12 year old fiberglass tub originally white, now

Even caked-on iron and rust stains can be removed with a little effort. Apply your chosen cleaners to fiberglass tubs using a soft sponge, a nylon, polyester or polyethylene brush with soft bristles, or a soft cloth. Do not use abrasive cleansers, steel wool, abrasive scrubbers or scrapers on the fiberglass tub or shower surround, as these can scratch the fiberglass--in a gallon bucket: 2 tablespoons of white vinegar, 1/2 cup warm water, 1 2/3 cups of baking soda and 1/2 cup of a liquid degreasing dish detergent. Apply the solution directly to the stain and let it sit for an hour before rinsing and wiping clean.
A vinegar-and-baking soda paste applied to stained areas creates a chemical reaction that can remove the stain through the fizzing action generated by mixing backing soda with vinegar. Apply the vinegar and baking soda paste directly to the stained area and let sit for 15 to 20 minutes before rinsing and removal.

Cheap plastic fatigues with heat . Silicone will work but will not keep the crack from continuing. The fix depends upon what type of plastic you have . It is likely a polyester like fiberglass in which case you can use regular fiberglass to fixit . Rough up the outside with 80 grit , brush in fiberglass resin ( don't forget to mix in hardener) lay in glass material , repeat until built up . Repair the front with a good "gelcoat " repair kit which allows you to mix match color.. sand with 220 , then 600, then 800, then 1500, then 3000 , polish with automotive whit polishing compound , wax

try jumping the solenoid. it might be bad.

Hello, W/D here.
If you washer is still in warranty, you should let the company make it right.
If not, you can make repairs yourself. First, determine why the leak occurred. One common problem is a loose or damaged counterweight. If loose, it will need to be tightened up. I have seen a counterweight that was pre-stressed, with a rod between the mounting points that had broken, allowing the counterweight to hit the strainer. This can be repaired by replacing the counterweight part, or by strongbacking with aluminum, and epoxying the weight back into a solid mass. Epoxy also is useful for repairing cracks in tubs. I roughen up the area to be epoxied and apply fiberglass mesh (the self adhesive wallboard tape) to the area, and then applying J-B weld. I've never had a repair like this break. For your repair, I would recommend that you build the joint up well, with layers of the fiberglass tape and epoxy, and feather the repair out onto the drum surface area several inches. The fiberglass tape can be cut into strips and applied like a bandage, if you need to make wraps. Overlapping the joint of the tape pieces contributes to the overall integrity of the repair. Just don't put down so much tape at one time that the epoxy can't get to the surface of the drum. Several layers, with curing time in between applications is the best way to go. Depending on where the crack is, the repair is easier to apply if the surface is more horizontal than vertical as the epoxy tends to try to run until it sets, so try to place the washer in a good position, if possible. Removing the tub may make this easier for you, but it isn't critical. If you DO remove the tub, make a similar epoxy repair from the inside of the tub, if possible. This will provide greater strength and sealing.
Hope this gives you better options, --W/D--

My kayak was nearly 30 years old & exposed to the elements all the time. To clean it up, I washed it down with the Amway Car Wash & polished with the Amway Silcon Glaze car polish.

The kayak came up beautifully & I'm still using it today

You can't.You will have to wet sand and gel coat it.I would hire a pro painter to come in and do this.

There is really no easy way short of sanding lightly and repainting. (I am told that "tremclad" paint intended for exterior use on metal in tough situations is good for this kind of thing.)

Wax (car wax or wax for fibreglass boats--which is often available in colour) will work for the short term.

From my own experience I had a crack in mine. I sanded the area I wanted to patch. I bought a fiberglass repair kit from the hardware store. I mixed the hardener with the resin and applied it without the cloth. Make sure you have good ventilation and don't get it on your hands. After it dried I sanded it smooth it didn't look the best so I hit with a little spray paint. I have since replaced the tub but it held until I was ready to do that. A couple of years. Hey if this helps give me a vote please.

keep caulking or change to ceramic tile, or one piece shower units ,without seams

Acrylic is a solid sheet material that is heated and vacuum formed to the desired shape. It is then reinforced at the back with fiberglass to give it strength. It is a higher-end material, very durable and super easy to clean. Fiberglass is a material that adheres to a mold and then a gelcoat finish is sprayed onto it. The most common material used in tubs and showers and is the most economical. Cast iron tubs are forged and the finish is applied in powder form while the tub is hot causing the finish to melt onto the cast iron. Synthetic tubs are molded and then a gelcoat finish is applied like the fiberglass tubs.