How to
Permanently Waterproof
Tilt-Up Panel Joints
with Polyurethane Grout
Failing and leaking tilt-up construction joints can be sealed to full depth with single component SealBoss 1570 NSF Certified Water Stop Foam and the Oakum-Soakum Method
Tilt-up Construction Joints are Typically Caulked
Over time, caulks often fail, break open, and allow water to flow into the structure. Caulk failure can be evident as shrinkage of the bead of sealant, delamination (caulk no longer sticks to surface), cracking of the bead, powdering or dusting of the surface of the caulking.
How to Create a New Full-Depth Joint Seal
While caulking creates a small 1/4″ to 1/2″ bond surface with the concrete panel, 1570 Polyurethane Leak Sealing Resin soaked SealBoss Seal-Oakum fibre provides a full-depth bond and seal against leaks permanently. The ‘Oakum Soakum Technique’ is a proven methodology for polyurethane chemical grout installation — creating a permanent seal that remains unaffected by wet, dry, and even in constant water submerged environments.
How to Prepare the Joint
Prior to any remedial repair, the existing, failed caulk has to be removed, and the joint needs to be free of any debris. The joint then needs to be wetted for the water activated grout to react, expand, and cure.
How to Install the Flexible Permanent Seal
To create a permanent seal with the Oakum-Soakum Technique, oakum fibres are first soaked in hydro-active 1570 polyurethane resin (catalyzed with SealBoss 15X Accelerator), and then pushed deep into the clean and pre-wetted joints to form a flexible and uniform seal during expansion.
How to Protect and Finish the Seal for Cosmetic Appearance
After the foam has cured, any surplus of the foam/oakum seal is cut back and finished with an even bead of caulk to provide UV resistance and achieve a matching surface appearance to the other caulked joints.
Learn More
Please don’t hesitate to call us at 714-662-4445 with any questions, or request to be contacted here, we look forward to helping you find a solution. On-site support from knowledgeable and experienced technical reps is available upon request.
