is this mildew ? I need a good cleaner for seats

[fishing fireman]

[Jaebone]

Mr clean magic erasers have worked for me with different types of cleaners , awesome spray works pretty good 

[Bozeman Bob]

Spray 9 for everything boat related . 

[fishbear]

I always use Chlorox Clean-Up for something like that. It has bleach in it which will destroy mildew.

[Bozeman Bob]

Bleach also destroys the threading in the fabric seams ,be careful with chlorox .

[spoonfed-1]

 

1 hour ago, fishbear said:

I always use Chlorox Clean-Up for something like that. It has bleach in it which will destroy mildew.

 

X2 for 15 yrs on my Penn Yan upholstery.

 

41 minutes ago, Bozeman Bob said:

Bleach also destroys the threading in the fabric seams ,be careful with chlorox .

 

X2 unless you use it intelligently. The cleaner is not straight bleach but you don't want to soak the stitching with it. I always sprayed it on the rag with a light spray directly on bad spots.