Cedar porch railing: Should I scuff with sandpaper before priming?
The porch on the side of my house is new and has cedar for two 4x4's, Two 2x4's, and a bunch of balusters.
The planing of the 4x4's in particular seem a little smooth. I was thinking of doing a with-grain scuffing with 60 grit to allow the primer to have more to bite to.
But there are so many small parts to this one rail that I would never be able to scuff everything uniformly. If I DO rough up the wood, will the scuffed parts show up after priming and painting (white)?
When milling wood, the saws make a glaze out of the sap in the wood called Mill glaze. It kind of seals the wood making coatings have a hard time grabbing.
Sanding is one good way to break this up, but 60 grit is a bit rough. I'd use 80 or 100. Weathering for a season also helps , and there are cleaners that will help to remove mill glaze that would be easier on the smaller stuff.
Haven't done it in a while, maybe someone will chime in with some products .