Wayne Demann asked 7 years ago Our home is 2 years old. The problem I am having is with the red wood railing around the deck. Most of the sapping has stopped but the paint is still chipping. I am using Sherwin Williams quick seal 350 hs alkyd stain blocker primer which is supposed to block knots/sap. Top coat is Behr exterior flat prem/plus 100% latex. For the 3rd time I primed and painted this railing. It almost seems like I’m getting new sap bleeds thru the paint. I live in N. California and are located about 300 yards from the American river which gives us damp am mornings. Any suggestion?
Crowder Painting answered. Spot prime the problem, sappy, areas with a shellac primer. Apply 2 coats with about 30 minutes between each coat. This should seal up those areas.
For a better seal from the moisture use a satin or semi-gloss. This will hold up better than a flat.
