Removing hardened latex paint from brushes - what's effective? - Recondition old latex paint Like 89.79% | 896 votes Views: 677 771 Download Place the open. Add a 1/2-oz. to 1 oz. Categories: Old lady Comments: Add Comment Cancel By Tubei - 02:35 Continue to add more. By Shashakar - 06:52 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,. By Tejind - 12:10 Nikolaisabev.info › › Home Repair & Maintenance › Painting. By Nikoktilar - 07:32 The resulting paint won't be the same quality as the original paint, but it will work well for touch-ups or for covering if you apply several coats. Dried latex paints.