This product worked better than I expected for my small repair area. Getting the full kit with higher cost of $20 ensures that you have what is required for the entire patch process, but after going through this once, I would be tempted to get the lower cost competitor package of epoxy only, though there is the risk that the specific epoxy formulation may not be as good as in this kit.The color match of white is not great, but youâll just have to accept that. There is probably no great match to any color, though I thought that âwhiteâ would be straightforward, but my wife seemed to understand the many variations of white. This epoxy had a faint blue-gray tint as compared to my shower stallâs version of white.My repair was of two small areas where I hit the side of the shower stall with the plastic portion of a scrub brush while scouring the textured floor with comet. The fiberglass wall must be very thin there, since I did not whack it very hard, just bumped it while scouring adjacent to the wall. One spot punched through, making a hole about 5mm in diameter and a couple of hairline cracks radiating out another 5mm. The other spot did not punch through, just a couple of hairline cracks about 10mm long.To clean the patch area, I lightly scrubbed the surface with a sponge and comet, thoroughly wiped off the comet with a wet sponge, dried the area with a cloth, then wiped it down with the provided tiny alcohol pad, then some more with a lint-free cloth and my own isopropyl alcohol.In hindsight, I should have used the familiar âfrogâ tape used for trim painting to mask the limits of where I wanted to apply the epoxy, then peeled it off while the epoxy was still mushy. This would have helped to guide me when smoothing the surface of the epoxy and blending it to the surrounding non-damaged area without worrying that I was spreading it everywhere unnecessarily, as well as defining a nice clean border.The epoxy has a very strong volatile odor, so heed the instructions to have good ventilation in the area, lest you start hallucinating and make a big mess of the patch job. For this small job, I did not need to use Â½ of the small jar of epoxy as the instructions say, just 1/8 of the jar was more than enough. The instructions say to use 3-6 drops of hardener for Â½ the jar, so I used 1 drop for 1/8 of the jar, it seemed to work. I mixed the epoxy and hardener on a piece of folded aluminum foil, rather than on cardboard as the instructions say. The instructions say that there is a 15 minute working time depending on the room temperature, my mix ratio gave at least 20 minutes before the waste epoxy on the aluminum foil started to firm up.Wearing disposable plastic gloves, I spread the epoxy onto the patch areas using the small wood stick, and pushed some into the small hole with a gloved finger. I left about 1/16â of excess height with the epoxy since it shrinks upon curing. I was worried about difficulties of having to sand away too much after it cured, but the later sanding operation was easy, so do not worry about getting the epoxy blob perfect. I used isopropyl alcohol on the lint-free cloth (used earlier) to wipe away excess epoxy around the perimeter of the patch.I let the epoxy cure for a full day, as opposed to the minimum of 3 hours per the instructions. The kit provides small squares of 400 grit and 600 grit wet-use sand paper, and polishing compound. It is very important to wet the paper with water to obtain a good finish (note that not all sandpaper can be used wet). The small squares were sufficient for my patch, but a patch that would have required Â½ of the jar or the full jar of the epoxy would probably require a full sheet of wet-paper. If you need a larger piece of sandpaper, be sure to purchase âwet-or-dryâ sandpaper.My patches were on an inconspicuous vertical surface, nevertheless I tried to limit sanding beyond the patch to avoid scratching the surrounding area. The surrounding area did not seem to be marred after the sanding and polishing, but the angle of light at the patch location may not have revealed slight blemishing, even with a spotlight. The epoxy sanded down easily using the 400-grit paper with only mild pressure, the cured epoxy was softer than I expected. It helps to use a flashlight or other source of light held at various angles to the patch to reveal spots that need sanding to blend into the surrounding area. Likewise the 600-grit seemed to provide a nice finish with finer blending. I used a damp lint-free cloth with the provided polishing compound, and buffed well outside of the patch area to make sure that I polished out any scratching from the sand paper. The polishing compound comes in a small packet where your tear off the top, so I do not know if it will dry out and be useless if it is stored after opening. Iâll try taping the top closed to prevent drying out, though I hope to not have to use it ever again.In the end, the small patches appear better than leaving cracks or getting a whole new shower stall. Iâll have to see how they hold up with shower use.
poor color match