Apparent Mold in Nonskid - Need Solution Please
We are getting what I believe is mold, growing in our nonskid. This is molded (no pun intended) gelcoat nonskid, and the suspected mold begins looking like black dots. It happened last winter, and was not a problem over the summer. As we get less sun and more moisture, the suspected mold is visible again. I am relatively new to the PNW and I believe many of you have experience I would find useful.
It does not wash away with Zip Wax soap and water. I used Davis FSR last winter, along with a stiff brush, with some success. It seems to grow back fairly rapidly.
I would like to remove it and prevent it if possible. IRENE lives outside on the trailer and gets washed weekly. I do not wish to use a product that will remove the wax from the other surfaces. I am considering trying plain water with a power washer, maybe a car wash to start.
Any and all thoughts and advice are appreciated.