3M™ Polyurethane Construction Sealant 525 is a single-component, moisture-curing, gap-filling elastomeric sealant that creates permanently elastic seals and bonds well to concrete. Skin time in 90-150 minutes.
- Multi-purpose bonding and long lasting seals
- Permanently elastic to allow joint movement
- Creates flexible seals on expansion joints
- Skin time in 90-150 minutes; paintable once skin forms