not one to promote many products but I have tried everything to get the mildew from my white vinyl. without success ..

but this stuff RMR -86 instant mold and mildew remover is the real deal

removed them effortlessly spayed some in the bilge area and anchor locker same results 99% gone 16 bucks for 32 oz not friendly to colored pants ... didn't smell harsh fumes if its bleach its super bleach


https://www.amazon.com/s?k=RMR-86+Instant+Mold+Stain+%26+Mildew+Stain+Remover+-+32+oz+w%2FSprayer&i=hpc&ref=nb_sb_noss

It looks like it containsbleach... Be VERY sure to either keep it off of stiching, or to rinse the *&^% out of it. I had to repace a seat due to the thread decomposing due to bleach exposure.

"There are two primary RMR 86 ingredients – sodium hypochlorite and surfactants. The exact concentrations of each are undisclosed as trade secrets. Since this product contains bleach, users should take special precautions before spraying surfaces. The chemicals in RMR 86 rapid mold remover is toxic."

"Sodium Hypochlorite is a liquid Chlorine and has around 10-12% available Chlorine. Available Chlorine (AC) is the amount of Chlorine released in the water to disinfect. Bleach, which contains Sodium Hypo, only has 5% AC which is why bleach is not a good pool disinfectant"