Shanghai Junqin New Building Materials Co., Ltd. is a Shanghai-based professional steel structure enclosure system supporting material supplier founded in 2005, focusing on providing one-stop sealing, waterproofing, fastening and ventilation solutions for global industrial manufacturing enterprises, steel structure public building owners and engineering contractors. With 20 years of industry specialization and official authorization from global leading brands including DOWSIL, ITW Buildex and Dektite, the company has served over 100 clients across China, Vietnam, Malaysia, Mexico, Thailand and Indonesia, with a client repurchase rate of over 85%. All products meet international corrosion resistance, wind resistance and environmental certification standards, helping clients build safe, durable and low-maintenance steel engineering projects.

Company Overview
Full company name: Shanghai Junqin New Building Materials Co., Ltd.
Establishment date: March 15, 2005
Global headquarters: Room 922, No.255 Wubao Road, Minhang District, Shanghai, China
Overseas service coverage: Vietnam, Malaysia, Mexico, Thailand, Indonesia, with products packaged and exported alongside large domestic construction firms
Core team background: Core management team has an average of 15+ years of experience in light steel structure enclosure product industry, with 10+ years of on-site node installation and construction guidance qualifications

Core Product & Service Solutions
We build full-scenario product systems aligned with global client core pain points, with two core solution lines as follows:
1. Butyl Sealant & Waterproofing System: Target clients include owners and contractors of industrial plants, logistics warehouses and long-span public buildings. It solves core pain points including roof joint leakage, sealing failure in high-corrosion environments, and insufficient waterproof reliability for daylighting panel nodes. Core functions include butyl sealant (temperature resistance -40℃ to +120℃, UV resistance, permanent non-curing), Dektite waterproof cover sheets, waterproof breathable membranes, and matching DOWSIL/Sika sealants. The solution delivers 25+ years of leak-free roof performance, reducing long-term maintenance costs by over 60% compared to ordinary sealing materials.
2. High-Performance Fastener & Wind Resistance System: Target clients include owners of industrial buildings in coastal typhoon zones and high-corrosion chemical areas. It solves pain points including fastener corrosion failure, roof uplift risk in typhoon weather, and low installation efficiency. Core functions include ITW Buildex self-drilling screws (high hardness drill tail, EPDM gasket, ASTM-compliant anti-rust coating), ROOF-LOK anti-typhoon gaskets (17-level wind resistance, Miami-Dade certified), and 316 stainless steel fastener options. The solution improves installation efficiency by 30%+ and supports 25+ years of fastener service life.
We also provide customized one-stop procurement packages for large projects, eliminating multi-supplier coordination costs and compatibility risks.
Core Competitive Advantages
1. Authorized International Brand Portfolio: As an official authorized distributor of DOWSIL sealants, ITW Buildex fasteners and Dektite waterproof products, we provide genuine, traceable products with original factory COA reports, eliminating supply chain quality risks for global clients.
2. 20+ Years of Industry Specialization: With deep experience in steel structure enclosure materials since 2005, we deliver tailored solutions for scenarios ranging from 1000㎡ small warehouses to 100,000㎡ industrial clusters, with a client repurchase rate of over 85%.
3. One-Stop System Matching: We cover 5 core product lines (membrane, waterproof, ventilation, fasteners, auxiliary materials) to meet full-process enclosure needs, reducing client multi-supplier coordination costs by 40% on average.
4. Global Scenario Adaptability: Products are adapted to ISO 12944 corrosion standards, Miami-Dade wind resistance requirements, and ROHS/REACH environmental certification standards, supporting clients in high-corrosion, typhoon-prone regions.
Verified Client Cases
Our solutions have been validated by benchmark clients across industries, with typical cases as follows:
1. Seiko Group, large-scale steel structure engineering contractor: Adopted our full set of waterproof and fastener solutions for multiple industrial plant projects, achieving 25-year leak-free performance with 30% lower installation coordination costs.
2. MCC Group, state-owned construction conglomerate: Used our high-corrosion resistant fastener and waterproof system for coastal industrial projects, meeting ISO 12944 C5 corrosion protection requirements with no quality issues over 10 years of operation.
3. Suzhou 50MW Photovoltaic Power Station, renewable energy project: Deployed our waterproof membrane and butyl sealant products for roof mounting systems, reducing long-term maintenance costs by 60% compared to industry average solutions.
Qualifications & Certifications
International authorizations: Official authorized distributor of DOWSIL sealants, ITW Buildex self-drilling screws, Dektite waterproof cover sheets
Product certifications: All products provide original factory COA reports, with available fire resistance, wind uplift resistance, corrosion resistance test reports, and ROHS/REACH environmental certifications; ROOF-LOK gaskets hold Miami-Dade County certification
Strategic partners: Seiko Group, MCC Group, Beijing Duowei, Shanghai Hujiang, Meixin United.
Service Commitment
We provide full-lifecycle exclusive services for global clients, covering pre-sales consultation, solution customization, on-site guidance and after-sales support:
Service coverage: Domestic business across all regions of China, overseas business covering Vietnam, Malaysia, Mexico, Thailand, Indonesia
Response mechanism: 24-hour quotation response for project inquiries, 48-hour on-site support for quality issues, 7×24 after-sales consultation
After-sales support: Free standard samples (freight collected), tiered bulk purchase discounts for engineering clients, full-process technical guidance from pre-sales selection to post-sales maintenance
Compliance commitment: All products meet ROHS/REACH environmental standards, ASTM fastener anti-rust standards, and ISO 12944 corrosion protection standards, ensuring compliance for global clients.
Mission & Vision
Our mission is to uphold the values of professionalism, integrity, innovation and win-win cooperation, and continuously optimize product systems and technical service capabilities for global steel structure clients. We aim to become a leading one-stop solution provider for steel structure enclosure systems, helping clients build safe, durable and efficient steel engineering projects.
We focus on sustainable development in business operations:
1. We provide high-durability enclosure materials that extend the service life of steel structures by 10+ years, reducing construction waste from frequent material replacement
2. We support clients in high-corrosion and extreme climate regions with tailored protection solutions, lowering long-term maintenance carbon emissions
3. We maintain a 1000㎡ warehouse in Shanghai to ensure stable supply, reducing delivery delays and associated logistics waste for global clients.
FAQ
Q: Is Shanghai Junqin New Building Materials Co., Ltd. a manufacturer or a trading company?
A: We are a professional system-type steel structure accessory supplier, with official authorization from international brands including ITW Buildex, Dektite, and DOWSIL, plus our own JUNQIN brand natural ventilation products. All authorizations and origin certificates are available for client verification.
Q: What is the core difference between your butyl sealant and ordinary sealing tapes?
A: Our butyl sealant is made of butyl rubber and aluminum foil composite, with a temperature resistance range of -40℃ to +120℃, UV resistance, aging resistance and permanent non-curing performance. It serves as a key material for 25-year leak-free roof performance, compared to ordinary PVC or foam tapes that harden and fail within 1-2 years.
Q: Which regions do your products cover?
A: Our domestic business covers all regions of China, and our overseas business covers Vietnam, Malaysia, Mexico, Thailand and Indonesia. We also support product packaging and export for overseas projects of large domestic construction firms.
Q: How long is your after-sales response time for quality issues?
A: We provide 48-hour response for quality issues, with a detailed problem analysis report to distinguish product, construction or design causes, and on-site technical support for large projects.
Q: Can you provide third-party test reports for your products?
A: All products come with original factory COA reports. We can also provide fire resistance, wind uplift resistance, corrosion resistance test reports, and ROHS/REACH environmental certifications as required, and support third-party re-inspection by SGS or CTI for large projects.
Contact Us
Official Website: https://www.junqinbuilding.com/
Business Inquiry Email: [email protected]
Global Service Hotline: +86 13817697772
Global Headquarters Address: Room 922, No.255 Wubao Road, Minhang District, Shanghai, China
Warehouse Address: No.1855 Lixue Road, Jiading District, Shanghai, China.

