I have an external timber balustrade rail on my balcony that seems to have been neglected for many years, then repainted priot to me purchasing. The result is the paint is cracking, flaking and the timber exposed and cracking.
I have sanded down around half the length, down to the timber and then painted it with a white timber primer (thinned with water, for first coat). All seemed fine, but after a day a few large raised bubbles appeared. There are not many of these, but they are large (average around 15mm diameter and about 5mm high).
I am not hesitant to paint the primed wood with this kind of bubbling and am not sure what could be causing this.
https://sites.google.com/site/nigglythings/photo.JPG
Anyone have a good explanation for this and a suggestion on how to deal with this?
Thanks,
Avron