Process and Performance Additives to Improve Energy and Resource Efficiency in the Dry Mortar Industry
Modern construction demands more than strength — it demands intelligence. Evonik's SITREN®, SITREN AirVoid® and PROTECTOSIL® additives are engineered to support workability, water repellency, shrinkage control and corrosion protection in cement- and gypsum-based dry mortar systems. Selected grades — including SITREN® P 750, SITREN® SRA P 270 and SITREN AirVoid® 601 — also support lower-VOC and lower-emission formulation targets.
Why Choose Evonik for Dry Mortar Mixes?
- Energy and Resource Efficiency: Reduce water demand and optimize workability with SITREN® process additives; selected grades also support lower-VOC and lower-emission targets.
- Durability and Protection: PROTECTOSIL® corrosion-protection grades and SITREN® water repellents can extend the service life of selected cementitious and gypsum-based structures through reduced water uptake and steel passivation.
- Environmental Performance: Selected SITREN® grades (e.g. P 750, SRA P 270) have very low VOC content, and SITREN AirVoid® 601 supports reduced cement usage and associated emissions through alternative binder formulations.
- Tailored Performance: Solutions for every mortar type—from tile adhesives to repair mortars and waterproofing systems.
Solutions by Application
Drymix Mortars
Evonik’s SITREN® product line offers process and performance additives that support workability, water-demand reduction, and durability targets in tile adhesives, self-leveling compounds and repair mortars, depending on formulation and validation.
- SITREN AirVoid® – Air entrainers and defoamers for controlled porosity and freeze-thaw resistance; selected grades (e.g. SITREN AirVoid® 601) also reduce cement usage and associated greenhouse-gas emissions through alternative binder formulations.
- SITREN® – Shrinkage reducer (e.g. SITREN® SRA P 270) with very low VOC content supporting stringent indoor-emission requirements; hydrophobing agents (e.g. SITREN® P 750) reduce water absorption, helping lower maintenance and extend the service life of treated surfaces.
- SURFYNOL® – Wetting and dispersing agents for optimized mixing and processing procedures and improved adhesion properties.
Corrosion Protection and Moisture Control
Reinforced concrete structures are vulnerable to moisture and chloride ingress, which can lead to steel corrosion and structural degradation. Evonik’s PROTECTOSIL® silane-based additives offer long-lasting protection by forming a water-repellent barrier and passivating steel surfaces—directly within the dry mortar mix.
PROTECTOSIL® – Silane-based anti-corrosion agents, such as PROTECTOSIL® DRY CIT, that support corrosion protection and reduced water uptake in selected cementitious building materials and concrete repair mortars.
Your Evonik Advantage
- Proven Performance: Trusted by leading drymix manufacturers worldwide.
- Low-VOC & Durability Benefits: SITREN® P 750 and SRA P 270 have very low VOC content; SITREN AirVoid® 601 reduces cement usage and associated GHG emissions via alternative binders. PROTECTOSIL® grades extend service life in reinforced concrete by reducing water and chloride ingress.
- Expert Support: Our specialists help you optimize formulations for your specific needs.
Ready to Reinvent Your Drymix Formulations?
Discover how Evonik’s SITREN®, SITREN AirVoid® and PROTECTOSIL® additives can support workability, durability and lower-VOC formulation targets for your dry mortar systems.
Explore our solutions or contact our experts to start your journey toward high-performance construction.