Floetrol Latex Paint Additive improves the performance of latex paint and keeps projects flowing smoothly. It gives latex paint the feel of oil paint, without the cleanup hassles. Floetrol is a latex paint conditioner, not a thinner.
I HATE brush-stroke marks. For painting furniture or cabinets-- add floetrol by sherwin williams to your paint when painting furniture or cabinets and it will take away all of those brush stroke marks and leave the paint smooth.