Farrell Calhoun stocks Wooster Pro/Doo-Z, 3/8" nap (9" and 18")
Buy locally if possible (Farrell Calhoun stocks these) - link to buy online here if you need it.
The fabric's interlocked to keep it from shedding, and it's built for epoxy floor finishes and catalyzed urethanes specifically — not a wall-paint cover you're hoping holds up. Run the 9" for tight work, jump to the 18" to move across open floor. The 3/8" works for everybody. Some pros go faster with a 3/4" or 1" nap version (pull more material out when you dip), and if you are coating something rough, a thicker nap is mission-critical.
The best Roller Frames, Covers, Brushes, and Extending Poles make a big difference. And they might not cost more that the crap you’d buy without any guidance.
Farrell Calhoun stocks all my favorite stuff, but I put links to all the photos in page linked above. Top Picks include:
18 in. Big Ben Roller Frame by Wooster
The Big Ben's green double-thick polypropylene core resists water, solvents, and cracking, and it's a shed-resistant woven setup built for primers, urethanes, and epoxies. CleanPrime carries acetone and toluene, and a cheap frame core can soften or seize when solvent works into it — the solvent-resistant core is the whole point. It's specifically marketed for quick application of epoxy, urethane, and polyaspartic floor coatings, holds 12" to 18" covers, and threads onto an extension pole.
9 in. Sherlock Roller Frame (Wooster)
This rolls straighter, smoother, and the roller never comes off unexpectedly with my experience. Though you may need to press the little metal flanges out occasionally to keep the tension up. Get good tools and take care of them. Use your acetone sprayer and your microfibers after each use to keep it clean and functional. Be more of a craftsman than a consumer here.
Wooster Pro/Doo-Z, 3/8" nap (9" and 18")
The fabric's interlocked to keep it from shedding, and it's built for epoxy floor finishes and catalyzed urethanes specifically — not a wall-paint cover you're hoping holds up. Run the 9" for tight work, jump to the 18" to move across open floor. The 3/8" works for everybody. Some pros go faster with a 3/4" or 1" nap version (pull more material out when you dip), and if you are coating something rough, a thicker nap is mission-critical.
18" roller cover for the topcoat
Wooster's R207 18" is better, but the epoxy glide roller covers are generally easy to find. You can find the same thing in a 9-inch, I'm sure. The big idea is: this sheds material like a performance shirt versus a typical roller cover that will hold material like a cotton sweatshirt. The epoxy glide roller covers are generally easy to find. You can find the same thing in a nine-inch, I'm sure, but the big idea is this sheds material like a performance shirt versus a typical roller cover, which will hold material like a cotton sweatshirt. The other thing, obviously, is you want a roller cover that will not shed into your topcoat, and these are the two best I know of.