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Old 10-31-2018, 09:04 AM   #1
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Crack in Shower wall/surround

When we were winterizing and cleaning we found a crack in our shower wall/surround. It starts on the edge of the shower surround and goes past the shower "glass" and into the shower by about 6 inches. I am sure I will eventually have to replace the shower surround but is there a way to patch it? The surround is not tight up against the wall and so it flexes. That flex means that caulk will not work very well on it. I was thinking of finding a piece of plastic that I could then glue (plastic glue) and caulk it over the seam. I don't have any plastic in white or cream color but I do have some in black. It won't match but it might hold enough to keep water from getting behind the wall and down into the storage area. Thoughts?
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Old 10-31-2018, 09:08 AM   #2
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Originally Posted by Electra glide View Post
When we were winterizing and cleaning we found a crack in our shower wall/surround. It starts on the edge of the shower surround and goes past the shower "glass" and into the shower by about 6 inches. I am sure I will eventually have to replace the shower surround but is there a way to patch it? The surround is not tight up against the wall and so it flexes. That flex means that caulk will not work very well on it. I was thinking of finding a piece of plastic that I could then glue (plastic glue) and caulk it over the seam. I don't have any plastic in white or cream color but I do have some in black. It won't match but it might hold enough to keep water from getting behind the wall and down into the storage area. Thoughts?

Eternabond tape will probably make a good temp fix. Id drill a small hole at the end of the crack to stop it from spreading then apply the tape over it.
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Old 10-31-2018, 09:10 AM   #3
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There's a way, but it's over my head. First FROG I went to, we had a big screw-punch hole in shower. FROG sent some kind of fiberglass (?) repair guy and he worked about an hour........filling, sanding, buffing, etc.......and it's like new. But as for SELF repair, I have no clue, sorry.
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Old 10-31-2018, 09:11 AM   #4
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Eternabond tape will probably make a good temp fix. Id drill a small hole at the end of the crack to stop it from spreading then apply the tape over it.
I didn't think about that Eternabond. I don't have any currently but will order some or see if the dealer has any. The RV is in repair currently for a tire blowout that happened back in August.
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Old 10-31-2018, 02:05 PM   #5
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How about epoxy applied with a toothpick? You can help it into the crack with compressed air
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Old 10-31-2018, 02:23 PM   #6
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Flextape form temp fix.
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Old 10-31-2018, 02:31 PM   #7
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I have the same problem except mine was up near the shower head anchor. I used plastic bondo. Its very tedious. But it works.

First I got the smallest drill bit I could find. Used a magnifying glass to get right at the end of the crack on both sides and drilled it.

I used painting mask to get close to the line on both side of the crack. Once this was done I cut off some bondo mixed it up and used medical gloves to force it into the crack.

I only got about 30% the first time. So then I had to work it about 5 times like this.

Good luck.
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Old 10-31-2018, 02:48 PM   #8
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Syringe and epoxy I’ve done it a dozen times on things like this. Flex it to open it up, inject it and pull it closed with gorilla tape.
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Old 10-31-2018, 03:01 PM   #9
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I've had good luck with JB Weld, might not match color exactly but it will seal the crack. You can sand it flat after it dries
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Old 10-31-2018, 08:28 PM   #10
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3M 5200 may not be pretty but it is water tight. I use it for intrusions on my boat below the water line. It is pretty much considered a permanent patch. I've used it on a no-no on the edge of my trailer roof four years ago and it is still good.


Epoxy may work also. I use marine epoxy on many things. It is readily available at most big box stores.
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