Latex paint dried and thickened, can I still use it for a touch up

paint

I was just about to do some touchup work in a room when I discovered upon opening the can that the remaining paint had thickened into a much thicker consistency. I think the lid may not have been on correctly.

Can I use it as is for touch ups? Or would it be best to apply some kind of thinner? Do I have to go out and buy paint thinner, or is there something else I could use that would spare me the trip to the store?

Its latex paint, about a year old. From Benjamin Moore.

Best Answer

Latex paint can generally be thinned with plain water... but I'd test with a very small quantity and a piece of scrap wood first. If you can't get a good consistency, there are thinners made specifically for latex - SCL-Sterling makes one called Thin-X Latex that I used a while back, with good results.