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High Performance Gypsum Silicone Waterproofing Agent - Weather Resistant
US$1.60
1,000 kg
Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Appearance

Liquid

Application

Rest Room, Roofing, Tunnel and Roof, Waterproofing and Hydrophobic Modification of Gyps

Model NO.

LWS-940

Application Method

Mix with The Concrete

Drying Time

No Influence

Environmental Impact

Biodegradable, Eco-Friendly, Non-Toxic

Type

Silicone Waterproofing

Look

Colourless Transparent Oily Liquid

Viscosity (25℃)/ mm2/S

17.0-25.0

Transport Package

200L Drum / 1000L IBC

Trademark

Sidley

Origin

Linyi

HS Code

3910000000

Key features

High-Efficiency Waterproofing: Polymethylhydrosiloxane base provides excellent hydrophobic, moisture-proof, and mould-proof protection for gypsum.
Breathable Film Technology: Forms a compact waterproof film that retains air permeability, preventing bulging or cracking of gypsum substrates.
Low Dosage & Cost-Effective: High active content requires only 0.20%-0.30% dosage, significantly reducing production costs while ensuring performance.
Eco-Friendly & Non-Toxic: Biodegradable, non-hazardous material safe for storage, transportation, and operation, with no influence on drying time.
Full Compatibility: Fully compatible with all gypsum-based products and Sidleychem admixtures, suitable for interior and exterior applications.
Weather Resistant: Provides durable protection against weather erosion, extending the service life of gypsum boards and bricklaying materials.
Flexible Customization: Supports full customization, minor customization, and customization from samples or designs to meet specific needs.
Professional Manufacturer: Established in 2005 with 21 years of export experience, 2 production lines, and 100% finished product inspection.

Company profile

SIDLEY CHEMICAL CO., LTD.
Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 21 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤10.35h

AI-Powered supplier vetting

SummarySIDLEY CHEMICAL CO., LTD. is a Chinese limited company established in 2005, operating in Shandong and focused on construction chemicals. The supplier reports customization and ODM capabilities, recent new-product development, OEM service for well-known brands, and documented procedures for supplier service capability, corrective and preventive actions, and customer complaints. Production information indicates two production lines and substantial stated capacities across cellulose products, redispersible polymer powder, and calcium formate, although the reported capacity figures differ between slices. Overseas service support includes agents or branches and participation in the Eurocoat Exhibition, but no overseas warehouse or showroom is reported. Financial records are identified for 2023–2025, but no usable financial performance details are provided. A BV audit is listed with validity from April 20, 2026 to April 19, 2027 and an evaluation result of 0; the meaning of this result is not explained.
Supplier typeThe supplier is identified as a combined company and a limited company, with its headquarters and operations in Linyi, Shandong, China. It is not identified as an offshore company.
After-Sales capabilityThe supplier reports written procedures and records for service capability assessment, corrective and preventive actions, and effective customer-complaint handling. It also supports overseas services through agents or branches and offers service coverage in Pakistan, but it has no overseas warehouse or showroom.
R&D capabilityThe supplier states that it developed new products during the past year and provides ODM services, while reporting four R&D engineers. It does not have an available SDK, but the available evidence supports product-development capability.
Production capacityThe supplier operates two production lines and reports product capacities including 10,000 tons each for RDP, HEC, and sodium carboxymethyl cellulose, 30,000 tons for calcium formate, and 20,000 tons for HPMC. A separate company description reports different annual capacities for several products, so production capability is evidenced but the figures are not fully consistent.
Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM service availability, demonstrating broad stated customization coverage.

Product Q&A

Q:What is the recommended dosage for Sidleychem LWS-940?
A:
The recommended dosage is 0.20%-0.30% of the cementitious material, ensuring high efficiency with low usage.
Q:Is this waterproof agent safe and eco-friendly?
A:
Yes, it is a non-hazardous, biodegradable, and non-toxic material that is safe for storage, transportation, and operation.
Q:What types of gypsum products can this agent be used for?
A:
It is specially designed for gypsum board production (interior/exterior, moisture-proof) and gypsum bricklaying construction.
Q:How long is the storage period for this product?
A:
The storage period is 1 year when kept in original packaging under dry conditions.
Q:Does the waterproof film affect the breathability of gypsum?
A:
No, the film retains excellent air permeability, preventing internal water vapor accumulation that causes bulging or cracking.

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