Master X-Seed 100
Additives for concrete/cement

A set and hardening accelerating reducing admixture for concrete: Master X-Seed 100 promotes concrete hardening at low, ambient and even heat curing temperatures. Unlike traditional acceleration methods and thanks to the unique mode of action - the virtually barrier-free crystal growth of the seeds in between the cement grains - early strength development is accelerated while the final microstructure benefits from equivalent or improved properties.

Master X-Seed 100 is optimized for all kinds of concretes, especially for structural precast elements where high early strength development is a key success factor for the producer. Master X-Seed 100 is a relevant alternative to heat curing methods and the strong promotion of hydration in particular supports the use of binders with lower clinker content.

engineered suspension of crystal seeds containing nanoparticles

"Master X-Seed 100 is an engineered suspension of crystal seeds containing nanoparticles, designed to boost the hydration process of early age cement (6-12 hrs). Based on unique and innovative seeding technology, the growth of the essential Calcium Silicate Hydrate crystals is strongly accelerated."

United Kingdom and Ireland

available online

Nanostructured calcium silicate hydrate seeds accelerate concrete hardening: a combined assessment of benefits and risks

From nanocrystals to concrete components - X-SEED® crystals from BASF make concrete harden faster and reduce carbon emissions

Master X-Seed® – The Hardening Accelerator