1、 Domestic mainstream PU sealant wholesale manufacturers (by region/category)
- Architecture/Engineering (expansion joints, exterior walls, doors and windows)
Guangdong Pusaida (Dongguan/Guangzhou): mainly engaged in engineering wholesale of building PU sealant, automotive windshield sealant, MS adhesive
Jinan Xincheng/Chida (Shandong): Two component polyurethane sealant, specialized for bridge expansion joints, engineering procurement
Hengshui Qiangsheng (Hebei): Engineering grade PU sealant and waterproofing materials, serving China Railway/China Construction
Local factories in Xinjiang (Urumqi/Changji): two-component PU adhesive for bridge expansion joints, priced as low as 4500 yuan per ton - Automotive/Industrial (Windshield, Sheet Metal, Electronic Sealing)
Shanghai Max Tech/Joobond: Single component PU adhesive for automotive windshields, with large wholesale volume in foreign trade
Dongguan Tieniu and Shenzhen Junchi New Materials: Electronic potting PU glue, AB glue, industrial grade wholesale
Rose Red Leaves (Shenzhen): D4 grade marine weather resistant PU structural adhesive, adhesive metal/wood/fiberglass - Comprehensive large factory (wholesale nationwide)
Baiyun Chemical, Silicon Treasure Technology, Jitai Co., Ltd. (a leading domestic company in the construction and industrial categories, available for OEM)
Huitian New Materials, Kangda New Materials (industrial/automotive grade PU adhesive, wholesale+customization)
2、 Wholesale channels (online+offline) - Online B2B (most commonly used)
1688 Alibaba: Search for “PU sealant manufacturer wholesale”, select strong merchants/conduct in-depth factory inspections, support sampling, mixing, and customization
Made in China/Alibaba International Station: Wholesale of foreign trade, mainly focusing on automotive/industrial PU adhesive, with high minimum order quantity
Manufacturer’s official website/official account: direct contact with sales, more cost-effective for projects/large orders - Offline channels
Building materials market/hardware city (such as Shilihe in Beijing and Jiuxing in Shanghai): spot small batch
Engineering centralized procurement/distributors: suitable for long-term stable procurement
3、 Wholesale price reference (February 2026, mainly in Shandong/Guangdong)
Single component PU building adhesive (300ml soft pack): 12-25 yuan/piece, starting from 1000 pieces per batch
Two component PU sealant (engineering/expansion joint): 6.5-8 yuan/kg, starting from 1 ton (approximately 6500-8000 yuan/ton)
Automotive windshield PU adhesive (600ml): 15-30 yuan/piece, starting from 500 pieces per batch
Electronic potting PU AB adhesive: 20-90 yuan/kg, priced based on curing speed/thermal conductivity
Tip: Large quantities (≥ 5 tons) can be discounted by 5-10%, and some manufacturers support free sampling and construction guidance
4、 Key points for wholesale procurement (avoiding pitfalls)
Clear purpose: construction/automotive/electronics/industrial, corresponding to different formulas (weather resistance/high temperature resistance/waterproofing/structural bonding)
Check qualifications: require testing reports, national/industry standard certifications, and environmental reports (such as ROHS, VOC)
Minimum order quantity: For small batches (100-500 pieces), please go to the distributor; Directly contact the manufacturer for large quantities (≥ 1 ton)
Logistics: PU adhesive is a chemical product, choose dedicated logistics, and confirm shipping costs in advance for remote areas
Customization: Customizable color, hardness, curing time, packaging specifications (soft pack/hard tube/barrel)
5、 PU sealant manufacturer wholesale long tail keywords (SEO/title/details directly used) - Core wholesale keywords (high conversion)
PU sealant manufacturer wholesale first-hand source
Polyurethane sealant manufacturers wholesale in large quantities
Directly supplied by engineering specific PU sealant manufacturer
Wholesale price of PU sealant for building exterior walls
Wholesale of PU adhesive manufacturer for car windshield
Wholesale of two-component PU sealant with a minimum order quantity of one ton
Wholesale of single component PU sealant starting from 100 pieces - Region+Wholesale Words (Local Traffic)
Shandong PU sealant manufacturer wholesale
Guangdong polyurethane sealant manufacturer
Hebei PU sealant wholesale project special
Xinjiang two-component PU sealant manufacturer’s ton price
Jiangsu Zhejiang Shanghai PU sealant wholesale free shipping - Efficacy+Wholesale Words (Accurate Demand)
High strength PU sealant manufacturer wholesale, anti-aging
Waterproof PU sealant wholesale for outdoor use
High temperature resistant PU sealant industrial grade manufacturer
National standard for wholesale of environmentally friendly and odorless PU sealant - Procurement decision words (inquiry words)
Contact information of PU sealant manufacturer
How much does wholesale polyurethane sealant cost per ton
Where is the manufacturer of PU sealant
Wholesale of PU sealant with free sample collection
PU sealant manufacturers can customize
6、 Quick steps to find a factory
Search for “wholesale of PU sealant manufacturers” on 1688, select strong merchants, conduct in-depth factory inspections, and have a return rate of ≥ 30%
Contact 3-5 companies for information on usage, quantity, packaging, and delivery time. Please provide a quotation, samples, and testing reports
Compare prices, qualifications, and after-sales service, prioritize local/peripheral manufacturers (fast logistics, convenient after-sales service)