As it has been said already, micarta is fine...
Micarta Test Thread:
https://www.bladeforums.com/threads/micarta-damage.407828/
Phenolics (Micarta) are formed with wet resin, then a layer of resin soaked fabric or paper (media), then resin, media, resin, media, etc... As the resin cures, it forms a solid block that encapsulates the media. This media is shown when the resin is abraded by sanding, shaping, or media blasting.
Depending on the process to shape/abrade and materials used, the amount of fibers felt will vary, from very little to a noticeable, appreciable especially when wet. Most of the fibers that are exposed from the resin swell when contacted by a liquid, which increases the grip when wet. This is one of the main benefits of Phenolics (micarta).
I use it near exclusively except for when someone specifically asks for otherwise, most notably, stabilized woods. I will not use G10 or Carbon Fiber since I do not have a preferred amount of ventilation and dust collection.
All of this being said, if you need a wet user knife handle, canvas micarta left at 300-400 grit or media blasted will yield a surprising amount of grip when wet, more so than when dry.
The handle should also be able to withstand bleach, and other harsh chemicals, as long as it is of quality. Though bear in mind that some of the surface fibers can bleach out. The stuff within the resin should not bleed at all, in nor out. You do not need to use bleach, anything used to clean your dishes should be fine. They handle raw meats, and the slabs will too.