Looking for info on repairing my bathtub acne.
My house was built in 2002. It has a single piece bathtub with wall
surrounding it. I think the tub and surrounding walls are fiberglass
but I am not sure.
We have a young daughter, so to entertain her while bathing we bought
some 8x11 sheets of plastic that have pictures of animals and shapes.
These sheets are the kind that stick to the wall when they are moist.
The sheets have been on the bathtub walls for a few months. We noticed
that when we removed them yesterday that there are a bunch of 1/4 inch
bubbles that have formed in the fiberglass wall. In total there are
about 50 bubbles that have formed behind the plastic sheet that we had
I am trying to figure out the best way to repair. I see that there are
repair kits to fix cracks and holes but I don't see mention of
bubbles. Can I sand these out and then use a kit to repair the tub?
I would guess the tub is polyester resin which does tend to degrade when
wet, particularly when acidic or basic. I would think that sanding
would wear through any gel coat making it worse. Maybe someone sells a
kit to fix your problem. Try to contact manufacturer. Google got many
We bought our last house new. I went in during construction and found
6-8 framing nails that were shot through the fiberglass surround from
the back side. The builders brought a guy in to fix it. After the
work, I could not detect where the original holes were. Excellent work
by the repair guy.
Back up a bit here, sport, and let's gather up a few solid facts.
First, try to determine the manufacturer of your tub assembly. Reason
being that their customer service will be the best source of ways and
means to make a reasonable repair. They likely even have repair kits
to help the luckless installer or contractor who has had a mishap with
the product. In describing to customer service what happened to the
tub, consider this scenario: the applique you cemented to the tub had
an adhesive that was formulated with some resin or another. To keep it
gooey, the resin is blended with a plasticizer. Plasticizers are often
very high molecular weight relatives of solvents like lacquer
thinners. But they have extremely low vapor pressure and tend to
evaporate at rates measured in decades. However, they can migrate into
other plastic substrates, which is what has happened in your case,
causing delamination of the plastic surface and hence, a bubble. If
this is the case, there is a chance the process could be reversed by
gentle and prolonged heating of the tub plastic, logically a
temperature below the boiling point of water. The slow evaporation of
the plasticizer might allow the bubble to shrink. If the manufacurer
custimer service engineer has no better idea, then it might work for
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