How do you control quality?

We arrange sample confirmation before production, use professional QC staff during manufacturing, and welcome factory visits.

What certifications do you have?

Our products are certified with CE and ISO standards.

Sodium Silicate Intumescent Fire Seal

Name: Sodium Silicate Intumescent Fire Seal
Brand: Hangzhou Biyou Building Materials Technology Co., Ltd.
SKU: 2011299005

Zhejiang, ChinaHangzhou Biyou Building Materials Technology Co., Ltd.

US$0.80

5,000-9,999 Meters

US$0.75

10,000+ Meters

Product profile

Customization

Available

Application

Indoor, Outdoor

Certification

CE, ISO

Model NO.

BY-PCSW2040

Material

Graphite and PVC

Funtion

Soundproof Smoke and Fire Prevention

Color

White, Brown, Black or as Request

MOQ

1000 PCS

Transport Package

125PC/Carton

Specification

20x4.0mm

Trademark

Origin

Zhejiang

HS Code

3925300000

Production Capacity

50000000m

Key features

High Expansion Ratio: Expands up to 5 times initial thickness to seal gaps effectively.

Fire & Smoke Prevention: Blocks flames, smoke, and hot gases when exposed to heat.

Customizable Colors: Available in White, Brown, Black, or as requested.

OEM Service: Customizes products according to customer drawings or samples.

Fast Delivery: Shipment arranged within 7-30 days after deposit receipt.

CE & ISO Certified: Meets international safety and quality standards.

Free Samples: Free samples are available for quality verification.

Professional Manufacturer: Over 20 years experience in fire and acoustic seal products.

Company profile

Hangzhou Biyou Building Materials Technology Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2014-12-05Nearest Port: Shanghai, NingboAverage Response Time: ≤9.66hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DAT, FAS, DDP, DAP, CIP, CPT, Others, FCA

AI-Powered supplier vetting

SummaryHangzhou Biyou Building Materials Technology Co., Ltd. is identified as a China-based manufacturer/factory with production in Jiaxing, Zhejiang, specializing in weather sealing and passive fire protection products. It reports ISO 9001 and ISO 14001 management-system certifications, 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. The supplier states that 90% of sales are exports, has self-operated import/export rights, and began exporting in 2014. Its stated product range covers fire, smoke, acoustic, TPE, silicone, and PVC sealing products. The available trade records show limited transaction evidence, with one transaction associated with each listed buyer record; therefore, customer-case depth and financial credibility cannot be fully assessed. After-sales service and product customization are mentioned or implied only partially and lack sufficient detail for a definitive evaluation.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory, with an international sales office in Hangzhou and a factory in Jiashan, Jiaxing, Zhejiang. Its stated business focuses on manufacturing weather-sealing and passive-fire products, supported by 10 production lines.

CertificationsThe supplier reports holding ISO 9001 and ISO 14001 management-system certifications. These certifications provide explicit evidence of formal quality and environmental management systems, although the slices do not provide certificate numbers, issuing bodies, or validity dates.

After-Sales capabilityThe company states that it provides efficient after-sales service and has professional R&D resources and high-quality products. However, no specific service scope, response process, support locations, warranty terms, or service-performance evidence is provided.

R&D capabilityThe supplier states that it has a professional R&D group, and the reported total experience of its R&D engineers is 6–10 years. This supports the existence of an experienced R&D function, but the slices do not document patents, new-product launches, proprietary technologies, or measurable innovation outcomes.

Production capacityThe supplier identifies itself as a manufacturer and reports 10 production lines, 6–10 quality-control staff, and a factory location in Jiaxing, Zhejiang. These facts provide explicit evidence of established production infrastructure and quality-control staffing.

Product Q&A

Q:Are you a manufacturer or trading company?

We are an international trading company and a professional manufacturer of door and window seals, fire and acoustic seal products with over 20 years of experience.

Q:What are the payment methods?

For samples, we accept T/T and Western Union. For orders, we prefer T/T with 30% advance payment and 70% before delivery. Other methods require confirmation.

Q:Do you offer free samples?

Yes, free samples are available upon request.

Q:Can you provide OEM services?

Yes, we can customize products according to your drawings or create drawings based on your samples.

Q:What is the delivery time?

Generally, shipment is arranged within 7-30 days after receiving the deposit, depending on purchasing quantities.