Removing old seam sealer

[Patrick Browning]

I received my new to me Rainbow yesterday. The previous owner used a urethane seam sealer and it's flaking off. What's the best way to get all of it off so I can re do it the right way?

[Brad Walker]

You could try using mineral spirits (just like some use to thin seam sealer when applying) to re-dissolve it and then wipe it off. Just soak a rag or brush and start scrubbing. I have no idea whether this works or not.

I'm sure someone with actual experience will come along soon….so free bump :)

[James Marco]

For urathane, you could try Acetone or toluene. But be carfull about any fabric. Some of the polyester types will also disolve. Cotton and nylon appear to be immune to it as is PET.

[Patrick Browning]

I had a buddy here suggest that I just seam seal the inside of the tent. In the meantime, good thing the wife is out of town. I have it setup in the living room in free standing mode (very cool BTW) flaking off the old stuff by hand….

Agree with your buddy, just seam the inside.

You could also apply bonding tape on the outside over the flaking off stuff and that could help a bit.

[Roger Caffin]

Urethane seam sealer oon a silnylon fabric? Yeah, that's going to peel!
You could try a few strips of sticky tape: it might stick to the PU and pull it off. Let it bond for a few minutes first.

Cheers

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