Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker SILRES BS SMK 2100 Silane/Siloxane

Wacker SILRES BS SMK 2100 is a silane/siloxane-based water-repellent impregnation agent from Wacker’s SILRES BS series, designed for mineral substrates like concrete and masonry. It penetrates deeply, forms hydrophobic networks without surface film, enables vapor permeability, resists alkali, and ensures long-term durability against weathering and efflorescence.
  • wacker silres bs smk 2100 silane siloxane_2cf7fa26
  • wacker silres bs smk 2100 silane siloxane_2cf7fa26

Features Of Wacker SILRES BS SMK 2100 Silane/Siloxane

  1. Hybrid silane-siloxane chemistry enabling both covalent bonding to mineral substrates and hydrophobic network formation.

  2. Water-dilutable formulation for easy integration into aqueous-based systems without organic solvents.

  3. Excellent alkali resistance, maintaining performance in cementitious and high-pH environments.

  4. Low-VOC compliant, supporting sustainable building material certifications and regulatory requirements.

  5. Enhanced durability against water penetration, efflorescence, and freeze-thaw cycling in porous masonry.

Typical Applications Of Wacker SILRES BS SMK 2100 Silane/Siloxane

  1. Concrete and mortar admixtures for surface protection and water repellency.

  2. Additive in exterior insulation finishing systems (EIFS) base and finish coats.

  3. Key ingredient in water-repellent renders and façade coatings for architectural concrete.

  4. Functional component in grouts and repair mortars to improve moisture resistance.

  5. Surface treatment for natural stone, clay bricks, and lightweight aggregate blocks.

Specifications Of Wacker SILRES BS SMK 2100 Silane/Siloxane

Chemical TypeAlkoxysilane-siloxane hybrid
Product FormAqueous dispersion
AppearanceClear to slightly opalescent liquid
pH (1% aqueous solution)4.5 – 5.5
Solids Content20 – 22 wt.%
Density (20 °C)~1.02 g/cm³
Storage Stability≥ 6 months at 5–30 °C in sealed original container
VOC Content< 50 g/L (EU Directive 2004/42/EC, category A-e)


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *