Answer
Jun 01, 2024 - 01:55 AM
No. Safecoat EXT is a topical coating that will not block hydrostatic pressure from below. Use our GBS Penetrating Concrete Sealer instead. Non-toxic, ultra-low VOC (8 g/l), no odor once dry. It penetrates deep into the concrete and permanently seals against moisture intrusion. NOTE: your concrete must be porous, unsealed, not power troweled or polished, clean, dry and neutral pH. Saturate the concrete with 3-4 coats. Most Cork manufacturers require a vapor barrier over any concrete subfloor, even if it is sealed. All that is necessary is 6ml poly sheeting. We offer Moisture Block ($16.95/100SF/roll) for that purpose. You don't need a vinyl liner.
