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Waterproofing & protection

Silane Impregnating Agent

SINO-SINA’s Silane Impregnating Agent Series: High-performance, surface-applied, non-film-forming waterproofing systems based on alkylalkoxysilane technology. As silane penetrating sealer and water repellent, they penetrate concrete/masonry deeply (≥3mm), forming hydrophobic barrier for lasting protection. High-purity formula with ≥98% silane content ensures effective waterproofing and corrosion resistance.

Review technical parameters
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Product overview

Performance and application overview.

Silane Impregnating Agent (silane penetrating sealer or silane water repellent) delivers long-term durability for reinforced concrete. Penetrates deeply (≥3mm) to form waterproof, breathable invisible layer, suppressing corrosion from seawater, salt mist, deicing salts without altering aesthetics. Compliant with JTS/T 209-2020, JT/T 991-2015. Variants: T99 (octyl trialkoxy silane, ≥98% content); T80 (paste, ≥80% content). Versatile for bridges, tunnels, marine facilities. Ideal for "silane penetrating sealer for concrete" searches.

Why Choose Us

Advanced Silane Technology: Alkylalkoxysilane/siloxane formulas for deep penetration, hydrophobic protection, chloride resistance.

Non-Film-Forming & Breathable: Internal pore protection, no surface film; preserves appearance, breathability, prevents blistering/cracking.

Proven Durability: >90% reduction in water/chloride ingress; suits marine, highway, freeze-thaw.

Eco-Friendly: Solvent-free, low-VOC; REACH-compliant for green projects.

Versatile Range: For bridges, tunnels, ports, decks, historic buildings; liquid/paste for horizontal/vertical/indoor.

Technical parameters

Original product values for technical screening.

Values are reproduced without keyword editing. Final selection must follow the current approved technical data sheet, test method and project conditions.

The source-page headings and values are retained as published. Do not interpret an unlabeled value as a guaranteed minimum.

ParameterT99 Silane lmpregnating PaintT99A lsobutyl Silane lmpregnating PaintT80 Octyl Silane PasteT80A lsooctyl Silane Paste
Main ComponentOctyl Trialkoxy SilaneIsobutyl Triethoxy SilaneOctyl Trialkoxy SilaneIsooctyl Triethoxy Silane
Silane Content (%)≥98≥98≥80≥80
Siloxane Content (%)≤0.3≤0.3--
Chloride Ion Content≤0.01%≤0.01%≤100 g/m³≤100 g/m³
Water Absorption Rate (mm/min¹/²)≤0.01≤0.01--
Penetration Depth (mm)Ordinary concrete ≥3, High-performance ≥2Same as T99≤C45 concrete 3-5, >C45 2-3Same as T80
Chloride Absorption Reduction (%)≥90≥90>80>80
Density (g/ml, 25℃)--0.9±0.10.9±0.1
pH Value--7±17±1
Drying Coefficient (%)-->30>30
Water Absorption Ratio (%)--<7.5<7.5
Alkali Resistance--<10% after treatmentSame as T80
Salt-Freeze Resistance--≥15 more cycles than referenceSame as T80
Odor--No obvious irritating odorSame as T80

Product usage

Application and installation guidance.

For optimal results with this silane impregnating agent (functioning as a silane penetrating sealer or silane water repellent), follow these steps tailored for concrete structures like bridges, dams, and tunnels:

Construction Conditions: Apply after 2-4 weeks curing for new concrete or 1-2 weeks for repairs. Ensure ambient temperature 5-40℃, wind ≤6 level, and no rain or damp surfaces. Confirm concrete moisture ≤8%.

Construction Conditions: Apply after 2-4 weeks curing for new concrete or 1-2 weeks for repairs. Ensure ambient temperature 5-40℃, wind ≤6 level, and no rain or damp surfaces. Confirm concrete moisture ≤8%.

Surface Preparation: Repair defects, clean with wire brush, compressed air, and fresh water to remove dust/oil. Dry for >3 days; ensure no release agents.

Surface Preparation: Repair defects, clean with wire brush, compressed air, and fresh water to remove dust/oil. Dry for >3 days; ensure no release agents.

Testing: Conduct spray trials before large-scale use; core sample to verify ≥3mm penetration and ≤0.01 mm/min¹/² water absorption.

Testing: Conduct spray trials before large-scale use; core sample to verify ≥3mm penetration and ≤0.01 mm/min¹/² water absorption.

Application:

Application:

Liquid (T99/T99A): Spray continuously to saturation (overflow), brush flats to wet, verticals bottom-up with 15-20cm sag. Two coats at 300g/m² each, 4-6h interval.

Liquid (T99/T99A): Spray continuously to saturation (overflow), brush flats to wet, verticals bottom-up with 15-20cm sag. Two coats at 300g/m² each, 4-6h interval.

Paste (T80/T80A): Use airless sprayer for large areas or brush/scraper for small; ensure uniform coverage.

Paste (T80/T80A): Use airless sprayer for large areas or brush/scraper for small; ensure uniform coverage.

Curing & Precautions: Rain-proof for 24h; air dry ≥36h summer/≥72h winter. Stop if rain starts and cover. Surface may darken temporarily but restores without performance loss.

Curing & Precautions: Rain-proof for 24h; air dry ≥36h summer/≥72h winter. Stop if rain starts and cover. Surface may darken temporarily but restores without performance loss.

Safety: Wear PPE (masks, goggles, gloves); rinse contact with water. Non-flammable; store in cool, dry place (shelf life 12 months).

Safety: Wear PPE (masks, goggles, gloves); rinse contact with water. Non-flammable; store in cool, dry place (shelf life 12 months).

Technical enquiry

Check whether Silane Impregnating Agent matches your project.

Include foundation type, grout geometry and volume, strength ages, flow requirement, temperature, standards, placement distance and equipment.