Concrete, redefined

Proven by engineering, not slogans.

Sileto is a high-performance polymer concrete developed for real-world infrastructure applications – delivering superior durability, faster curing and long-term value.

Talk to our technical team

Concrete shapes the world we live in, and the demands on our infrastructure continue to grow.

Sileto was created to meet that challenge by engineering smarter concrete solutions, validated by science and tested in real-world applications. Our innovation is grounded in solid technology, designed to perform, scale, and endure.

Performance and responsibility guide every decision at Sileto. By reducing complexity and using fewer resources, we deliver higher performance where it matters most — redefining how concrete can support a more sustainable future.

Built through research. Validated by testing. Designed for adoption.

Sileto bridges the gap between advanced materials research and practical implementation, combining scientific rigor with the realities of construction and infrastructure.

Why choose
Sileto

Better performance

High mechanical strength, chemical resistance and durability in aggressive environments.

Cleaner production

No water in the production process and extended life cycle, reducing environmental impact over time.

Cost-effective adoption

Competitive total cost of ownership, faster curing times and compatibility with existing processes.

Why choose
Sileto

Better performance

High mechanical strength, chemical resistance and durability in aggressive environments.

Cleaner production

No water in the production process and extended life cycle, reducing environmental impact over time.

Cost-effective adoption

Competitive total cost of ownership, faster curing times and compatibility with existing processes.

“Sileto delivers a high-performance material with lower cost and lower inputs. Efficient, clean, and fast. Anything that can be made with traditional concrete can be made with Sileto.”

The people behind Sileto’s technology.

Our leadership team brings together deep technical experience and a clear understanding of real-world challenges. They guide the company with a focus on what works in practice, ensuring every decision is grounded, tested, and built to perform.

Maria Lucia Serapião

CEO, board member and co-founder, Sileto Technologies – Chemical Engineer with an MBA in Finance, bringing over 25 years ofexpertise in financial markets- Citi, UBS and BTG Pactual. Experienced entrepreneur and active investor since 2015.

Sergio Van Klaveren

COO, Sileto Technologies – Seasoned administrator and entrepreneur with over 45 years of experience in industrial companies, having held C-level executive positions for the past 25 years, in companies like Occidental Chemical and British American Tobacco.

Dr. Arindom Saha

Chief Technology Officer at Sileto Technologies LLC, with over 20 years of experience spanning scientific research, technology development, and business strategy. He earned his Ph.D. in Inorganic Chemistry from the University of Iowa and conducted postdoctoral research at Stanford University and Penn State University. His work has focused on clean energy and environmental technologies, including hydrogen production, biofuels, CO₂ capture, mercury remediation, and electrocatalytic CO₂ reduction. He combines scientific innovation with practical expertise to advance sustainable technologies from research to real-world applications.

Fabio Ramalho

CFO, Sileto Technologies – B.Sc in Economics, Postgraduate Degree in Conjunction Analysis with an MBA (UNC Kenan-Flagler BS) in Corporate Finance. Fabio has more than 25 Years in the financial Markets both as bank executive (Citi, UBS) and as Director/CFO of private companies. He also has successful experiences in leading raising rounds.

Designed for real-world applications.

Sileto can replace conventional concrete in a wide range of use cases, including:

> Infrastructure repair and overlays

> Architectural and façade elements

> Rail and transportation components

Each application is developed with rigorous testing and technical validation to ensure safety, reliability and long-term performance.

Designed for real-world applications.

Sileto can replace conventional concrete in a wide range of use cases, including:

> Infrastructure repair and overlays

> Architectural and façade elements

> Rail and transportation components

Each application is developed with rigorous testing and technical validation to ensure safety, reliability and long-term performance.

Let’s talk engineering.

Whether you are evaluating new materials, researching advanced concrete technologies or exploring pilot applications, our team is ready to start a technical conversation.