bubble in gel coat

[njcamper95]

Recently i noticed i have a bubble in the front of my tt right under a marker light on the top front corner of my tt extending down right below my marker light i was thinking a water leak i removed the cover and saw what appeared to be a little left over water marks i siliconed everything around whole camper that even looked like it might be a problem any ideas the bubble is about 3-4 inches wide by about 12-14 inches long doesn't appear to be leaking in or not that i can see so as of right now it is just a eye sore any help would be great

 

[John VN]

Sounds like the beginning of delamination issues. As Barney Fife said, "Got to nip it in the bud."

Sealing at the source as you did is the first step. Repairing the delam. is a whole nother story. Can be very difficult.

Can you hear any water sloshing when you press on it at the bottom? A small drill bit hole can let it drain out if water has collected.

 

[Tigger1966]

Replaced many a front wall because of this just make sure to keep it sealed. If it is a curved area the only thing behind the thin layer of fiberglass is cardboard.

 

[njcamper95]

haven't heard or felt any water in bubble what would be the next step after sealing to stop any further damage hopefully

 

[Tigger1966]

I don't know of any way to get the water out of the wall since there's no air flow. usually the backing is saturated like a sponge and stays that way for a long time so just keep it sealed and hope for the best.
In all the years i was an rv tech we never tried to repair delamination on a trailer front it was either replace the wall or leave it.
Most of the side walls are thicker material and can be cut out by a good body shop and replaced.