TL;DR
Polyurethane crack injection is a basement waterproofing repair in which liquid urethane resin is pumped into a foundation crack through surface ports, where it reacts with moisture and expands into a flexible foam that seals the full depth of the wall. Because the cured material stays elastomeric, the seal survives the minor seasonal movement that would re-crack rigid epoxy.
What it means
Polyurethane crack injection is a basement waterproofing repair in which liquid urethane resin is pumped into a foundation crack through surface ports, where it reacts with moisture and expands into a flexible foam that seals the full depth of the wall. Because the cured material stays elastomeric, the seal survives the minor seasonal movement that would re-crack rigid epoxy. It stops water but adds no structural strength, so engineers specify epoxy where bonding matters.
Where it sits in the glossary
Polyurethane crack injection is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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