I suggest thinning it with 1 part thinner to 10 parts water and scrubbing on the stain only after testing a small inconspicuous area.
Cleaning painted vinyl siding.
Also latex paint is best preferably one that has a large solid content.
Cleaning twice a year is good once in the spring and then again in the fall.
Start by mixing in a little household laundry detergent with some water and use a medium firm bristled brush to scrub off the paint.
If you want to paint vinyl siding it should be sanded first for the paint to adhere properly.
Some good vinyl sider cleaner solutions include.
If some wet paint accidentally splashed onto the surface of your vinyl siding don t panic.
It is always best to test a cleaning solution on a small hidden area first to look for any adverse effects.
If that doesn t work get your hands on some goof off or goo gone.
When cleaning vinyl siding remember to thoroughly rinse away any residue as you go.
Several brands of exterior paint are now available that are designed for use on vinyl siding.
Use a pressure washer with laundry detergent to get the surface sparkling clean.
Paint thinner or acetone is said to remove paint stains but may also dull dull the finish on your siding.
Check with your local paint shop or hardware store for the lowdown.
Start at the bottom to avoid streaking and use your garden hose to rinse off each section before it dries.