process and method
Screen and Recoat — The Traditional Way to Refresh Poly Floors
Light mechanical abrasion plus a fresh polyurethane topcoat — the pre-dust-free method that chemical abrasion replaces.
Published
What the process involves
- Move furniture and clean the floor thoroughly.
- Perform an adhesion test in a hidden area — drop a few drops of mineral spirits and rub. If white marks appear on a cotton swab, there’s wax and you must stop.
- Run a floor buffer fitted with a 120–150 grit abrasive screen over the entire surface to scuff the existing finish.
- Hand-sand the edges where the buffer can’t reach.
- Vacuum thoroughly, then tack-cloth the floor.
- Roll on one coat of polyurethane.
- Let dry overnight; walk on in socks after 4 hours.
Why the industry is moving past it
Screen-and-recoat has been the standard since the 1970s, but it has three problems that chemical abrasion solves:
- Dust. Even with HEPA dust containment, the cured poly being screened produces fine particles that settle on surfaces for days.
- Missed spots. Buffers can’t get into corners or along baseboards without hand work, creating adhesion weak spots.
- Compatibility. If the floor has been cleaned with anything wrong — wax, oil soap, silicone — the new coat peels. Chemical abrasion more reliably handles light contamination.
When it still makes sense
Screen-and-recoat is perfectly good on:
- Recently installed site-finished floors (1–5 years old) with clean maintenance history.
- Commercial floors with heavy traffic that need regular refreshing on a schedule.
- Projects where a contractor already has buffers and isn’t equipped for chemical abrasion.
Cost
Screen-and-recoat typically runs $1–$2.50 per square foot nationally, slightly cheaper than chemical abrasion in most markets because the labor is faster but the finish quality and durability are identical once the topcoat is on.
Frequently Asked Questions
Is screen-and-recoat the same as buff-and-coat?
Yes — they’re interchangeable terms for the same process. ‘Screen’ refers to the abrasive mesh disk used on the buffer, and ‘buff’ refers to the buffer machine that drives it. Both deliver the same result: a lightly-scuffed existing finish ready for a new topcoat.
Is screen-and-recoat dust-free?
No. Although far less dust than a full sand-and-refinish, the abrasive screen still produces fine airborne particles from the cured polyurethane. Dustless sanding equipment reduces visible dust but does not eliminate airborne particles. The only truly zero-dust method is chemical abrasion.
Can I screen-and-recoat a waxed floor?
No. If there’s any wax, silicone, Pledge, or Mop-&-Glo residue on the floor, the new topcoat will not bond and will peel off in sheets within weeks. A solvent wax-removal process must be performed first, confirmed with an adhesion test, before recoating.