My fence is mostly horizontal rough wood with one section vertical planed wood and a vertical planed wood gate. It was painted by the previous house owners with a waterbased green stain. After 10 years in the house, It had faded a lot so I’ve repainted it with a Sadolin waterbased green stain. I brushed it down first to remove dust etc. It looked lovely when dried out but when it rained it turned back to wet paint and developed runs. Once it stops raining it dries out again, although the runs dry out darker. Every time it rains, it turns wet again. (see pic 1). Another problem is that in some parts of the planed wood gate, the new paint separates. Two workers from Crown looked at it but couldn’t offer any definite cause. They suggested painting over it with a thicker paint but that would cover the wood grain and has a sheen, which I don’t want. I’m looking for any possible causes and solutions.
Fence Painting Problem