Stronger Concrete. Smarter Design. Lower Carbon.

Master X-Seed® is a high-performance concrete admixture that transforms how strength develops — and how mix designs are optimized. Powered by suspended calcium silicate hydrate (C-S-H) nanoparticles, it accelerates the natural hydration process between cement grains, enhancing both early and late-age strength.
This nano-seeding technology enables faster formwork turnover, tighter construction schedules, and higher structural performance. But it goes further: by unlocking efficiency in mix design, Master X-Seed allows for significant cement reduction without sacrificing performance. That means lower material costs and a smaller carbon footprint, all while meeting or exceeding your performance specs.
Strength. Intelligence. Sustainability. Built into every pour.
What is Master X-Seed?
Nanotechnology for Next-Generation Concrete Performance

Master X-Seed® is a family of strength-enhancing admixtures that utilizes crystalline calcium silicate hydrate (CSH) nanoparticles to accelerate cement hydration and improve concrete performance — without functioning as a traditional set accelerator.
These ultra-fine particles act as hydration seeds, enabling:
Faster early strength development without increasing cement
Improved late-age strength for structural reliability
More flexibility in mix design, including greater use of SCMs and blended cements
Reduced construction time and cost through earlier form stripping and improved productivity
Whether you're optimizing for performance, sustainability, or both, Master X-Seed® brings confidence to your concrete.
Choose the Right Admixture For Your Application
Master X-Seed 44
Designed for precast concrete producers requiring high strength at early ages.
Master X-Seed 55
Designed for general-purpose concrete producers looking for enhanced productivity and mix design flexibility.
Master X-Seed 66
Ideal for high-performance, sustainable concrete mixtures, especially those using Type IL/GUL or low-cement designs.
What Construction Markets Benefit?
Infrastructure & Civil Projects
Master X-Seed supports aggressive timelines and structural performance in bridges, pavements, and tunnels — even in cold or remote conditions.
Commercial Construction
Master X-Seed shortens vertical cycles, reduces shoring time, and meets sustainability goals for commercial construction.
Ready-Mix & Residential
Master X-Seed improves mix robustness, reduces cement costs, and enhances consistency across jobsites.
Precast
Master X-Seed accelerates form stripping and improves finishability while reducing the need for thermal curing.
Resources
The Reed at Southbank Project Reference
Explore our project reference!
Pier 27 Project Reference
Explore our project reference!
MSG Sphere Project Reference
Explore our project reference!
Redefining Concrete Strength & Sustainability Blog
Explore our blog!
Tariff-Driven Cement Challenges Blog
Explore our blog!
Carbon Reduction Brochure
Explore our brochure!