Invention Reference Number
This technology offers a bio-based, force-activated sealant that is designed for prefabricated components. The sealant does not cure while exposed to ambient conditions for up to eight months. Consequently, the sealant is designed to be installed off-site during manufacturing of prefabricated components because it will not cure during storage and transport of prefabricated components. Instead, the sealant cures on demand after pressure is applied at the job site. The formulation improves airtightness and waterproofing while reducing on-site labor and installation time. Its bio-based composition offers the potential to support more resilient supply chains while also matching the performance of commercial products.
Description
Prefabricated construction can significantly cut waste and onsite construction time, but sealing joints between prefabricated components requires labor-intensive, on-site application of tapes and caulks. This Oak Ridge National Laboratory innovation integrates a sealant that is predominantly sourced from bio-based feedstocks, while prefabricated components are being manufactured. The sealant technology employs a specialized encapsulation approach to keep reactive components separated until the capsules are broken by mechanical force from the prefabricated components, initiating curing of the sealant. The formulation is designed for high adhesion strength to various materials and water resistance. The hydrophobic nature of the sealant helps prevent moisture intrusion, supporting long-term integrity of the prefabricated assembly. This solution reduces reliance on on-site sealing, enabling faster, more reliable installation processes.
Benefits
- Reduces on-site labor and installation time
- Does not cure while exposed to ambient conditions for up to eight months until force is applied
- Derived primarily from bio-based feedstocks
- High adhesion strength and water-resistant sealing
Applications and Industries
- Prefabricated components and assemblies
- Prefabricated building construction
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
