Smooth and light-texture walls. Anything from level-4/5 drywall up through a light orange-peel is over-served by a 3/4″ nap — heavy stipple, spatter, fat edges. That is the 3/8″ (99302) and 1/2″ (99303) territory; drop down.
Finish-critical smooth surfaces. Doors, cabinets, feature walls, and sheen work want the shortest naps and the finest fibers — the opposite end of the ladder from this cover.
True coarse masonry at maximum depth. Coarse stucco, unfilled CMU, and parged fieldstone that want the deepest nap in the catalog (the 1-1/4″ rough-masonry hero, another sub-set) will leave pinholes at the crater bottoms under a 3/4″. The 99304 is semi-rough; the genuinely coarse masonry rung is deeper.
Epoxy floors. Lint-free woven only — a shed fiber is permanent floor texture. Not this cover, at any nap.
The long nap coats deep valleys by flexing into them under a light hand; leaning on it mats the pile, floods the peaks, and throws spatter. Budget the paint. Rough, thirsty surfaces take far more paint per square foot than drywall — load full, reload often, and don't stretch a load. Spatter is at its worst here. The longest naps fling the most spatter, and an economy cover more than a woven one; mask floors and adjacent surfaces, and slow the heavy first strokes after each reload. Prime thirsty substrates first — raw masonry and bare rough wood pull paint unevenly, and a masonry/exterior primer evens the porosity so the finish coat lays uniform. Sacrifice, don't baby. On abrasive masonry, plan to discard the cover — this grade is priced for it, and washing a cover the brick has already chewed is false economy. Overnight break on a non-abrasive job: wrap airtight.
Asked at the counter
BUYER QUESTIONS ANSWERED BEFORE THE CART, NOT AFTER THE RETURN
Brick, block, or heavy-textured wall — is this the one?
For semi-rough masonry and heavy texture, yes: 3/4″ is the semi-rough nap, and the economy fiber class actually survives masonry abrasion better than a microfiber would (§1, §2b). For the coarsest stucco/CMU, the deeper 1-1/4″ rung (another sub-set) is the hero.
Why not a nicer microfiber cover on my brick?
Microfiber's fine filaments snag and tear on masonry; the General-Purpose knit-class pile shrugs off the drag. On abrasive surfaces the cheaper cover is the right one (§5).
Can I use it on a normal smooth wall?
No — it lays heavy stipple, spatter, and fat edges on anything smooth. Drop to 3/8″ or 1/2″ (§4).
How much paint will it use?
More than you expect — rough, thirsty surfaces drink paint. Load full, reload often, prime thirsty substrates first (§3).
What is it made of?
The record names the series, not the fiber ; graded here by nap and tier.
