Ever use Flex-Seal (as seen on TV)

http://www.asseenontv.com/flex-seal-clear-stops-leaks-fast-the-clear-alternative/detail.php?p=458384&v=outdoor

My sailplane trailer has a leak in the roof, there appears to be a thin spot in the fiberglass lid. Osmosis or migrating through in heavy rains. I don't want to glass in a patch, looking for an easier fix but not a temporary band-aid.

Any thoughts?

Dan

I have never use it but we use to have this stuff that was basically liquid neoprene. You could paint it on of spray it thinned with if I remember either acetone or MEK. It was fantastic for your type of problem but the new VOC reg's made it go away. Speaking of VOC I wonder if the flex seal is VOC compliant.

I have used Flex Seal. It sprays out thin and should work. It is supposed to be UV safe.

Hey, it made that boat float with the screen door in the hull

I used something similar to seal up the rearend on an Isuzu box truck where it had rusted through. It was a black product made for sealing boat hulls.

The "as seen on TV" Flex Seal isn't worth wasting your money on, BTDT. I got some Leak Stopper at Lowes and it worked very well to seal up a cracked concrete birdbath.

We've used a product called "Apache" that is about the same as flex-seal. It works but needs to be reapplied ever year or two.

Sounds like a coat of paint might work? I've heard good things about rustoleum appliance epoxy as a top coat when doing fiberglass boat repair on the cheap.

Try this and if it doesn't work, just peel it off.

http://www.eastwood.com/elastiwrap-aerosol-white-lightning.html

If I can peel it off, can't water get under it?

I made a boat from a screen door once....

In reply to Woody:

Plasti-dip and elastiiwrap aren't the same as the flexseal style products. I've tried both, and they have very different textures. The flexseal stuff seems like it will try a lot harder to stay stuck to stuff.

Full disclosure: the stuff that I used was not the As Seen on TV brand. When I get home I'll pull it out and see whose brand it is.

The flex-seal stuff is a lot like spray-on Right Stuff. Once on, it's permanent without angry and violent removal methods.

The flex-seal stuff is pretty much rubber undercoating in different colors.

In reply to EvanB:

I wondered that when I saw the first commercial for that stuff.

Ha funny seeing this thread, I just used can of that stuff to seal up some leaky gutter joints yesterday. Worked like a charm.

3M makes products designed for trailer and RV sealing and repair

I'd go with what is designed to get the job done

Something like this could work as well depending on how large the thin area is:

http://www.zoro.com/super-glue-fiberglass-patch-white-3x6-in-uv-cured-15298/i/G2099176/

If it's fiberglass why not just brush on some resin? No need to mess with the glass itself, but a little resin and some thickener and smear that E36 M3 on - done!

What's wrong with fiberglass? Hit it with the DA and 80 grit, paint down some resin, lay the cloth, dab more of the resin into the cloth until it turns clear. Come back tomorrow and sand some more, then paint if you feel like it. Probably cost you $20.