1. Product Introduction
This technology is based on nano-molecular silane materials and provides three-dimensional protection for concrete structures through a complete immersion method. Silane molecules penetrate into the pores of concrete and form a permanent protective layer via chemical bonding. It can effectively prevent water and water-borne harmful substances from eroding concrete, and effectively improve the concrete's freeze-thaw resistance and chloride ion resistance.

2.Technical Features
-Excellent permeability, can penetrate deep into the concrete material, protect the internal structure of the substrate from water damage.
Ideal anti-chlorine ion penetration ability, can effectively reduce chlorine ion penetration by more than 90%.
-Generates stable reticulated silicone resin structure through chemical reaction with inorganic silicate-based substrates, -Life span is the same as that of the concrete being protected.
-Excellent water resistance and alkali resistance, water absorption ratio <7.5%; soaked in 0.1M NaOH solution for 24h, water absorption ratio <10%.
It does not change the appearance of concrete structure, especially suitable for surface protection of fair-faced concrete.
-It can also be used for the protection of brick, stone, rammed earth and other buildings.
-Simple construction method, can be repeated painting.

3. Performance Indicators

Item	Index
Main Component	Isobutyl Triethoxysilane Liquid
Active Component Content, %	≥98.9
Stability	No delamination, no oil floating
Density (25°C), g/cm³	0.90±0.2
Penetration Depth, mm	≥3
Water Absorption Ratio, %	≤7.5
Chloride Ion Penetration Depth, mm	≤7
UV Aging Resistance, %	Water absorption ratio ≤10 after 1000h UV aging
Alkali Resistance, %	Water absorption ratio ≤10 after alkali treatment
Recommended Dosage, g/m²	400
Storage and Shelf Life	Stored in original packaging barrels at 5~45°C, shelf life 12 months

4.Construction Process

-Material preparation
Silane impregnated concrete protection material: original tank sealed and within the expiry date.
Silane:

Impregnated liquid: can be constructed by brushing, spraying, and semi-mechanical spraying tools are recommended.
Paste: can be rolled, brushed, sprayed construction, it is recommended to use airless spraying equipment.

-Concrete surface pretreatment (before silane impregnation)
Remove surface debris and unsound attachments, repair obvious defects such as honeycomb and exposed stones with repair mortar; carbonised concrete needs to be chiseled out of the carbonised part and then repaired with repair mortar.
Remove dust, oil and other harmful substances and pollutants that are not conducive to silane impregnation.
It is better to spray silane on the surface of dry concrete; when working in the water level change area, spraying should be done when there is no water on the surface of the concrete and there is a drying period of 3-6 hours, and it is not allowed to spray when it rains.
Do not apply silane protection materials until the concrete has had a full curing period.
The surface temperature of concrete should be 5-45℃.

-Construction site requirements
should be free of open flame, the operator should use the necessary safety protection facilities.

-Spraying method and dosage
It should be implemented by continuous spraying, and generally it needs to be sprayed twice to meet the spraying amount required by the design documents; in general, 400g/㎡ can guarantee the effect.
-Precautions
Silane will be fully absorbed by the concrete in about 4 hours after the construction, and the concrete impregnated with siloxane before this time should avoid contacting with water; it takes two weeks for siloxane to fully react with the concrete to form a silicone resin network, and the test effect experiment should be carried out two weeks or more after the construction.

5. Performance Indicators

Item Index
Main Component Isobutyl Triethoxysilane Liquid
Active Component Content, % ≥98.9
Stability No delamination, no oil floating
Density (25°C), g/cm³ 0.90±0.2
Penetration Depth, mm ≥3
Water Absorption Ratio, % ≤7.5
Chloride Ion Penetration Depth, mm ≤7
UV Aging Resistance, % Water absorption ratio ≤10 after 1000h UV aging
Alkali Resistance, % Water absorption ratio ≤10 after alkali treatment
Recommended Dosage, g/m² 400
Storage and Shelf Life Stored in original packaging barrels at 5~45°C, shelf life 12 months

6.Application Scenarios
Protection of High Performance Concrete Elements for Harbour Terminals
Protection of Marine Concrete for Cross-Sea Bridges
Protection of Marine Concrete Structures
Protection of Concrete Structures for Elevated Bridges
Protection of Concrete Structures for Highway Bridges
Protection of High Performance Concrete Structures for Coastal Railway Bridges
Protection of Concrete Structures for Tunnels, Airports Runways
Protection of Concrete Structures for Other Buildings
Protection of Concrete Structures for Wastewater Treatment Plants
Protection of Concrete Structures for Thermal Power and Nuclear Power Plants
Concrete structure protection of clean water

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