuff cheaper at an auto part store (or walmart) rustulem make is. it's just rubber bed sealer. :>


Mariah

[Greybeard]

I was kinda thinking it was along the lines of rubberized undercoating. I put a new gas tank in my truck when I was building it a few years ago and used that. Easy one. I've used it on lower rockers fenders and door bottoms too to keep rock chips at bay. The Napa stuff is the easiest to use but not the least expensive.

So is the TV stuff different? Inquiring minds want to know. 

[audrima]

only the extra $5-$10 it costs, dad bought me a can, and it was the same stuff

[morrow07]

Lowe's has it for $8 per can. There is another brand they sell as well that goes for $7 per can.

[Greybeard]

The good thing about the Napa brand rubberized undercoating is that it comes in any color you want... as long as it's black.