Even though a fiberglass shower stall usually can’t bend contrary to the framing enough to decipher smoothly, the sharp and focused effect of a substantial object can be sufficient to decipher it. It’s important to repair cracks in the wall or pan as soon as you detect them, since they can permit water to leak into the framing, and it does not take long for the water to rot the wood. An epoxy repair program works best for wall repairs, yet to repair a cracked pan, then you should rely instead on a custom-made add for strength.
Put on goggles, a respirator and gloves, and turn on the Designer Bathroom Concepts Pittsburgh exhaust fan. Grind a bevel about 1 1/2 inches wide centered on the crack with a rotary instrument and an 80-grit sanding attachment. The purpose of the bevel is to provide surface area to that the fiberglass repair tape can stick.
Lay cellophane tape across the boundaries of the bevel to keep the repair materials off the undamaged surface of the stall.
Mix epoxy fiberglass repair leaf using the hardener that comes with it from the proportions recommended by the producer. Spread it inside the bevel with a little paintbrush.
Cut a piece of 9-ounce fiberglass cloth from a roll that’s wide enough to fill the bevel, wet down it with the epoxy and then lay it about the crack. Cut a smaller piece of tape, wet it down and lay it on top, then lay an even smaller slice on top of that one. The last piece of cloth should come flush with the surface of the stall.
Permit the epoxy to cure overnight, then blend enough two-part polyester fiberglass filler to cover the repair. The filler is similar to auto-body filler. Choose a shade that fits the shower stall. Mix it with hardener and then trowel it on with a plastic putty knife. Let it cure for 20 to 30 minutes, then sand it flat with 120-grit sandpaper.
Pull the shade, if necessary, by spraying the repair with epoxy touch-up paint. If the color and sheen of the paint are not an exact match to the stall, think about spraying a wider area or even the whole stall.