RIS Grademarked Redwood Gate Stain
I am about to apply an alkyd semitransparent stain, probably Sikkens Cetol SRD 089, to my gate which is new from the mill. The Redwood is RIS Grademarked Certified Kiln Dried, Vertical Grain, Saw-Textured, Architecural grade, Heart B. Should I clean and prep the wood as per instructions from stain manufacturer for hardwood/mill glazed wood or should wood of this quality not have mill glaze and not need prep? They recommend a Tri-Sodium Phosphate and bleach cleaning followed by pressure wash.
What is the best way to treat the back, end grain, and joints?
Is there a nail hole filler you recommend?