Guolan New Materials (Shandong) Co., Ltd. is one of the leading manufacturers and suppliers of hydrogen silicone oil waterproofing agent for building in China. With a professional production team, we are able to meet the needs of the majority of our customers. Welcome to wholesale bulk top-quality hydrogen silicone oil waterproofing agent for building from our factory.
Products Description
Building-grade high-hydrogen silicone oil (CAS: 63148-57-2) is a penetrating silicone water repellent designed for concrete, mortar, masonry, and aerated block substrates. With hydrogen content >1.58%, when diluted and applied to a dry substrate, it penetrates into capillary pores; Si-H groups hydrolyze and chemically bond with surface hydroxyl groups to form a durable water-repellent layer. It does not change surface appearance or vapor permeability, and effectively reduces water absorption, efflorescence, freeze-thaw damage, and chloride ion penetration.
Unlike film-forming waterproof coatings, this product penetrates beneath the surface and reacts within the substrate capillary structure. The reaction product is chemically bonded to the mineral surface, so it will not peel, blister, or crack like surface coatings. Vapor permeability is maintained - internal moisture can escape while liquid water cannot enter. When properly applied on exterior concrete surfaces, service life typically exceeds 10 years. Suitable for roofs, exterior walls, basements, bathrooms, tunnels, and historic masonry conservation.
With an annual capacity of 5,000 tons, Guolan New Materials provides reliable long-term supply for building waterproofing projects. We are familiar with construction industry technical specifications and application standards, and provide full technical guidance on dilution ratios, coverage rates, and application methods. We ship from Qingdao, Shanghai, and Tianjin ports, supporting both FCL and LCL shipments to serve the global building materials and waterproofing market.
Technical Specifications
|
Parameter |
Specification |
|
CAS Number |
63148-57-2 |
|
Chemical Name |
Polymethylhydrosiloxane (PMHS), trimethylsilyl terminated |
|
Appearance |
Colorless transparent oily liquid |
|
Hydrogen Content, wt% |
>1.58 |
|
Viscosity (25°C), mm²/s |
28–32 |
|
Volatile Matter (105±2°C, 3h), wt% |
<2 |
|
Acid Value, ppm |
<5 |
|
pH Value |
6–8 |
|
Density (25°C), g/cm³ |
0.990–1.015 |
|
Refractive Index (25°C) |
1.397–1.398 |
|
Water Absorption Reduction |
≥85% (vs. untreated substrate) |
|
Transport Classification |
Non-hazardous (general cargo) |
Key Strengths
- Penetrating Formula - No Change in Appearance - Unlike film-forming waterproof coatings, this product penetrates into the substrate and bonds with capillary pore walls, forming no surface film. It completely preserves the natural color and texture of concrete and masonry.
- Breathable - Blocks Liquid Water Only - Treated substrates remain vapor-permeable, allowing internal moisture to escape while rainwater and liquid water cannot penetrate. This avoids the trapped internal moisture and blistering problems associated with impermeable coatings.
- Long-Lasting Durable Performance - Si-H groups form chemical bonds with substrate surface hydroxyl groups rather than physical adhesion, so the treatment will not peel, delaminate, or crack. On vertical exterior concrete surfaces, service life typically exceeds 10 years.
- Multi-Functional Protection - Effectively reduces substrate water absorption by ≥85%, while also inhibiting efflorescence (white bloom), freeze-thaw damage, and chloride ion penetration. Especially suitable for cold climate regions and coastal salt-exposed concrete structures.
- Easy Application, High Efficiency - After dilution, it can be applied by spray, brush, or roller in two wet-on-wet coats. Coverage of 0.2–0.5 kg/m² (undiluted) enables fast application on large exterior wall and roof projects.
- Strong Bulk Supply Capability - With 5,000 tons annual capacity, we can support large waterproofing projects. Available from 200L iron drum trial orders to 1000L IBC totes and full container loads, with phased delivery aligned to project schedules.
Key Applications
Concrete & Mortar Exterior Walls
Water-repellent treatment for concrete and mortar exterior walls, reducing rainwater absorption and efflorescing staining to keep building facades clean and attractive. Especially suitable for high-rise buildings and fair-faced concrete architecture.
Roof & Basement Waterproofing
Capillary waterproofing for roofs and basement walls/floors, resisting rainwater and groundwater. Used as a complement to other waterproof systems to enhance overall reliability.
Masonry & Brick Wall Damp-Proofing
Damp-proofing and anti-efflorescence treatment for brick walls, blockwork, and cultured stone. Blocks capillary rising damp and rainwater penetration into interior spaces, improving living comfort.
Tunnels & Civil Engineering
Capillary waterproofing for tunnels, culverts, and underground parking structures, as well as conservation treatment for historic masonry buildings. Preserves the appearance of heritage structures while providing durable waterproof protection.
FAQ
Q: Can you supply bulk quantities for large waterproofing projects?
A: Yes. With 5,000 tons of annual production capacity, we support projects ranging from single-building waterproofing to large-scale infrastructure and residential development sites. Supply formats include 200L drums, 1000L IBC totes, and full container loads, with phased delivery scheduling aligned to your construction timeline.
Q: Do you provide technical guidance for on-site application?
A: We provide detailed application guidelines covering dilution ratios (typically 1:5 to 1:10 with clean water), coverage rates (0.2–0.5 kg/m² undiluted equivalent), spray/brush/roller methods, and wet-on-wet coat recommendations. Our technical team can consult on substrate-specific adjustments for concrete, masonry, aerated blocks, or historic stone.
Q: What documentation do you provide for construction project tendering?
A: We provide COA, SDS, TDS, and performance test reports including water absorption reduction data (≥85% vs. untreated substrate). For project bidding, we can supply sample test reports and factory audit documentation to meet contractor and owner qualification requirements.
Q: How is this different from film-forming waterproof coatings?
A: Unlike surface coatings that form a film on top of the substrate, this penetrating silicone water repellent soaks into capillary pores and chemically bonds with mineral surfaces. It will not peel, blister, crack, or delaminate with thermal cycling. The treated surface remains vapor-permeable - internal moisture escapes while liquid water is blocked - and the original color and texture of concrete or masonry are fully preserved.
Q: What is the expected service life on exterior concrete walls?
A: When properly applied on vertical exterior concrete surfaces, the service life typically exceeds 10 years. Because the active Si-H groups form covalent bonds with substrate hydroxyl groups rather than sitting as a physical coating, the treatment is not subject to UV degradation, abrasion, or weathering that destroys surface films.
Q: How much area can one drum cover?
A: Coverage depends on substrate porosity. For typical dense concrete, expect approximately 400–1000 m² per 200L drum (undiluted equivalent at 0.2–0.5 kg/m²). Two wet-on-wet coats are recommended. For highly porous substrates like aerated concrete or old masonry, coverage will be lower - we always recommend a small test patch on your specific substrate first.
Why Choose Guolan New Materials?
- True Penetrating Waterproofing, Not a Surface Film-This building-grade formula penetrates into capillary pores and bonds chemically with the mineral substrate. It will never peel, blister, or crack like acrylic or cementitious coatings, and it completely preserves the natural appearance and texture of concrete, brick, and stone.
- Breathable Protection - Blocks Liquid Water Only-Treated walls remain vapor-permeable: internal moisture can escape through evaporation, but rainwater and groundwater cannot wick in. This solves the trapped-moisture problem common with impermeable membranes, preventing blistering, delamination, and interior dampness.
- Long-Lasting Durability Beyond 10 Years-Covalent Si-O-Si bonds between the treatment and substrate resist UV radiation, freeze-thaw cycles, and salt spray. On vertical exterior concrete, performance typically holds for over a decade with no reapplication needed - far outlasting surface waterproof paints and coatings.
- Multi-Functional Substrate Protection-Reduces water absorption by ≥85% while also inhibiting efflorescence (white salt bloom), chloride ion penetration, and freeze-thaw damage. Especially valuable for coastal structures, cold-region concrete, and historic masonry where salt and weathering are major degradation drivers.
- Engineering-Grade Supply and Project Support-5,000-ton annual capacity supports phased delivery for large construction projects. We provide tender documentation, application guidelines, and substrate-specific technical consultation to help contractors meet waterproofing specification requirements on schedule and within budget.
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