SINO-SINA’s Silane Impregnating Agent Series is a range of high-performance, surface-applied, non-film-forming waterproofing systems based on alkylalkoxysilane technology. These siloxane-based treatments penetrate deeply into concrete and masonry, forming a long-lasting hydrophobic barrier within the substrate.
As silane-impregnating agents, they are designed to improve the long-term durability of concrete structures by blocking water, chloride ions, and other aggressive agents—without altering the surface appearance or breathability. Ideal for use in bridges, tunnels, ports, parking decks, and heritage restoration.
Available product variants:
T99: n-Butyltriethoxysilane – high-penetration silane agent
T99A: Isobutyltriethoxysilane – low-VOC, solvent-free version
T80: n-Octyltriethoxysilane – alkylsilane paste for vertical or rough surfaces
T80A: Isooctyltriethoxysilane – green-grade silane paste
Product Introduction
Our products utilize state-of-the-art alkylalkoxysilane and siloxane formulations, ensuring superior deep penetration, long-lasting hydrophobic protection, and excellent chloride resistance for concrete structures.
Unlike conventional coatings, our silane impregnating agents penetrate the concrete pores to protect from within, without forming a surface film. This preserves the substrate’s natural appearance and breathability, preventing blistering and cracking.
Tested to meet JTS/T 209-2020 and JT/T 991-2015 standards, our sealers reduce water absorption and chloride ingress by over 90%, ensuring long-term durability even in harsh environments such as marine, highway, and freeze-thaw conditions.
We offer solvent-free and low-VOC formulations that comply with international environmental regulations like REACH, supporting green building initiatives and sustainable infrastructure projects.
Suitable for a wide array of concrete and masonry surfaces including bridges, tunnels, ports, parking decks, and historic buildings. Our product line includes liquid and paste forms tailored for horizontal, vertical, and sensitive indoor applications.
Our expert team provides detailed application guidance, on-site support, and custom formulation advice to ensure your project’s success from start to finish.
Product Parameters
| Inspection ltem | T99 | T99A | T80 | T80A |
| Silane Type | n-Butyltriethoxysilane | Isobutyltriethoxysilane | n-Octyltriethoxysilane | Isooctyltriethoxysilane |
| Penetration Depth (mm, ordinary concrete) | ≥3 | ≥3 | 3–5 | 3–5 |
| Penetration Depth (mm, high-strength concrete) | ≥2 | ≥2 | 2–3 | 2–3 |
| Silane Content (%) | ≥98 | ≥98 | ≥80 | ≥80 |
| Chloride Ion Content | ≤0.01% | ≤0.01% | ≤100 g/m³ | ≤100 g/m³ |
| Water Absorption Rate | ≤0.01 mm·min⁻¹ᐟ² | ≤0.01 mm·min⁻¹ᐟ² | <7.5% | <7.5% |
| Chloride Resistance Effectiveness | ≥90% | ≥90% | >80% | >80% |
| pH | – | – | 7 ± 1 | 7 ± 1 |
| Alkali Resistance | – | – | Absorption after alkali ≤10% | Same |
| Salt-Freeze Durability | – | – | ≥15× reference concrete | Same |
| Density (25°C) | – | – | 0.9 ± 0.1 g/mL | Same |
Product Usage
1.Deep Capillary Penetration: ≥3 mm for durable internal waterproofing.
2.Hydrophobic Barrier: Reduces chloride ion ingress by ≥90%.
3.Breathable Protection: Allows vapor diffusion, prevents blistering or cracking.
4.UV and Freeze-Thaw Resistant: Maintains performance in harsh climates.
5.Eco-Friendly Options: Low-VOC (≤100 g/m³), solvent-free versions available.
6.Invisible Finish: No film, no color change, ideal for architectural concrete.
7.Wide Application: Suitable for new builds and existing concrete repair.
1.Concrete bridges and piers.
2.Tunnels, highways, retaining walls.
3.Port and marine infrastructure.
4.Historic building preservation.
5.Parking garages and decks.
6.EV charging station platforms.
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Start Enhancing Your Business With a Concrete Solution Today
Our products have undergone rigorous testing at our national testing laboratory (CABR testing center co., ltd). Renowned Fortune Global 500 firms such as China Railway Group Limited, China Communications Construction Company Limited, and Sinohydro are among our esteemed clients.
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