What certifications does the product have?

The product holds ISO 9001 and REACH certifications.

What are the main applications for this additive?

It is suitable for grout, joint filler, waterproof mortar, decorative mortar, and external wall insulation systems.

What payment terms do you accept?

We accept LC and T/T payment terms.

Silicone Hydrophobic Powder Ws-90 Building Additive Joint Compound Water Repellent

Name: Silicone Hydrophobic Powder Ws-90 Building Additive Joint Compound Water Repellent
Brand: SIDLEY CHEMICAL CO., LTD.
SKU: 2308192375

Shandong, ChinaSIDLEY CHEMICAL CO., LTD.

US$2.00

1,000 kg

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Appearance

Powder

Application

Concrete Floor, Rest Room

Model NO.

Silicone hydrophobic powder

Application Method

Dip

Drying Time

24 hours

Environmental Impact

Biodegradable, Eco-Friendly, Non-Toxic

Type

Crystalline Waterproofing

pH Value (10% Aqueous Solution)

5.5~8.5

Bulk Density

200-400g/L

80 Mesh Pass Rate

≥99.0%

Odor

Non

Moisture Content

≤6%

Transport Package

Nylon

Specification

25kg/bag

Trademark

sidley

Origin

China

HS Code

3910000000

Production Capacity

5000ton/Year

Key features

Effective Water Repellency: Creates a hydrophobic barrier reducing capillary water absorption and preventing water penetration.

Enhanced Durability: Prevents cracking, efflorescence, and damage from salt corrosion and freeze-thaw cycles.

Eco-Friendly Formula: Biodegradable, non-toxic, and safe for use in various construction applications.

Easy to Mix: Fine powder format that integrates easily with dry mortar components without affecting strength.

Low Dosage Requirement: Requires only 0.1%-0.5% addition to provide lifelong hydrophobic protection.

OEM and ODM Services: Offers full customization, minor customization, and flexible customization options.

ISO 9001 Certified: Manufactured under strict quality control with REACH certification and 20 years of experience.

Free Sample Availability: Provides free samples under 200g for product testing and evaluation.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

SIDLEY CHEMICAL CO., LTD.

Shandong, China

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: ≤5.76h

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.