The documented job is “How to Paint an Existing Textured Wall (Orange Peel or Knockdown)”.
✕DO NOT FORCE THE FIT
Smooth and lightly-textured walls — on smooth or orange-peel surfaces the 5/8" over-textures and can flood; drop to 3/8" (47302) for smooth walls or 1/2" (47300) for light texture.
Doors and cabinets — far too much nap and film for finish work; that's the 1/4" (47309).
Masonry, brick faces, coarse stucco, cinder block — the E-volution family record is explicit that aggressive rough surfaces "snag, fray, and quickly tear up the delicate microfiber filaments"; genuinely abrasive masonry is polyester's job (Lamb Pro 47365/47366), never microfiber, even though those surfaces want a long nap.
The 5/8" is where you begin to feel that boundary — it is the medium-texture tool, not a rough-masonry tool.
Epoxy floors — lint-free-plus-chemistry is the woven family's job (Woven-Ultra).
Medium texture tempts you to press to "get into it" — don't; pressing floods the peaks and flings spatter as the longer fibers whip off. A correctly-napped cover works at hand weight, and 5/8" is the correct nap for medium texture, so let it do the reaching. Budget more paint than a smooth or lightly-textured wall of the same size — deeper valleys have more area. De-lint before the first load (tape-and-rip or wash-and-spin). Pre-dampen for waterborne paint. Inspect in raking light before leaving any textured surface. On textured ceilings, minimize passes to avoid pulling the texture loose. Cleaning takes longer with any microfiber — rinse until clear, spin, stand on end; it reuses well. Methods are owned by the paint a textured wall and paint a ceiling application guides.
Asked at the counter
BUYER QUESTIONS ANSWERED BEFORE THE CART, NOT AFTER THE RETURN
What's the 5/8" nap for?
Medium texture — medium knockdown, textured ceilings, older plaster with tooth, medium rough-sawn siding — §2.
5/8" or 1/2"?
Palm the wall: light orange peel → 1/2" (47300); deeper knockdown or real plaster tooth → 5/8" — §5.
Can I roll a popcorn ceiling with it?
It's the reach nap for textured ceilings — roll gently and minimize passes so you don't pull the texture loose; heavy/fragile popcorn is often sprayed instead — §2b.
Masonry or brick?
No — microfiber tears on abrasive surfaces; use polyester (Lamb Pro) for masonry even though it wants a long nap — §4.
Why is this page shorter on official detail?
This cover's own record carries its identity and dimensions but not the family application paragraph; the microfiber behavior here is the documented E-volution family behavior at this nap — record note above.