I am in the process of putting in new floors in my Cadillac, and I remember seeing on here another thread where after they finished welding the floors in, they coated the seams with some sort of sealer to prevent issues down the road. Anyone had any recommendations on what to use? Thanks!
Auto paint stores have several different kinds of seam sealer, there is the old fashioned stuff, and modern urethanes, both single and two part. Some need the metal to be primed first, others don't. I did some research on it a while back and got totally confused....have fun!
Hmmm this might be the way to go. I bet the one that is supposed to be for cars is the same stuff just more expensive. Ill have a look see at lowes today
Floors are easier since they never see the sun (if you're lucky). Spend a little on the brushable, self leveling automotive seam seal for them. If you need to do things outside the car like drip rails, cowl seams, pinch welds, etc., even if they get painted, step up and buy the two part urethane heavy body products from Norton or SEM. Some auto paint stores will rent or loan you the gun required, or you can find them on Amazon or Evil-Bay relatively cheap if this isn't your last project. Single part sealers, even good urethanes will shrink and crack out in the sun over a few years and then you get to grind them out and start over.
Try a marine-grade polysulfide sealer. Most marine places have an****ortment. Look at this one. Seems to have a slow cure time though, although I think many others would too. http://www.westmarine.com/buy/boatlife--life-calk-sealant--P004_127_003_003
my local Napa Auto has SEM 2 part urethane (used on the exterior, say the roof where shrinkage would be an issue) and one part from 3M or SEM for floors/hidden areas
we use one of the three , 3m, norton or sem . basically the ones we use are all the same ( brushable single ) just a different label on the can , and being inside the car it will last forever if the car is garage kept or kept in a dry area once painted . just follow the directions and do not rush the job . we also use the old rope type too . its messy but you can pack bigger gaps with it .
Stimpy, what is the rope type you mention? I've got an opening about the size of a dime (maybe smaller) where the floor pan/toe board/inner rocker all converge and I'm looking for something to fill it with. Thanks Posted using the Full Custom H.A.M.B. App!
its not for filling holes its for doing seams as if it gets warm it falls out ( as it melts to fill the gaps ) . try to fill the hole with weld and a copper spoon then seal it the stuff we used was a 3M #08758 they used to sell it in 100' rolls now its in 1 'sections ,
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