M-1 Advanced mixes mildew resistance into your paint
Mildew, mold, and algae take hold on paint in damp, shaded spots and keep coming back once they do. M-1 Advanced gets ahead of it by going into the paint before you ever pick up a brush.
Add one container to a gallon of paint or varnish and stir it in. The treated coat resists mildew, mold, and algae as it cures and as it ages. It’s compatible with nearly every water-based paint and finish, and oil-based ones too, so you can use it with what you already planned to put on the wall.
Good for
- Bathrooms, kitchens, and other damp interior rooms
- Shaded exterior siding and trim that stays wet
- Any paint or varnish job where mildew is a recurring problem
Frequently asked questions
How do you use M-1 Advanced?
Add one container to a gallon of paint or varnish and stir it in. The treated coat then resists mildew, mold, and algae as it cures and as it ages, so the protection is built into the coat rather than applied to spots later.
What paints is M-1 Advanced compatible with?
It is compatible with nearly every water-based paint and finish, and oil-based ones too. That means you can use it with whatever you already planned to put on the wall.
Where should you use M-1 Advanced?
Use it in bathrooms, kitchens, and other damp interior rooms, on shaded exterior siding and trim that stays wet, and on any paint or varnish job where mildew is a recurring problem. It gets ahead of mildew, mold, and algae before they take hold.
Want to get it right? These hands-on guides from The Craftsman Blog show you how.
Related tutorials
From The Craftsman Blog
What to Do About Mildew on Paint
Even a great paint job can sprout mildew, and Scott shares his hard-won battle plan against it. From prep to additives to cleanup, it's all here. M-1 is one of the tools in that fight.

