[stadry]

i'm still in the trade & there's no such thing as 3yr period for resealing yet,,, is that phrase part of your contract ? do they guarantee the 3yr schedule ?
what you're probably getting is an acrylic fortified polymer-modified cement w/acrylic top seal,,, check out 1 of the bags - should have a mfg # on it UNLESS the installer mixes & bags it in his shop
when we were down in jan, i saw ONE artisan's work that was, impo, pro work,,, all the rest looked like painter's & handymen - even saw 2 girls painting w/h&c - a product rarely used by decorative conc artisans,,, here's why gender was mentioned - neither could explain to me what/why/how - only that they were doing it again,,, you'd think they, at least, would've had some training, no ? saw 2 guys - they at least had plausible answers
for the best long-term performance, conc pavers are #1 in my book,,, more $, sure BUT they're easily repaired if damaged or sunken
by the way, our own driveway is not coated - its plain conc which i do NOT seal
acid-stains outside ? NOT without a uv-resistant sealer - they'll fade in a heartbeat
10yr guarantee w/o cracking ? even fed/state dot specs only call for 1 - that must include caveats - designed ONLY for automobile traffic which is their 'out' if the moving co's truck causes a crack - sitting loads weigh more ( static ) than moving/rolling ( dynamic )