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Best product for leaking roof repair?

using a product called Leak Stopper to fix a leaking trailer roof

This rubberized roof patching material takes advantage of a unique penetrating oil called Penetrex.

You can find it at most stores for around 10 dollars a can.

It's sticky, and messy, and sometimes requires multiple applications. I've got a dedicated pair of gloves and spreading trowel that I wrap up in a bag and store in the roof repair section of our office. It would take way too long to clean all that gunk off the trowel.

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I'd expect that "penetrex" stuff just to be some kind of solvent.

And indeed, looking at the MSDS of this roof repair gunk, that "penetrex" stuff is just Stoddard solvent, aka white spirit. :-)

White spirit is widely used as a paint thinner and paintbrush cleaner. But these days water-based paints are replacing solvent-based paints since long term exposure (think professional painters) can damage the nerves, and it is a known carginogenic (see the MSDS, second page). Wear gloves that block it. Butyl rubber should work, I think. Leather probably doesn't.

Definitely use separate tools and gloves for this stuff.

So what you've got here is basically a heavy crude oil destillation leftover (asphalt), diluted with white spirit. :-)

Comment by Roland_Smith Sun Jul 31 00:34:32 2011
Looks like I need to get Mark some more serious gloves....
Comment by anna Sun Jul 31 08:50:51 2011

One very unique homestead, $1,500 per acre, the opportunity of a lifetime