Good compromise. One thing that occurred to me is can that solution be done after moving in without moving bolted-down benches, drill presses, lathe, and mill. Maybe super clean the floor around stuff and apply the sealer ???
I don't see why not. I'd try to get up any oil/grease/coolant from the concrete floor as part of preparation. You might want to surface grind the open areas to maximize sealer penetration.
Here's what the product data sheet for the sealer says:
Westcoat SC-65 WB Clear Polyurethane Sealer is a two component, high solids, water-based, clear
polyurethane sealer that is available in Gloss, Semi-Gloss and Flat sheens. SC-65 provides properties
equal to that of traditional urethanes (such as, ease of cleanability, gloss retention and excellent abrasion
resistance) with fewer health and environmental concerns. The UV, mar and chemical resistant nature of
this product allows it to outperform most other types of sealers.
Concrete must be clean, dry and free of grease, paint, oil, curing agents, laitance or any foreign material
that will prevent proper adhesion. Concrete should be prepared to a minimum surface profile of CSP 2,