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NSF

NSF SBIR Phase I Completed · U.S. Patent Issued

Strengthening Seawalls.
Securing Coastlines.

Sealor is a patented, nature-based injection treatment designed to stabilize porous ground, reduce water pathways, and help extend seawall life — before full replacement becomes unavoidable.

Sealor injected

Research Partner

Nova Southeastern University

Patent Status

First U.S. Patent Issued

New Patents Pending

technology type

Nature-Based Solidification

serving

South Florida

Water Front Properties

The hidden problem

Is This Happening Behind Your Seawall?

In South Florida and coastal regions, many seawall failures begin underground, long before visible cracks appear. Water moves through porous limestone, erodes backfill, creates underground voids, quietly removing the ground that holds everything in place.

seawall erosion
Common warning signs

⚠ Sinkholes, soft spots, or settling behind the wall

⚠ Soil or sand washing out through cracks or joints

⚠ Water moving under or behind the seawall

⚠ Pavers, patios, or landscaping sinking toward the water

⚠ Repeated patching without solving the root cause

⚠ Concern that costly full seawall replacement may be coming

⚠ Leaning, separating, or settling wall sections

sealor explained

See How Sealor Works in 1 Minute

Understanding the underground problem makes the solution much clearer. Watch before reading the process below.

The Gap Traditional Repairs Leave

Traditional Repairs Treat the Wall.
Sealor Treats the Ground Behind It.

Surface patching, wall repairs or even full replacement may not solve the subsurface problem when water, voids, and porous coastal soils continue to move behind the structure.

"This is not just seawall repair. It is the beginning of a new category of underground climate infrastructure."

Alexander Suma, Inventor of Sealor & Co-founder, Nexuma

The process

Injected like a treatment.
Forms like limestone. Protects like advanced concrete.

Three steps from hidden failure zone to durable biogenic limestone barrier.

01

Diagnose the Failure Zone

Our field partners identify backfill washout, voids, porous zones, groundwater pathways, and soil loss behind or below the seawall through visual inspection and geophysical assessment.

02

Inject the Sealor Treatment

Our specialized partners drill a small hole behind the seawall till below the ocean floor. Our biogenic solution is injected under a low pressure. This is repeated along the length of the seawall with a few feet spacing to avoid any future erosion issues and extend the seawalls lifetime with decades.

03

Form a Biogenic Limestone Barrier

Sealor solidifies and bonds the injected backfill, underground and seawall panel within days. Monitoring equipment can be installed in the drilling hole for predictive maintenance.

The seawall is now structurally extended and strengthened from behind minimizing any future erosion risk and created a structural system with comparable properties of high strength concrete.

Two scientists in lab coats examining a sample

The Sealor breakthrough

We turn vulnerable ground into protective biogenic limestone

Sealor uses controlled biogenic mineralization to form natural limestone material inside porous and eroded ground. Instead of tearing out the wall or applying short-lived patches, Sealor is injected into the vulnerable subsurface zone.

It fills all pore spaces, binds loose material, and creates a durable, sustainable, high strength, impermeable mineral barrier where water once flowed freely.

"This is not just seawall repair. It is the beginning of a new category of underground climate infrastructure."

Who we serve

Built for the waterfront owners and professionals facing seawall failure now

Homeowners

Protect waterfront property, patios, yards, foundations and real estate value from recurring soil loss, esthetics, comfort and emergency repairs.

Condos & HOAs

Reduce disruption, avoid unnecessary replacement, and manage seawall maintenance proactively, instead of investing in costly seawall rehabs every few years.

Marinas

Reinforce waterfront assets in a safe, sustainable and durable way while minimizing downtime and operational disruption.

Municipalities

Explore a scalable, nature-based, carbon-negative rehabilitation and flood management pathway for public seawalls, canals, and waterfront infrastructure.

Engineers & Contractors

Contact us for info and potential partnerships to work with a groundbreaking, innovative injection-based solution serving your clients needs.

Awards & recognition

Parties who recognized the innovative value of Sealor

NSF
SEIR-OTTR Advanced Medical Research logo
Florida venture forum
Visit King of the Netherlands

Latest News & Updates

Sealor in the Spotlight:
A Royal Moment for Coastal Innovation

At the University of Miami, Rosenstiel School, Sealor's Founder & CEO Dr. Alexander Suma had the honor of presenting our novel technology to King Willem-Alexander of the Netherlands, Miami-Dade Mayor Daniella Levine Cava, Dutch Minister Sjoerdsma of Foreign Affairs, Dutch Ambassador Birgitta Tazelaar, and Drew Bartlett, Executive Director of the South Florida Water Management District.

It was a privilege to explain Sealor's initiation story, how fast we have developed our technology, and why this innovation matters so impactfully for flood-prone regions like South Florida.

Get Started

Is your seawall failing from behind?

If you are dealing with backfill washout, voids, sinkholes, soil loss, patio settlement, or recurring seawall repairs, Sealor may offer a less invasive path to reinforce the ground behind your wall.

Partners

Building Coastal Resilience Together

NSU
Risk & Resilience
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